| Tipo de elemento | Artículo de revista académica |
|---|---|
| Autor | Antoni Vivó-Pons |
| Autor | Mats Blomqvist |
| Autor | Anna Törnroos |
| Autor | Martin Lindegren |
| Resumen | Our understanding of the community assembly processes acting on non-indigenous species (NIS), as well as the relationship with native species is limited, especially in marine ecosystems. To overcome this knowledge gap we here develop a trait-based approach based on the functional distinctiveness metric to assess niche overlap between NIS and native species, using high-resolution data on benthic invertebrate communities in the Baltic Sea. Our results show that NIS retain a certain degree of similarity with native species, but display one or a few singular unique traits (e.g., bioturbation ability). Furthermore, we demonstrate that community assembly processes, including both environmental filtering and limiting similarity affect NIS establishment, but that their effects may be highly context dependent, as illustrated by pronounced spatial patterns in distinctiveness. Finally, our trait-based approach provides a generic framework applicable to other areas and organisms, to better understand and address biological invasions. |
| Fecha | 2023 |
| Idioma | en |
| Catálogo de biblioteca | Wiley Online Library |
| URL | https://onlinelibrary.wiley.com/doi/abs/10.1111/ele.14315 |
| Accedido | 24/9/2025 16:34:14 |
| Adicional | _eprint: https://onlinelibrary.wiley.com/doi/pdf/10.1111/ele.14315 |
| Volumen | 26 |
| Páginas | 1911-1925 |
| Publicación | Ecology Letters |
| DOI | 10.1111/ele.14315 |
| Número | 11 |
| ISSN | 1461-0248 |
| Fecha de adición | 24/9/2025 16:34:14 |
| Modificado | 23/10/2025 10:17:14 |
"Biotic resistance depends on the community composition and functionality, as more diverse communities show a greater variety of responses (Santamaría et al., 2021; Tilman, 2004)." (Vivó-Pons et al., 2023, p. 1911)
"To overcome this knowledge gap we here develop a trait-based approach based on the functional distinctiveness metric to assess niche overlap between NIS and native species, using high-resolution data on benthic invertebrate communities in the Baltic Sea." (Vivó-Pons et al., 2023, p. 1911)
"Our results show that NIS retain a certain degree of similarity with native species, but display one or a few singular unique traits (e.g., bioturbation ability)" (Vivó-Pons et al., 2023, p. 1911)
"Trait-based studies provide a mechanistic approach to advance our understanding of the underlying processes affecting community structure and function (Mcgill et al., 2006; Violle et al., 2007). Within invasion ecology, trait-based approaches to assess niche overlap between NIS and native species are largely needed (Gallien & Carboni, 2017). This is because traits, rather than taxonomic identities, can help to elucidate the biotic interactions and functional roles of co-occurring species, including NIS (Belmaker et al., 2013; Elleouet et al., 2014; Quell et al., 2021; Xu et al., 2022)." (Vivó-Pons et al., 2023, p. 1912)
"As an illustrative case study, we tested our proposed framework on benthic invertebrate communities in the Baltic Sea (Figure 2). This large semi- enclosed sea contains >130 recorded NIS, many of which display self-sustaining populations and affect native species in many ways (Leppäkoski et al., 2002; Ojaveer et al., 2021; Ojaveer et al., 2017)." (Vivó-Pons et al., 2023, p. 1912)
"while P. antipodarum was classified as one of the most distinct species in the regional pool (defined by the 10th decile)." (Vivó-Pons et al., 2023, p. 1917)
"where the three most distinct NIS (P. antipodarum, P. cornuta and S. benedictii) were relatively close to the native species classified as being the most distinct," (Vivó-Pons et al., 2023, p. 1919)
"P. antipodarum is native to freshwater in New Zealand but can also adapt to saline conditions (Hoy et al., 2012), in contrast to Marenzelleria, native from North America and able to withstand oligohaline conditions (Stigzelius et al., 1997). Hence, under low-salinity conditions, both species co-occur with more freshwater-like species, whereas as salinity increases marine species appear, being functionally similar to Marenzelleria and dissimilar to P. antipodarum." (Vivó-Pons et al., 2023, p. 1921)
| Tipo de elemento | Artículo de revista académica |
|---|---|
| Autor | Ran Zhang |
| Autor | Yue Gao |
| Autor | Rui Wang |
| Autor | Shigang Liu |
| Autor | Qianqian Yang |
| Autor | Yuan Li |
| Autor | Longshan Lin |
| Resumen | The impact of invasive alien species (IAS) is one of the direct factors causing global biodiversity decline and economic losses, and predicting the potential invasion risks of invasive species is crucial for developing prevention and control strategies. In recent years, an increasing number of studies have shown that invasive species undergo rapid shifts in climate niche in invaded areas. Accurately quantifying the dynamic shifts in the climate niche of invasive species in invaded areas is crucial for developing a more accurate framework for early warning of invasive species risks. Pomacea canaliculata is a freshwater snail found in South America and has become one of the most aggressive aquatic species in the world. Since its introduction to China in 1981, it has rapidly spread and caused multiple serious damages to agriculture, ecology, and public health. Therefore, based on multi-source distribution data of P. canaliculata, this study calculated the climate niche overlap by Schoener’ s D, quantified the niche shifts between the P. canaliculata in native and invaded areas (China) via the COUE scheme (a unified terminology representing niche centroid shift, overlap, unfilling, and expansion), and analyzed their changes on a time scale. The results revealed that there have been significant climate niche shifts (Schoener’s D < 0.2, niche similarity tests p > 0.01, niche equivalence tests p < 0.01) between the native and invaded areas (China) of P. canaliculata, which does not support the climate niche conservation hypothesis. The minimum temperature of the coldest month (Bio 6) and precipitation seasonality (Bio 15) were the key climate variables driving the climatic niche shift, and P. canaliculata can survive in colder and more arid regions than their native counterparts. The changes in the niche shifts in P. canaliculata on a time scale show significant temporal heterogeneity, and its invasion behavior in China presents a discontinuous and phased expansion pattern, with strong adaptability to new environments. The results are of great significance for the future development of more accurate ecological niche model (ENM), the formulation of more targeted prevention and control strategies, and the study of adaptive evolution mechanisms of invasive species. |
| Fecha | 2025/9 |
| Idioma | en |
| Catálogo de biblioteca | www.mdpi.com |
| URL | https://www.mdpi.com/2079-7737/14/9/1127 |
| Accedido | 23/10/2025 10:11:47 |
| Derechos | http://creativecommons.org/licenses/by/3.0/ |
| Adicional | Publisher: Multidisciplinary Digital Publishing Institute |
| Volumen | 14 |
| Páginas | 1127 |
| Publicación | Biology |
| DOI | 10.3390/biology14091127 |
| Número | 9 |
| ISSN | 2079-7737 |
| Fecha de adición | 23/10/2025 10:11:47 |
| Modificado | 23/10/2025 10:12:16 |
"This study investigates the climatic niche shifts in the invasive species Pomacea canaliculata between its native and invaded area (China), and quantitative analysis was conducted." (Zhang et al., 2025, p. 1)
"The results revealed that there has been a significant climate niche shifts between the native and invaded area (China) of Pomacea canaliculata, which does not support the climate niche conservation hypothesis. Pomacea canaliculata can survive in colder and drier regions than their native counterparts, demonstrate strong environmental adaptability." (Zhang et al., 2025, p. 1)
"based on multi-source distribution data of P. canaliculata, this study calculated the climate niche overlap by Schoener’ s D, quantified the niche shifts between the P. canaliculata in native and invaded areas (China) via the COUE scheme (a unified terminology representing niche centroid shift, overlap, unfilling, and expansion), and analyzed their changes on a time scale. The results revealed that there have been significant climate niche shifts (Schoener’s D < 0.2, niche similarity tests p > 0.01, niche equivalence tests p < 0.01) between the native and invaded areas (China) of P. canaliculata, which does not support the climate niche conservation hypothesis." (Zhang et al., 2025, p. 1)
"Most previous studies have assumed that the climatic niche of the P. canaliculata is conserved between its native and invaded areas. However, recent studies have shown that P. canaliculata may exhibit significant niche shifts during invasion and can adapt to a wider range of climatic conditions [22,32]." (Zhang et al., 2025, p. 3)
"To avoid including highly correlated variables in the models, multicollinearity was evaluated using Pearson pairwise correlation by means of the “Performance Analytics” statistical package in R 4.3.1." (Zhang et al., 2025, p. 5)
"Nineteen climate variables were examined to select a subset on the basis of two main principles: (1) variables were excluded from the analysis if the absolute value of their correlation index was greater than 0.8 (Figure 2); and (2) the climate variables selected from (1) were divided into three groups: the temperature variable group, the precipitation variable group, and the seasonal variable group." (Zhang et al., 2025, p. 5)
"This framework has three steps: (1) calculation of the density of occurrences and of environmental factors along the environmental axes of multivariate analysis (PCA); (2) measurement of niche overlap along the gradients of this multivariate analysis; and (3) statistical tests of niche equivalency and similarity [49]." (Zhang et al., 2025, p. 6)
"Principal component analysis (PCA) was performed with the nine selected climatic variables detailed above to represent the niche space occupied by P. canaliculata in the “native” and “invasive” (China) areas. Kernel density functions were applied to estimate the smoothed density of presence records and available environments along the first two axes of the PCA, preventing biases owing to the spatial resolution of the variables [26,48]." (Zhang et al., 2025, p. 6)
"The first PC axis, which was mainly represented by the minimum temperature of the coldest month (Bio 6)," (Zhang et al., 2025, p. 6)
"The analysis based on Schoener’s D and niche dynamic components (expansion, stability, and unfilling) revealed significant niche shifts in P. canaliculata during its invasion (Table 2). These changes were not only observed in overall patterns, but also exhibited distinct temporal dynamics." (Zhang et al., 2025, p. 8)
"The overall niche overlap between native and invasive P. canaliculata was remarkably low (Schoener’s D = 0.0467). Temporally, the niche overlap showed a pattern of initial decline followed by gradual increase; it reached its lowest value in the 2000s (Schoener’s D = 0.0175) before rebounding to Schoener’s D = 0.0418 by the 2020s. The results of similarity tests were all non-significant (p > 0.01), with niche similarity being lower than expected by chance, and failing to reject the null hypothesis. This finding indicates that P. canaliculata did not select for environmental conditions in the invaded range that were highly similar to those in its native range, demonstrating niche dissimilarity. In contrast, all niche equivalence tests yielded significant results (p < 0.01), rejecting the null hypothesis and confirming significant differences between the native niche and invasive niche. In summary, P. canaliculata exhibited a significant niche shift, rejecting the niche conservatism hypothesis for invasive species." (Zhang et al., 2025, p. 8)
"The finding that Bio 6 leads to a niche shift P. canaliculata indicates that its cold tolerance has increased in the invaded area (China), as P. canaliculata can reduce its metabolic rate and energy consumption in low-temperature environments [20]. In terms of behavioral performance, P. canaliculata burrows into the sediment to reduce the exposure time to cold water bodies, prevent extremely low temperatures, and increase the overwintering survival rate [15]. Another key driving variable, Bio 15, indicates that the invasive population of P. canaliculata in China is more adapted to environments with stronger precipitation. This is related to the increased drought tolerance of P. canaliculata. Studies have shown that P. canaliculata can survive the dry season by closing their shells or being dormant [32], whereas some invaded areas in China have distinct dry and wet seasons, which may screen individuals with greater drought tolerance." (Zhang et al., 2025, p. 10)
"The results revealed that there has been a significant climate niche shifts between the native and invaded area (China) of P. canaliculata, which does not support the ”climatic niche conservatism hypothesis”." (Zhang et al., 2025, p. 12)
| Tipo de elemento | Artículo de revista académica |
|---|---|
| Autor | P. B. Moyle |
| Autor | T. Light |
| Resumen | Because the integrity of aquatic ecosystems is being challenged worldwide by invading species, there is a growing need to understand the invasion process and to predict the success and effects of invading species. Case histories of fish invasions in streams, lakes, and estuaries indicate that invading species and systems being invaded interact in idiosyncratic ways that are often hard to predict, largely because of the role of environmental variability in deter mining rite outcomes of invasions. We nevertheless present a conceptual model of aquatic invasions and a dozen empirically-derived rules that seem to govern most aquatic invasions. While these rules are limited in their usefulness, they do seem to have more predictive value than rules derived from community assembly theory. Copyright (C) 1996 Elsevier Science Limited |
| Fecha | 1996 |
| Adicional | ISBN: 0006-3207 |
| Volumen | 78 |
| Páginas | 149-161 |
| Publicación | Biological Conservation |
| DOI | 10.1016/0006-3207(96)00024-9 |
| Número | 1-2 |
| Fecha de adición | 16/2/2023 9:37:34 |
| Modificado | 27/10/2025 10:05:21 |
| Tipo de elemento | Artículo de revista académica |
|---|---|
| Autor | Olivia K. Bates |
| Autor | Cleo Bertelsmeier |
| Resumen | Predictions of future biological invasions often rely on the assumption that introduced species establish only under climatic conditions similar to those in their native range. To date, 135 studies have tested this assumption of ‘niche conservatism’, yielding contradictory results. Here we revisit this literature, consider the evidence for niche shifts, critically assess the methods used, and discuss the authors’ interpretations of niche shifts. We find that the true frequency of niche shifts remains unknown because of diverging interpretations of similar metrics, conceptual issues biasing conclusions towards niche conservatism, and the use of climatic data that may not be biologically meaningful. We argue that these issues could be largely addressed by focussing on trends or relative degrees of niche change instead of dichotomous classifications (shift versus no shift), consistently and transparently including non-analogous climates, and conducting experimental studies on mismatches between macroclimates and microclimates experienced by the study organism. Furthermore, an observed niche shift may result either from species filling a greater part of their fundamental niche during the invasion (a ‘realised niche shift’) or from rapid evolution of traits adapting species to novel climates in the introduced range (a ‘fundamental niche shift’). Currently, there is no conclusive evidence distinguishing between these potential mechanisms of niche shifts. We outline how these questions may be addressed by combining computational analyses and experimental evidence. |
| Fecha | 2021-10-11 |
| Catálogo de biblioteca | ScienceDirect |
| URL | https://www.sciencedirect.com/science/article/pii/S0960982221011398 |
| Accedido | 24/11/2023 16:38:42 |
| Volumen | 31 |
| Páginas | R1252-R1266 |
| Publicación | Current Biology |
| DOI | 10.1016/j.cub.2021.08.035 |
| Número | 19 |
| Abrev. de revista | Current Biology |
| ISSN | 0960-9822 |
| Fecha de adición | 24/11/2023 16:38:42 |
| Modificado | 24/11/2023 16:40:12 |
"To date, 135 studies have tested this assumption of ‘niche conservatism’, yielding contradictory results. Here we revisit this literature, consider the evidence for niche shifts, critically assess the methods used, and discuss the authors’ interpretations of niche shifts. We find that the true frequency of niche shifts remains unknown because of diverging interpretations of similar metrics, conceptual issues biasing conclusions towards niche conservatism, and the use of climatic data that may not be biologically meaningful." (Bates y Bertelsmeier, 2021, p. 1252)
"an observed niche shift may result either from species filling a greater part of their fundamental niche during the invasion (a ‘realised niche shift’) or from rapid evolution of traits adapting species to novel climates in the introduced range (a ‘fundamental niche shift’)." (Bates y Bertelsmeier, 2021, p. 1252)
"A species’ distributional range is partly determined by its fundamental niche, that is, the set of environmental conditions under which the species can survive and reproduce (see Box 1 for a glossary of common terms used in this review)." (Bates y Bertelsmeier, 2021, p. 1252)
"linking a species’ range to the limits of its fundamental niche is not a straightforward matter. Species may not occupy all areas with suitable abiotic conditions. For example, geographic barriers25,26 that limit movement or biotic barriers (including competitors, predators, parasites25,26, or the absence of mutualistic species27,28) may limit species’ ranges29.Asa result, species usually occupy only part of their fundamental niche hypervolume, which is referred to as their ‘realised niche’18,26 (Box 1)." (Bates y Bertelsmeier, 2021, p. 1252)
"Often, ecologists study a species’ climatic niche by recording environmental variables at locations where the species currently occurs29,30. Such data correspond to the species’ realised niche, which is often assumed to be representative of the species’ fundamental requirements." (Bates y Bertelsmeier, 2021, p. 1252)
"The discrepancy between the realised and the fundamental niche is one reason why it is difficult to forecast a species’ range under changing environmental conditions." (Bates y Bertelsmeier, 2021, p. 1252)
"A niche shift corresponds to the establishment or persistence of a species under environmental conditions that are different from those in its current range." (Bates y Bertelsmeier, 2021, p. 1253)
"Niche shifts that occur when species fill a different part of their fundamental niche are referred to as ‘realised niche shifts’." (Bates y Bertelsmeier, 2021, p. 1253)
"Alternatively, the species’ fundamental niche may evolve in response to changing conditions, thereby adapting the species to novel climates (Box 1). This is referred to as a ‘fundamental niche shift’." (Bates y Bertelsmeier, 2021, p. 1253)
"A basic assumption of these models is that species are in equilibrium with their environment, that is, their current realised niche reflects the entire set of conditions under which the species may thrive" (Bates y Bertelsmeier, 2021, p. 1253)
"assessing the frequency of niche shifts is an unresolved issue of extreme importance for biodiversity forecasts." (Bates y Bertelsmeier, 2021, p. 1253)
"Therefore, it is particularly interesting to study species that are already experiencing novel conditions: several tens of thousands of species have been transported out of their native ranges as a result of ongoing globalization of human movements and trade54–57. Some of these species are able to establish and spread in their new environments. These introduced species provide a ‘semi-natural experiment’ in which they encounter novel environmental conditions58, allowing researchers to study the frequency and amplitude of niche shifts." (Bates y Bertelsmeier, 2021, p. 1253)
"Based on these variables, many studies differentiate three aspects of niche shifts: the overlap between the old and the new realised niches, the amount of expansion into novel environments, and the degree of ‘niche unfilling’ (Box 1) that occurs when the species abandons environmental conditions that were present in its historical range. Together, these different assessments are thought to provide an objective quantification of niche shifts65. However, despite these methodological advances, the extent of niche shifts in nature remains disputed, impairing predictions of future species’ ranges." (Bates y Bertelsmeier, 2021, p. 1254)
"Two recent meta-analyses by Liu and colleagues, one using ordination70 and the other using reciprocal species-distribution models71, came to opposite conclusions. However, these reviews were based on small subsets of the current literature. Here, we conducted the first comprehensive review of studies on niche shifts in introduced species, critically evaluating the current evidence for niche shifts and their potential mechanisms." (Bates y Bertelsmeier, 2021, p. 1255)
"These were then manually filtered to include only papers that have investigated climatic niche shifts between native and introduced ranges" (Bates y Bertelsmeier, 2021, p. 1255)
"In total, 135 studies reported niche-shift analyses in introduced species: the majority concentrated on plants (Figure S1) and 68.1% of studies focused on a single species. The majority of studies (63.7%) reported the presence of niche shifts (Figure 3A) and among the 639 species studied, 53.5% were found to shift their niche (Figure 3B)." (Bates y Bertelsmeier, 2021, p. 1255)
"A much greater issue than the use of different approaches to compare niches is the lack of standards to interpret nicheshift-metric results." (Bates y Bertelsmeier, 2021, p. 1256)
"the commonly used metrics ‘Schroeder’s D’ and ‘Hellinger’s I’ measure the degree of overlap in occurrence densities within the environmental space, comparing the native and introduced ranges80. Both metrics vary between 0 and 1, with lower values indicating a larger niche shift77,80, but there is no general limit when one should conclude niche conservatism versus a niche shift. Some studies do not attempt to find a threshold at all and among those that did, we strikingly found no difference in species’ Schroeder’s D overlap between reports of niche conservatism and niche shifts" (Bates y Bertelsmeier, 2021, p. 1256)
"Although thresholds of Schroeder’s D overlap are not intuitive, niche similarity and niche equivalency tests determine whether niche overlap values are significantly different from random77." (Bates y Bertelsmeier, 2021, p. 1257)
"An attractive explanation for niche shifts is the adaptive evolution of species’ traits, which in turn alter climatic tolerances116 — that is, a change in the species’ fundamental niche (Box 1). It has been suggested that rapid genetic adaptation may be important for invasive species faced with rapidly changing environmental conditions, possibly favoured by admixture of different source populations in the introduced range or genetic bottlenecks during the transport process72–74,117. However, to demonstrate this, experimental evidence is required showing that the spread of a population has been enabled by genetic changes adapting the species to new climates" (Bates y Bertelsmeier, 2021, p. 1259)
| Tipo de elemento | Artículo de revista académica |
|---|---|
| Autor | G. E. Hutchinson |
| Fecha | 1957-01-01 |
| Idioma | en |
| Catálogo de biblioteca | DOI.org (Crossref) |
| URL | http://symposium.cshlp.org/cgi/doi/10.1101/SQB.1957.022.01.039 |
| Accedido | 27/10/2025 9:57:14 |
| Volumen | 22 |
| Páginas | 415-427 |
| Publicación | Cold Spring Harbor Symposia on Quantitative Biology |
| DOI | 10.1101/SQB.1957.022.01.039 |
| Número | 0 |
| Abrev. de revista | Cold Spring Harbor Symposia on Quantitative Biology |
| ISSN | 0091-7451, 1943-4456 |
| Fecha de adición | 27/10/2025 9:57:14 |
| Modificado | 27/10/2025 9:57:28 |
| Tipo de elemento | Artículo de revista académica |
|---|---|
| Autor | Valeria Di Cola |
| Autor | Olivier Broennimann |
| Autor | Blaise Petitpierre |
| Autor | Frank T. Breiner |
| Autor | Manuela D'Amen |
| Autor | Christophe Randin |
| Autor | Robin Engler |
| Autor | Julien Pottier |
| Autor | Dorothea Pio |
| Autor | Anne Dubuis |
| Autor | Loic Pellissier |
| Autor | Rubén G. Mateo |
| Autor | Wim Hordijk |
| Autor | Nicolas Salamin |
| Autor | Antoine Guisan |
| Resumen | The aim of the ecospat package is to make available novel tools and methods to support spatial analyses and modeling of species niches and distributions in a coherent workflow. The package is written in the R language (R Development Core Team) and contains several features, unique in their implementation, that are complementary to other existing R packages. Pre-modeling analyses include species niche quantifications and comparisons between distinct ranges or time periods, measures of phylogenetic diversity, and other data exploration functionalities (e.g. extrapolation detection, ExDet). Core modeling brings together the new approach of ensemble of small models (ESM) and various implementations of the spatially-explicit modeling of species assemblages (SESAM) framework. Post-modeling analyses include evaluation of species predictions based on presence-only data (Boyce index) and of community predictions, phylogenetic diversity and environmentally-constrained species co-occurrences analyses. The ecospat package also provides some functions to supplement the ‘biomod2’ package (e.g. data preparation, permutation tests and cross-validation of model predictive power). With this novel package, we intend to stimulate the use of comprehensive approaches in spatial modelling of species and community distributions. |
| Fecha | 2017 |
| Idioma | en |
| Título corto | ecospat |
| Catálogo de biblioteca | Wiley Online Library |
| URL | https://onlinelibrary.wiley.com/doi/abs/10.1111/ecog.02671 |
| Accedido | 23/10/2025 10:41:41 |
| Derechos | © 2016 The Authors |
| Adicional | _eprint: https://nsojournals.onlinelibrary.wiley.com/doi/pdf/10.1111/ecog.02671 |
| Volumen | 40 |
| Páginas | 774-787 |
| Publicación | Ecography |
| DOI | 10.1111/ecog.02671 |
| Número | 6 |
| ISSN | 1600-0587 |
| Fecha de adición | 23/10/2025 10:41:41 |
| Modificado | 23/10/2025 10:42:08 |
"It is now recognized that four main factors shape the distribution of species in time and space: environmental suitability, colonisation history and ability, biotic interactions, and natural and anthropogenic disturbances (Pulliam 2000, Lortie et al. 2004, Soberon 2007)." (Di Cola et al., 2017, p. 774)
"species distribution models (hereafter SDMs, but other denominations are also used, such as ecological niche models ENMs, habitat suitability models HSMs, or climatic envelope models CEM" (Di Cola et al., 2017, p. 774)
"The aim of the ecospat package is to make available novel tools and methods to support spatial analyses and modeling of species niches and distributions in a coherent workflow." (Di Cola et al., 2017, p. 774)
"Pre-modeling analyses include species niche quantifications and comparisons between distinct ranges or time periods" (Di Cola et al., 2017, p. 774)
"Pre-modeling (or pre-processing) analyses are usually based on the observational data themselves, and include niche quantification (Fitzpatrick et al. 2007, Medley 2010), co-occurrence (Gotelli 2000), or phylogenetic diversity (Schweiger et al. 2008, Morlon et al. 2011) analyses." (Di Cola et al., 2017, p. 775)
"The aim of the ecospat package is to provide methods and utilities for spatial and/or temporal predictions of species distributions, communities’ properties and related analyses (e.g. niche quantification, co-occurrence analyses)." (Di Cola et al., 2017, p. 775)
"The interest of the package is that it possesses functions not only to run core modeling analyses at the individual species level, but also at the community level, and it additionally provides functions using raw observations and predictions to run preand post-modeling (or processing) analyses respectively." (Di Cola et al., 2017, p. 775)
"A major pre-modeling feature is the set of functions for niche quantification and tests of observed overlap in contrast to null distributions that were used in Broennimann et al. (2012), Petitpierre et al. (2012) and many other studies to quantify climatic niche shifts between the native and invaded ranges of alien species (Guisan et al. 2014), to analyse niche overlap between different species (Table 1) and to understand temporal dynamics in species niches and distributions (Nogués-Bravo 2009, Maguire et al. 2015)." (Di Cola et al., 2017, p. 775)
"including the possibility to measure niche unfilling, stability and expansion" (Di Cola et al., 2017, p. 775)
"It is important to notice here that all functions in Broennimann et al. (2007, 2012, 2014a), and Petitpierre et al. (2012) are uniquely found in ecospat (see also Guisan et al. 2014). These functions were designed to investigate changes in the niche of invasive species, but they can also be used to compare niches between sister species (Broennimann et al. 2014b)." (Di Cola et al., 2017, p. 778)
"The global overlap between the niches can be calculated using metrics such as Schoener’s D or Hellinger’s I (see Broennimann et al. 2012 for details of the procedure and metrics)" (Di Cola et al., 2017, p. 778)
"Additionally, in the case of invasive species, the niche overlap can be disentangled into three categories: unfilling, stability and expansion." (Di Cola et al., 2017, p. 778)
"Another key feature of the package is the implementation of the ESM strategy to model species distributions when a limited numbers of presences or occurrences is available (e.g. for rare species, cryptic species), typically with less than 30 presence records (Wisz et al. 2008). The ESM approach was shown to reduce overfitting in the models and accordingly improve model accuracy in such cases (Lomba et al. 2010, Breiner et al. 2015). It is based on fitting numerous small models, using two (or possibly three or more) variables at each time and finally performs an ensemble of the predictions weighted by each submodel performance. It avoids overparameterization of the models, following the sample size rule-of thumb of 10:1 subjects to predictors in multiple regression (Harrell 2001). For more details on the method, see Lomba et al. (2010) and Breiner et al. (2015)." (Di Cola et al., 2017, p. 778)
"Niche quantification, comparison and tests are key components of ecospat. Methods for quantifying niches typically rely on either ordination techniques or on nichebased species distribution models" (Di Cola et al., 2017, p. 778)
"Niche functions in the ecospat package provide tools to quantify and compare species niches with an ordination approach. The ‘hypervolume’ R package (Blonder et al. 2014) allows some niche quantification but without tests. Because niche functions in ecospat allow for direct comparisons of species–environment relationships in environmental space, no assumptions are required for the model-based approach (Broennimann et al. 2012). Likewise, the direct comparison can be made for a single variable (see example 1) or multiple variables. Most importantly, the package allows performing niche equivalency and niche similarity tests (Warren et al. 2008)," (Di Cola et al., 2017, p. 778)
"Example 1: niche quantification and modeling of an invasive species" (Di Cola et al., 2017, p. 781)
"This niche comparison framework is typically used to quantify and describe environmental niche shifts between the native and exotic ranges of invasive species or between sister species." (Di Cola et al., 2017, p. 781)
"The script in Supplementary material Appendix 1 generates occurrence density, niche overlap, niche equivalency and similarity tests, and uses a brand new tool allowing the calculation and the visualization of the niche dynamic as objects in the R environment." (Di Cola et al., 2017, p. 781)
"The function ecospat.niche.overlap() uses the differences in occurrence densities between the two species to measure either Schöner’s D or Hellinger’s I metrics, both of which range from 0 (no overlap) and 1 (complete overlap)." (Di Cola et al., 2017, p. 781)
"The functions ecospat.niche. equivalency.test() and ecospat.niche. similarity.test() perform tests of niche equivalency and similarity as described in Warren et al. (2008) but applied in environmental space, where the overlap is better assessed than in geographical space because it better takes into account climate availability and analogy between ranges (Broennimann et al. 2012, Guisan et al. 2014; but note that the last version of the ENMtool by Warren et al. (2008) implemented the ecospat approach to test niche differences in environmental space)." (Di Cola et al., 2017, p. 781)
"For details on niche equivalency and similarity tests, see Warren et al. (2008) and Broennimann et al. (2012)." (Di Cola et al., 2017, p. 782)
"We see that the niche overlap D is 0.22, and the tests further indicate that the niches of the example species in the native and invaded ranges are not more equivalent neither not more similar than expected by chance with p-value of 1 and 0.079 respectively. Therefore, we can conclude that there is no significant climatic niche conservatism between native and invaded ranges." (Di Cola et al., 2017, p. 782)
"The niche dynamics analysis shows that this niche difference is due to the species’ ability to expand into novel climates in the invaded range (niche expansion 15%) and to the fact that the species has not (yet) colonized all the climate conditions of the native niche (niche unfilling 28%)." (Di Cola et al., 2017, p. 782)
| Tipo de elemento | Artículo de revista académica |
|---|---|
| Autor | Sarina E. Loo |
| Autor | Ralph Mac Nally |
| Autor | P. S. Lake |
| Resumen | Evaluations of the potential distribution of invasive species can increase the efficiency of their management by focusing prevention measures. Generally, ecological models are built using occurrence data from a species' native range to predict the distribution in areas that the species may invade. However, historical and geographical constraints can limit a species' native distribution. Genetic Algorithm for Rule-set Production (GARP), an ecological niche modeling program, was used to predict the potential distribution of the invasive, freshwater New Zealand mudsnail, Potamopyrgus antipodarum, in Australia and North America. We compared the strength of the predictions made by models built with data from the snail's native range in New Zealand to models built with data from the locations invaded by the species. A time-series analysis of the Australian models demonstrated that range-of-invasion data can make better predictions about the potential distribution of invasive species than models built with native range data. Large differences among the model forecasts indicate that uncritical choice of the data set used in training the GARP models can result in misleading predictions. The models predict a large expansion in the range of P. antipodarum in both Australia and North America unless prevention measures are implemented rapidly. |
| Fecha | 2007-01 |
| Adicional | ISBN: 1051-0761 |
| Volumen | 17 |
| Páginas | 181-189 |
| Publicación | Ecological Applications |
| DOI | 10.1890/1051-0761(2007)017[0181:FNZMIR]2.0.CO;2 |
| Número | 1 |
| Fecha de adición | 13/2/2023 13:38:33 |
| Modificado | 27/10/2025 10:03:31 |
"Genetic Algorithm for Rule-set Production (GARP), an ecological niche modeling program, was used to predict the potential distribution of the invasive, freshwater New Zealand mudsnail, Potamopyrgus antipodarum, in Australia and North America." (Loo et al., 2007, p. 181)
"With increasing globalization, the spread of invasive species has accelerated rapidly, resulting in native biodiversity loss, changes in ecosystem structure and function and alterations of disturbance regimes (Mack and D'Antonio 1998, Mack et al. 2000, Sala et al. 2000)." (Loo et al., 2007, p. 181)
"o increase efficiency of prevention measures, predictions of where the nonnative species will invade and of the location of its potential habitat are critical." (Loo et al., 2007, p. 181)
"These tools (e.g., BIOCLIM, CLIMEX, and GARP) generally correlate the known distribution of the species to various climatic and/or environmental variables by using regression or machine-learning techniques to fit "envelopes" (Loo et al., 2007, p. 181)
"ata from the range of invasion may be incomplete because the invader often has not reached its entire potential range in the invaded region and, therefore, has yet to colonize the full range of ecological conditions that it can tolerate." (Loo et al., 2007, p. 181)
"In its native range, a species may be limited by factors such as competition, predation, and parasitism" (Loo et al., 2007, p. 181)
"When transported to a new region, the species may be released from these constraints and encounter ecological conditions conducive to its establishment and spread (Mack et al. 2000, Kriticos and Randall 2001, Peterson and Vieglais 2001)." (Loo et al., 2007, p. 181)
"Species whose native range is an island ecosystem may have physiological tolerances that exceed those found upon the island" (Loo et al., 2007, p. 181)
"in this study, we compared models built with geographical data from an invader's native range with those built with data from the range of invasion." (Loo et al., 2007, p. 182)
"-series data allow models built with the range-of-invasion data to be validated predictivel" (Loo et al., 2007, p. 182)
"For our case study, we have chosen the New Zealand mudsnail (Potamopyrgus antipodarum), because it is native to a relatively narrow range of ecological conditions, yet it has successfully invaded three continents. Also, a comprehensive time-series data set was available documenting the spread of P. antipodarum across Australia since its initial introduction in the 1870" (Loo et al., 2007, p. 182)
"The impacts of P. antipodarum are complex and variable. In an Australian stream, Schreiber et al. (2002) found the colonization of native macroinvertebrates was positively correlated with densities of P. antipodarum. A study from the United States found the reverse pattern (Kerans et al. 2005)." (Loo et al., 2007, p. 182)
"The spread of P. antipodarum has been both passive and active. It has been estimated that the snails can move upstream at a rate of 1 km/yr (Lassen 1975)." (Loo et al., 2007, p. 182)
"Most of the known presences of P. antipodarum in the western United States were not predicted, resulting in a low AUC value" (Loo et al., 2007, p. 184)
"in the case of the New Zealand mudsnail, P. antipodarum, models built with native-range data did not make accurate predictions about patterns of invasion. Ecological models built with data from the range of invasion were found to be useful and informative." (Loo et al., 2007, p. 185)
| Tipo de elemento | Artículo de revista académica |
|---|---|
| Autor | Biswa Bhusana Mahapatra |
| Autor | Nipu Kumar Das |
| Autor | Anushree Jadhav |
| Autor | Abhisikta Roy |
| Autor | Neelavar Ananthram Aravind |
| Resumen | Molluscs are the second largest and most speciose invertebrate phylum after Arthropoda. There are around 7000 freshwater molluscs that play an important role in the ecosystem. Although many of these freshwater species are very restricted in their habitats, due to the increase in globalisation, trade, and transport, freshwater molluscs get introduced to new environments, becoming problematic to the native biodiversity and humans. Our compilation reveals 28 invasive freshwater molluscs globally, which reportedly cause serious problems to the native biodiversity, including economic loss, agriculture, and others. The major pathways of introduction for the freshwater molluscs are found to be accidental/unintentional (e.g. as hitchhikers with macrophytes, ballast water, aquarium waste disposal) and pet trade. We obtained the distribution records for 28 species from global databases like Global Biodiversity Information Facility (GBIF), iNaturalist, and the published and grey literature. The species distribution modelling reveals Europe, South America, and Eastern North America as the most vulnerable regions. Niche dynamics analysis shows 14 species with lower and nine species with high niche overlap across the native and introduced ranges. Two species i.e. Corbicula fluminea and Physella acuta follow niche conservatism. |
| Fecha | 2023 JUL 26 |
| Idioma | English |
| Título corto | Global freshwater mollusc invasion |
| Catálogo de biblioteca | Clarivate Analytics Web of Science |
| URL | https://www.webofscience.com/api/gateway?GWVersion=2&SrcAuth=DynamicDOIArticle&SrcApp=WOS&KeyAID=10.1007%2Fs10750-023-05299-z&DestApp=DOI&SrcAppSID=EUW1ED0CD4G5UFWSJUp8PEbIgNfmE&SrcJTitle=HYDROBIOLOGIA&DestDOIRegistrantName=Springer-Verlag |
| Accedido | 22/11/2023 13:10:10 |
| Adicional | Num Pages: 20 Place: Dordrecht Publisher: Springer Web of Science ID: WOS:001034208900001 |
| Publicación | HYDROBIOLOGIA |
| DOI | 10.1007/s10750-023-05299-z |
| Abrev. de revista | Hydrobiologia |
| ISSN | 0018-8158, 1573-5117 |
| Fecha de adición | 22/11/2023 13:10:10 |
| Modificado | 24/11/2023 16:45:30 |
"Molluscs are the second largest and most speciose invertebrate phylum after Arthropoda. There are around 7000 freshwater molluscs that play an important role in the ecosystem" (Mahapatra et al., 2023, p. 1)
"freshwater molluscs get introduced to new environments, becoming problematic to the native biodiversity and humans" (Mahapatra et al., 2023, p. 1)
"28 invasive freshwater molluscs globally," (Mahapatra et al., 2023, p. 1)
"The major pathways of introduction for the freshwater molluscs are found to be accidental/ unintentional (e.g. as hitchhikers with macrophytes, ballast water, aquarium waste disposal) and pet trade." (Mahapatra et al., 2023, p. 1)
"The species distribution modelling reveals Europe, South America, and Eastern North America as the most vulnerable regions." (Mahapatra et al., 2023, p. 1)
"Niche dynamics analysis shows 14 species with lower and nine species with high niche overlap across the native and introduced ranges" (Mahapatra et al., 2023, p. 1)
"On the contrary, the invasive freshwater molluscs alter nutrient dynamics (Strayer et al., 1999; Twardochleb et al., 2013), physical structure and composition of benthic habitats (Nalepa et al., 1996; Karatayev et al., 2007), disrupt native species interactions and food webs within freshwater ecosystems (Twardochleb et al., 2013; Zhan et al., 2021). They often compete with native species for resources, potentially leading to reduced biomass and altered community structure (Leuven et al., 2009; Twardochleb et al., 2013)." (Mahapatra et al., 2023, p. 2)
"A large proportion of freshwater macroinvertebrate invaders are molluscs and crustaceans (Karatayev et al., 2009), and the pet trade has been considered an important source of introduction (Padilla & Williams, 2004; Gherardi et al., 2009)." (Mahapatra et al., 2023, p. 2)
"Alonso & Castro-Diez (2008) listed several functional traits which explain the successful spread and establishment of non-native species." (Mahapatra et al., 2023, p. 2)
"Also, freshwater ecosystems are more prone to invasion than terrestrial and marine ecosystems due to their natural dynamic hydrological cycle and human activities (Moorhouse & Macdonald, 2015; Dudgeon, 2019)." (Mahapatra et al., 2023, p. 2)
"The active dispersal of freshwater molluscs is poor (Dillon, 2000) except for some species of mussels (Schwalb et al., 2015); hence their dispersal occurs primarily via accidental and passive dispersal mechanisms, e.g. with birds, floods, aquarium trade, and so on." (Mahapatra et al., 2023, p. 2)
"For example, apple snails (Pomacea maculata and P. canaliculata) cause damage to rice (Oryza sativa) fields, native biodiversity and tropical wetland ecosystem functioning, resulting in severe economic losses across the globe" (Mahapatra et al., 2023, p. 2)
"Asian clam (Corbicula fluminea) affects freshwater ecosystems by altering biogeochemical cycles and food webs by competing with native species (Sousa et al., 2008a,b; Ilarri & Sousa, 2012; Azevêdo et al., 2016)." (Mahapatra et al., 2023, p. 3)
"SDMs are based on fundamental assumptions such as niche conservatism, the tendency of a species to maintain ancestral ecological requirements (Wiens & Graham, 2005; Peterson, 2011), and distributional equilibrium under the current climate (Elith et al., 2006)." (Mahapatra et al., 2023, p. 3)
"Under these assumptions, invasive species tend to occupy an equivalent niche in the introduced range compared to the native range in the invasion process (Peterson, 2011; Liu et al., 2020). However, relying on SDM only is challenging since niche shifts have been shown in the case of many species’ introduction. Several recent studies show invasive species belonging to different taxa such as fish (Lauzeral et al., 2011), insects (Fitzpatrick et al., 2007; Medley, 2010), plants (Panda et al., 2018), fungi (Wei et al., 2017), and amphibians (Tingley et al., 2014; Rödder et al., 2017) undergo niche shift process." (Mahapatra et al., 2023, p. 3)
"Using a principal component analysis (PCA) of all climatic variables, the COUE scheme plots a two-dimensional environmental space (Broennimann et al., 2012; Glennon et al., 2014; Wiens et al 2010). The environmental space of an invasive species can be divided into three sections: (1) Stability (S), i.e. the intersection of both native and introduced niche, (2) Unfilling (U), i.e. a native niche which is analogous to the introduced environment, and (3) Expansion (E), i.e. an introduced niche which is analogous to the native environment (Petitpierre et al., 2012; Guisan et al., 2014)." (Mahapatra et al., 2023, p. 3)
"The present study aimed to (a) assess the distribution patterns and major pathways of the introduction" (Mahapatra et al., 2023, p. 3)
"of selected invasive freshwater molluscs across the globe, (b) assess the potential distribution of the selected invasive freshwater molluscs for the current climate scenario as well as in future climate scenarios, and (c) look at whether the selected invasive freshwater molluscs largely conserve their niches across the native and the introduced ranges" (Mahapatra et al., 2023, p. 3)
"The freshwater invasive mollusc list was collated from the Centre for Agriculture and Bioscience International (CABI, www.cabi.org). MolluscaBase (https://www.molluscabase.org/) and existing literature were used to correct synonymy and other taxonomical errors." (Mahapatra et al., 2023, p. 3)
"we considered 28 species for our study for which we have reasonable occurrence points and which are widespread. The remaining with less than 20 occurrence points and restricted distribution were excluded from the analysis (Table 1)." (Mahapatra et al., 2023, p. 4)
"The pathways of introduction were categorised into several categories, as listed in Table 1." (Mahapatra et al., 2023, p. 4)
"SDM was carried out for the data points from native and invaded regions (Campos et al., 2014)." (Mahapatra et al., 2023, p. 4)
"For each occurrence point, the values of bioclimatic layers were extracted using the point sampling tool in QGIS ver 3.16. Pearson’s correlation was used to reduce multicollinearity and over parametrisation between different environmental variables. To minimise the redundancy in the result, one of the two highly correlated bioclimatic variables with |r|> 0.70 was removed (Mahapatra & Aravind, 2021). SDMs were built using MaxEnt ver 3.4.4 (Phillips, 2005; Elith et al., 2011)." (Mahapatra et al., 2023, p. 4)
"All SDMs were implemented, including occurrence data from native and introduced ranges. Using data from the entire range of species’ distribution has been suggested rather than only from native or introduced ranges (Broennimann & Guisan, 2008; Shabani & Kumar, 2015)" (Mahapatra et al., 2023, p. 4)
"The AUC (area under the curve) of ROC (threshold independent) ranges from 0 to 1. The higher the AUC value, the better the prediction of the model. Values ranging from 0.5 to 0.6, 0.6 to 0.7, 0.7 to 0.8, 0.8 to 0.9, and 0.9 to 1.0 represent poor, average, good, better, and excellent, respectively (Swets, 1988; Zhang et al., 2021)." (Mahapatra et al., 2023, p. 4)
"To test for Niche dynamics (potential shifts, expansion, contraction, or no change) between native and introduced regions, we applied a Principal Component Analysis (PCA-env) approach as proposed by Broennimann et al. (2012)." (Mahapatra et al., 2023, p. 7)
"The niche overlap was estimated based on the niche overlap index, i.e. Schoener’s D index, which ranges from zero (complete discordance) to one (identical) (Rödder & Engler, 2011)" (Mahapatra et al., 2023, p. 7)
"Besides the niche overlap index, three other indices were assessed, i.e. unfilling (U), stability (S), and expansion (E). A niche similarity test and a niche equivalency test were applied to compare the native and introduced ranges." (Mahapatra et al., 2023, p. 7)
"For most species, the area of suitable habitat decreases in the future from current climate scenarios" (Mahapatra et al., 2023, p. 7)
"A significant decline (over 20%) was seen in species such as Biomphalaria glabrata, Ferrissia californica, Lithoglyphus naticoides, Planorbella duryi, Potamopyrgus antipodarum, and Valvata piscinalis." (Mahapatra et al., 2023, p. 7)
"Potamopyrgus antipodarum, Pomacea bridgesii, Pseudosuccinea columella, Viviparus ater, and Viviparus viviparus show decline in the suitable area (over 30%; Table 3)." (Mahapatra et al., 2023, p. 8)
"A significant number of species (22 out of 28) show low (< 0.5) niche overlap, indicating that they do not conserve the niche in the introduced regions (Table 3)." (Mahapatra et al., 2023, p. 8)
"Six species show very low niche overlap (< 0.2) viz. Dreissena rostriformis bugensis, Menetus dilatatus, Corbicula fluminalis, Dreissena polymorpha, Limnoperna fortunei, Ferrissia californica, Heterogen japonica, and Potamopyrgus antipodarum." (Mahapatra et al., 2023, p. 8)
"Preston et al. (2022) showed that the aquarium trade (41%) is the major mode of freshwater mollusc introductions and that 37% of all freshwater mollusc introductions happen via the pet trade." (Mahapatra et al., 2023, p. 9)
"Another species, i.e. P. maculata, has been used widely in research (www.cabi.org). Accidental release or escape from laboratories could lead to a successful invasion, although successful invasion via this pathway is not yet reported for this species." (Mahapatra et al., 2023, p. 9)
"The pathway of introduction varies according to the size of the species, i.e. smaller sizes tend to be introduced via unintentional or accidental ways (such as hitchhikers and ballast water). In contrast, larger ones get introduced mainly through the pet trade and for food." (Mahapatra et al., 2023, p. 10)
"Our results show that most parts of Europe, Eastern North and South America, and East Asia are highly prone to invasion under all three climate scenarios. Except for South America, these regions are known for high trade with other parts of the world. It has been shown that the global trends in trade and transport have shaped biological invasions (Perrings et al., 2005; Meyerson & Mooney, 2007), especially in the case of the European region, which has strong trade and transportation links with the rest of the world. This has been a significant facilitator for the introduction of many invasive alien species (Haubrock et al., 2021)." (Mahapatra et al., 2023, p. 11)
"The present study is the first to demonstrate that a significant number of invasive freshwater molluscs (22 out of 28 species studied) show either niche shifts or expansions in the introduced ranges across continents." (Mahapatra et al., 2023, p. 11)
"Several examples across taxonomic groups have shown that many invasive species occupy different climatic niches in the introduced ranges (Lopez et al., 2017; Dreyer et al., 2019)." (Mahapatra et al., 2023, p. 13)
"When comparing the native and introduced ranges of species, we discovered a significant amount of unoccupied niche space within the species’ native habitat." (Mahapatra et al., 2023, p. 13)
"This could be attributed to the absence of data from the invaded region and the lack of natural enemies." (Mahapatra et al., 2023, p. 13)
"Also, the human footprint index (HFI) and other anthropogenic factors that influence the introduction and spread of molluscs could be used in assessing the actual distribution." (Mahapatra et al., 2023, p. 13)
"The limited data come especially from developing and underdeveloped countries. This needs to be addressed, and future modelling exercises should consider including more data and other environmental or habitat variables." (Mahapatra et al., 2023, p. 13)
"Using SDM, we predicted the areas potentially vulnerable to invasion by freshwater molluscs under current and future climatic scenarios at the global level. We show that the hotspot of freshwater mollusc invasion is in Western Europe, the eastern part of North America, South America, and Asia." (Mahapatra et al., 2023, p. 13)
"A significant number of invasive mollusc species show niche shifts or expansion in the introduced ranges under future climate change scenarios." (Mahapatra et al., 2023, p. 13)
"Novel use of invasive species has to be considered and encouraged. For example, Pomacea canaliculata has been used as food (Ghosh et al., 2017), lime for catfish cultivation (Jubaedah et al., 2018), and liquid organic fertiliser (Siregar et al., 2017). The Dreissena polymorpha has been used to improve water quality (McLaughlan & Aldridge, 2013) and as chicken feed (McLaughlan et al., 2014)." (Mahapatra et al., 2023, p. 14)
| Tipo de elemento | Artículo de revista académica |
|---|---|
| Autor | Dennis Rödder |
| Autor | Flora Ihlow |
| Autor | Julien Courant |
| Autor | Jean Secondi |
| Autor | Anthony Herrel |
| Autor | Rui Rebelo |
| Autor | G. J. Measey |
| Autor | Francesco Lillo |
| Autor | F. A. De Villiers |
| Autor | Charlotte De Busschere |
| Autor | Thierry Backeljau |
| Resumen | Although of crucial importance for invasion biology and impact assessments of climate change, it remains widely unknown how species cope with and adapt to environmental conditions beyond their currently realized climatic niches (i.e., those climatic conditions existing populations are exposed to). The African clawed frog Xenopus laevis, native to southern Africa, has established numerous invasive populations on multiple continents making it a pertinent model organism to study environmental niche dynamics. In this study, we assess whether the realized niches of the invasive populations in Europe, South, and North America represent subsets of the species’ realized niche in its native distributional range or if niche shifts are traceable. If shifts are traceable, we ask whether the realized niches of invasive populations still contain signatures of the niche of source populations what could indicate local adaptations. Univariate comparisons among bioclimatic conditions at native and invaded ranges revealed the invasive populations to be nested within the variable range of the native population. However, at the same time, invasive populations are well differentiated in multidimensional niche space as quantified via n‐dimensional hypervolumes. The most deviant invasive population are those from Europe. Our results suggest varying degrees of realized niche shifts, which are mainly driven by temperature related variables. The crosswise projection of the hypervolumes that were trained in invaded ranges revealed the south‐western Cape region as likely area of origin for all invasive populations, which is largely congruent with DNA sequence data and suggests a gradual exploration of novel climate space in invasive populations. |
| Fecha | 2017-5-10 |
| Catálogo de biblioteca | PubMed Central |
| URL | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5468131/ |
| Accedido | 24/11/2023 16:10:45 |
| Adicional | PMID: 28616199 PMCID: PMC5468131 |
| Volumen | 7 |
| Páginas | 4044-4058 |
| Publicación | Ecology and Evolution |
| DOI | 10.1002/ece3.3010 |
| Número | 11 |
| Abrev. de revista | Ecol Evol |
| ISSN | 2045-7758 |
| Fecha de adición | 24/11/2023 16:10:45 |
| Modificado | 1/3/2024 10:09:58 |
"it remains widely unknown how species cope with and adapt to environmental conditions beyond their currently realized climatic niches (i.e., those climatic conditions existing populations are exposed to)." (Rödder et al., 2017, p. 4044)
"we assess whether the realized niches of the invasive populations in Europe, South, and North America represent subsets of the species’ realized niche in its native distributional range or if niche shifts are traceable" (Rödder et al., 2017, p. 4044)
"Univariate comparisons among bioclimatic conditions at native and invaded ranges revealed the invasive populations to be nested within the variable range of the native population." (Rödder et al., 2017, p. 4044)
"at the same time, invasive populations are well differentiated in multidimensional niche space as quantified via n- dimensional hypervolumes" (Rödder et al., 2017, p. 4044)
"Our results suggest varying degrees of realized niche shifts, which are mainly driven by temperature related variables." (Rödder et al., 2017, p. 4044)
"information on the degree and/or how fast species can adapt to environmental conditions beyond their realized niches (i.e., those climatic conditions existing populations are exposed to) is currently limited." (Rödder et al., 2017, p. 4045)
"Therefore, assessments of niche conservatism need to cover a broad range of temporal scales to detect under which circumstances niche shifts may occur and in which time frame they are possible (Peterson, 2011). If invasive species exhibit niche conservatism, predictive niche models can be used to determine where a certain species can become established (Wiens & Graham, 2005)." (Rödder et al., 2017, p. 4045)
"Grinnellian niches (i.e., environmental, nonconsumable niche axes operating on a macroecological scale) of species as well as their spatiotemporal dynamics (Guisan, Petitpierre, Broennimann, Daehler, & Kueffer, 2014; Pearman et al., 2008; Peterson, 2011)." (Rödder et al., 2017, p. 4045)
"Recent evidence proposes that climatic niches may not be as conserved as previously assumed and shifts of realized niches have been suggested for a number of invasive taxa including plants (e.g., Broennimann et al., 2007; Mitchell et al., 2006), insects (Fitzpatrick, Weltzin, Sanders, & Dunn, 2007; Medley, 2010), reptiles (Rödder & Lötters, 2009; Rödder, Schmidtlein, Veith, & Lötters, 2009), and amphibians (Tingley, Vallinoto, Sequeira, & Kearney, 2014)." (Rödder et al., 2017, p. 4045)
"these shifts are assumed to correspond to the release from dispersal barriers or biotic constraints rather than representing novel physiological adaptations (fundamental niche shifts; Rödder et al., 2009; Tingley et al., 2014)." (Rödder et al., 2017, p. 4045)
"Anthropogenic introduction pathways facilitate the spread of invasive species across biogeographical barriers and well beyond the species natural dispersal capacities (Wilson et al. 2009). This increased potential for large distance dispersal makes novel parts of the global environmental space colonizable, which may not be available in the native range." (Rödder et al., 2017, p. 4045)
"By comparing the environmental conditions of a species’ native range with the conditions at the area of planned introduction, climate matching quantifies the risk of establishment, for example, for amphibian species in the European Union (Kopecký et al., 2016), plant taxa in Australia (Kumschick & Richardson, 2013), or freshwater fishes worldwide (Bomford et al., 2010). As such climate matching approaches assume climate niches to be conserved during the invasion process, they exclude the possibility that the native range does not correspond to the entire set of conditions a species can live in with its standing genetic background or that evolutionary processes expand the fundamental niche." (Rödder et al., 2017, p. 4045)
"comparisons of experimentally quantified properties of its fundamental niche with its realized niches are possible by comparing environmental conditions as observed at species occurrences with physiological and behavioral information obtained from the literature." (Rödder et al., 2017, p. 4046)
"Although X. laevis predominantly colonizes areas with equivalent climatic conditions, populations have also been established in temperate regions characterized by an oceanic climate" (Rödder et al., 2017, p. 4046)
"Being invasive on multiple continents, including Europe, South, and North America, X. laevis represents a pertinent model organism to study realized niche dynamics during invasion processes." (Rödder et al., 2017, p. 4046)
"In this study, we assess whether the realized niches of invasive populations represent subsets of the realized niche in the species’ native distributional range or if niche shifts are detectable." (Rödder et al., 2017, p. 4046)
"If so, human-mediated dispersal may have facilitated the exploration of fundamental niche space beyond the species’ realized niche in its native range. Alternatively, niche shifts could indicate novel physiological adaptations." (Rödder et al., 2017, p. 4046)
"As the subsequent analyses require an orthogonal environmental space, we performed a principal component analysis (PCA) on the original bioclimatic predictors in Cran R (R Core Team, 2015) and retained principal components (PCs) with eigenvalues >1 (Table 1)." (Rödder et al., 2017, p. 4046)
"In order to quantify and assess potential niche shifts in the African clawed frog, we performed both univariate analyses using density profiles and multivariate hypervolume analyses (Blonder, 2016; Blonder, Lamanna, Violle, & Enquist, 2014) for the species’ native distributional range in southern Africa and all known invasive populations in Europe, South, and North America." (Rödder et al., 2017, p. 4046)
"For univariate comparisons, we computed density profiles using the relevant functions of the sm package for Cran R (Bowman & Azzalini, 2014). The multivariate hypervolume analysis is designed to capture the environmental niche of the target species (or its populations) following Hutchinson’s original idea of a Grinnellian niche space as an n- dimensional hypervolume (Blonder et al., 2014; Hutchinson, 1957). By computing the geometry and topology of the native and all invasive populations, hypervolumes can be quantified and compared in terms of shape, total volumes, niche positions, intersections, and unique parts (Blonder et al., 2014; Guisan et al., 2014). As environmental background an area defined by a circular buffer of 200 km surrounding all records from the species’ native range was used in order to capture the available climate space and hence the potential for pre-adaptation." (Rödder et al., 2017, p. 4046)
"The resulting maps indicate areas exhibiting environmental conditions which are part of the species’ niche volume (realized niche/realized distribution)." (Rödder et al., 2017, p. 4047)
"The PCA revealed four PCs with eigenvalues >1 (Table 1) accounting for 90.2% of the total variation. The first PC explained 38.4% of the total variance" (Rödder et al., 2017, p. 4047)
"Univariate comparisons among bioclimatic conditions at native and invaded ranges revealed that the invasive populations are well nested in the variable range of the native population in the mean annual temperature range, temperature seasonality, the maximum temperature of the warmest month, the minimum temperature of the coldest month, the temperature annual range, the mean temperature of the warmest quarter, the annual precipitation, and the precipitation of the wettest month and quarter." (Rödder et al., 2017, p. 4049)
"However, bioclimatic conditions in at least one invaded region exceed those in the native range in the annual mean temperature, isothermality, mean temperature of the wettest, driest, warmest and coldest quarter, precipitation of the driest month and quarter, precipitation seasonality, and precipitation of the warmest and coldest quarter (Figure 1)" (Rödder et al., 2017, p. 4049)
"For European populations, the left peak in the density plot for PC 1 corresponded to Portugal and France while the right corresponded to Sicily. Regarding the second and fourth PCs the first peak of the European populations referred to France while the second related to Portugal and Sicily. The first peak of the European populations of the third PC referred to Portugal and Sicily, while the second corresponded to France (Figure 2)." (Rödder et al., 2017, p. 4049)
"A comparison of the four dimensional hypervolumes of the native and all invaded ranges also revealed the European populations to form two clusters (Figure 3) one of which deviated strongly from the native range." (Rödder et al., 2017, p. 4049)
"Our results suggest some degree of realized niche shift between the native and all invaded regions, which is restricted to 10 of 19 bioclimatic variables and well visible in the density plots showing PC 2 and PC 4 (Figure 2)." (Rödder et al., 2017, p. 4051)
"we demonstrate that invasive populations of X. laevis are established well beyond the species’ multivariate realized" (Rödder et al., 2017, p. 4055)
"niche in southern Africa. This finding has important implications for both macroecological niche theory and practical aspects of risk assessments using climate matching." (Rödder et al., 2017, p. 4055)
"Although we cannot disentangle shifts in the fundamental niche from shifts in the realized niche alone, comparisons with natural history data including environmental tolerances and triggers for reproduction suggest that most niche shifts observed can be explained by realized niche shifts. One exception where this explanation is not evident is the invasive population in France. Here, further studies are required to test whether hybridization of different lineages has enabled a shift in the species’ fundamental niche." (Rödder et al., 2017, p. 4055)
| Tipo de elemento | Artículo de revista académica |
|---|---|
| Autor | Christine Lauzeral |
| Autor | Fabien Leprieur |
| Autor | Olivier Beauchard |
| Autor | Quiterie Duron |
| Autor | Thierry Oberdorff |
| Autor | Sébastien Brosse |
| Resumen | Aim We tested whether coarse-grained occurrence data can be used to detect climatic niche shifts between native and non-native ranges for a set of widely introduced freshwater fishes. Location World-wide. Methods We used a global database of freshwater fish occurrences at the river basin scale to identify native and non-native ranges for 18 of the most widely introduced fish species. We also examined climatic conditions within each river basin using fine-grained climate data. We combined this information to test whether climatic niche shifts have occurred between native and non-native ranges. We defined climatic niche shifts as instances where the ranges of a climatic variable within native and non-native basins exhibit zero overlap. Results We detected at least one climatic niche shift for each of the 18 studied species. However, we did not detect common patterns in the thermal preference or biogeographic origin of the non-native fish, hence suggesting a species-specific response. Main conclusions Coarse-grained occurrence data can be used to detect climatic niche shifts. They also enable the identification of the species experiencing niche shifts, although the mechanisms responsible for these shifts (e.g. local adaptation, dispersal limitation or physiological constraints) have yet to be determined. Furthermore, the coarse-grained approach, which highlights regions where climatic niche shifts have occurred, can be used to select specific river basins for more detailed, fine-grained studies. |
| Fecha | 2011 |
| Idioma | en |
| Título corto | Identifying climatic niche shifts using coarse-grained occurrence data |
| Catálogo de biblioteca | Wiley Online Library |
| URL | https://onlinelibrary.wiley.com/doi/abs/10.1111/j.1466-8238.2010.00611.x |
| Accedido | 24/11/2023 16:05:23 |
| Derechos | © 2010 Blackwell Publishing Ltd |
| Adicional | _eprint: https://onlinelibrary.wiley.com/doi/pdf/10.1111/j.1466-8238.2010.00611.x |
| Volumen | 20 |
| Páginas | 407-414 |
| Publicación | Global Ecology and Biogeography |
| DOI | 10.1111/j.1466-8238.2010.00611.x |
| Número | 3 |
| ISSN | 1466-8238 |
| Fecha de adición | 24/11/2023 16:05:23 |
| Modificado | 1/3/2024 10:09:58 |
"We tested whether coarse-grained occurrence data can be used to detect climatic niche shifts between native and non-native ranges for a set of widely introduced freshwater fishes." (Lauzeral et al., 2011, p. 407)
"We used a global database of freshwater fish occurrences at the river basin scale to identify native and non-native ranges for 18 of the most widely introduced fish species." (Lauzeral et al., 2011, p. 407)
"We defined climatic niche shifts as instances where the ranges of a climatic variable within native and non-native basins exhibit zero overlap." (Lauzeral et al., 2011, p. 407)
"Coarse-grained occurrence data can be used to detect climatic niche shifts." (Lauzeral et al., 2011, p. 407)
"Bioclimatic models of species distributions are increasingly being used to predict the establishment and spread of nonnative species over new areas, and to forecast range shifts in invasive species due to climate change (e.g. Thuiller et al., 2005; Jeschke & Strayer, 2008; Britton et al., 2010)." (Lauzeral et al., 2011, p. 407)
"These models are built under the assumption that species are in equilibrium with the climatic conditions encountered in their native ranges (i.e. their realized niche; Hutchinson, 1957) and that they tend to maintain ancestral ecological requirements in their non-native range (i.e. niche conservatism; see Jeschke & Strayer, 2008)." (Lauzeral et al., 2011, p. 407)
"This climate or environmental matching approach has been widely applied in invasion risk assessment (e.g. Bomford et al., 2009)." (Lauzeral et al., 2011, p. 407)
"Such approaches have recently been criticized (e.g. Broennimann & Guisan, 2008) because the spatial distribution of a species is not only constrained by current climate but also by historical and biotic factors such as barriers to dispersion, biotic interactions and stochastic events (Jiménez-Valverde et al., 2008)." (Lauzeral et al., 2011, p. 407)
"models were unable to predict the full extent of invasion (e.g. Broennimann et al., 2007; Loo et al., 2007; Medley, 2010)." (Lauzeral et al., 2011, p. 408)
"The reason is that species might be able to establish and spread into localities (or regions) that are climatically distinct from those encountered within the native range (i.e. a climatic niche shift)." (Lauzeral et al., 2011, p. 408)
"For all the species considered in this study, our results showed a niche shift between native and non-native ranges for at least one climatic variable." (Lauzeral et al., 2011, p. 411)
"The fact that all the considered species are experiencing a niche shift is probably linked to the fact that their realized niches actually don’t encompass their entire physiological and ecological ranges (Rosenfield, 2002)." (Lauzeral et al., 2011, p. 411)
"For example, the rainbow trout (and the brown trout) was largely introduced in New Zealand streams and rivers (Townsend, 1996) encountering a more stable climate, which explains a shift toward lower amplitude of temperature and lower coefficients of variation" (Lauzeral et al., 2011, p. 411)
"From a broader point of view, climate niche shifts have been attributed to three non-mutually exclusive mechanisms: (1) the rapid evolution of species when introduced to novel environments, which may allow them to advance beyond the limits of their climate distribution in their native range (Pearman et al., 2008);" (Lauzeral et al., 2011, p. 411)
"physiologically suitable environmental conditions in the non-native" (Lauzeral et al., 2011, p. 411)
"range which are not found in native habitats because of historical or geographical constraints on colonization (JiménezValverde et al., 2008; Leprieur et al., 2009a); and" (Lauzeral et al., 2011, p. 412)
"the lack of native predators, diseases and competitors (i.e. enemy release), which can result in higher tolerance to extreme biotic or abiotic conditions (Moyle & Light, 1996; Townsend, 1996)." (Lauzeral et al., 2011, p. 412)
"Our results suggest, however, that bioclimatic models are likely to underestimate the spread of colonizing species when they are trained or parameterized using environmental data from species native ranges, especially under projected climate change scenarios." (Lauzeral et al., 2011, p. 412)
"bioclimatic models might produce an incomplete picture of their colonization potential (e.g. Loo et al., 2007)." (Lauzeral et al., 2011, p. 412)
"he establishment of a species outside its native range is driven by multiple biotic and abiotic factors acting at different spatial resolutions (Lockwood et al., 2007)." (Lauzeral et al., 2011, p. 412)
"Bomford, M., Kraus, F., Barry, S.C. & Lawrence, E. (2009) Predicting establishment success for alien reptiles and amphibians: a role for climate matching. Biological Invasions, 11, 713724." (Lauzeral et al., 2011, p. 412)
"Hutchinson, G.E. (1957) Concluding remarks. Cold Spring Harbor Symposia on Quantitative Biology, 22, 415427." (Lauzeral et al., 2011, p. 413)
"Jeschke, J.M. & Strayer, D.L. (2008) Usefulness of bioclimatic models for studying climate change and invasive species. Annals of the New York Academy of Sciences, 1134, 1–24." (Lauzeral et al., 2011, p. 413)
"Jiménez-Valverde, A., Lobo, J.M. & Hortal, J. (2008) Not as good as they seem: the importance of concepts in species distribution modelling. Diversity and Distribution, 14, 885890." (Lauzeral et al., 2011, p. 413)
"Leprieur, F., Olden, J.D., Lek, S. & Brosse, S. (2009a) Contrasting patterns and mechanisms of spatial turnover for native and exotic freshwater fish in Europe. Journal of Biogeography, 36, 1899–1912" (Lauzeral et al., 2011, p. 413)
"Loo, S.E., Mac Nally, R. & Lake, P.S. (2007) Forecasting New Zealand mudsnail invasion range: model comparisons using native and invaded ranges. Ecological Applications, 17, 181189." (Lauzeral et al., 2011, p. 413)
"Moyle, P.B. & Light, T. (1996) Biological invasions of fresh water: empirical rules and assembly theory. Biological Conservation, 78, 149–161." (Lauzeral et al., 2011, p. 413)
"Pearman, P.B., Guisan, A., Broennimann, O. & Randin, C.F. (2008) Niche dynamics in space and time. Trends in Ecology and Evolution, 23, 149–158." (Lauzeral et al., 2011, p. 413)
"Townsend, C.R. (1996) Invasion biology and ecological impacts of brown trout Salmo trutta in New Zealand. Biological Conservation, 78, 13–22." (Lauzeral et al., 2011, p. 414)
| Tipo de elemento | Artículo de revista académica |
|---|---|
| Autor | Ryan D. Briscoe Runquist |
| Autor | Thomas A. Lake |
| Autor | David A. Moeller |
| Resumen | Aims Species distribution models (SDMs) are often used to forecast potential distributions of important invasive or rare species. However, situations where models could be the most valuable ecologically or economically, such as for predicting invasion risk, often pose the greatest challenges to SDM building. These challenges include non-equilibrium range expansion, low or uneven prevalence, and projecting distributions into environments that are non-analogous to the environments used for model building. Location Minnesota, USA. Taxon Cardamine impatiens (Narrowleaf Bittercress), Celastrus orbiculatus (Oriental Bittersweet), and Humulus japonicus (Japanese Hops). Methods We took a novel approach to build robust species distribution models of invasive species using occurrence-environment correlations between invasive species and co-occurring native community members. The correlations were obtained from a joint species distribution model (JSDM) of a densely sampled database of 10,336 MN plant communities from across the state of Minnesota, USA. Positively and negatively associated native species were incorporated into the model as surrogate presences and pseudoabsences (weighted by their environmental correlations) along with invasive species occurrences records (surrogate SDMs). Results Surrogate models performed better than traditional SDMs in predicting occurrences along the northern invasion margin (outside the training area). Both types of models had similarly high cross-validation metrics in the area of training. Surrogate models also predicted greater range expansion beyond the current geographic range. Main conclusions These results demonstrate that modelers can take advantage of detailed community data to develop SDMs that leverage surrogate native species as phytometers of environments beyond the current area of occupancy. The additional information in surrogate models generates highly effective predictions of invasive species along expanding range margins. |
| Fecha | 2021 |
| Idioma | en |
| Catálogo de biblioteca | Wiley Online Library |
| URL | https://onlinelibrary.wiley.com/doi/abs/10.1111/jbi.14105 |
| Accedido | 23/10/2025 10:21:24 |
| Derechos | © 2021 John Wiley & Sons Ltd |
| Adicional | _eprint: https://onlinelibrary.wiley.com/doi/pdf/10.1111/jbi.14105 |
| Volumen | 48 |
| Páginas | 1693-1705 |
| Publicación | Journal of Biogeography |
| DOI | 10.1111/jbi.14105 |
| Número | 7 |
| ISSN | 1365-2699 |
| Fecha de adición | 23/10/2025 10:21:24 |
| Modificado | 23/10/2025 10:22:00 |
"We took a novel approach to build robust species distribution models of invasive species using occurrence-environment correlations between invasive species and co-occurring native community members. The correlations were obtained from a joint species distribution model (JSDM) of a densely sampled database of 10,336 MN plant communities from across the state of Minnesota, USA. Positively and negatively associated native species were incorporated into the model as surrogate presences and pseudoabsences (weighted by their environmental correlations) along with invasive species occurrences records (surrogate SDMs)." (Briscoe Runquist et al., 2021, p. 1693)
| Tipo de elemento | Artículo de revista académica |
|---|---|
| Autor | Rujing Yang |
| Autor | Runyao Cao |
| Autor | Xiang Gong |
| Autor | Jianmeng Feng |
| Resumen | Niche and range shifts of invasive species are essential in assessing the risk of biological invasions and developing ecological niches and species distribution theories. Studies on invasive aquatic species' niche and range shifts have important implications for conserving aquatic invasive ecosystems. Here we used niche and range dynamic models to explore niche and range shifts of the golden apple snail Pomacea canaliculata, one of the world's most invasive aquatic species. The major factors responsible for P. canaliculata niche shifts in native and invaded regions were minimum temperature of the coldest month and precipitation in the warmest quarter. The niche and range of invasive P. canaliculata snails were not conserved relative to their native counterparts and had a broader niche and larger range, which are consistent with the findings that invasive P. canaliculata snails could survive in colder, hotter, drier, and wetter climates. Given that niche nonconservatism could result in range nonconservatism and small increases in niche breadth could induce large range expansions, niche shifts might provide a more sensitive indicator of invasion risk than range shifts. In contrast to most invasive species that show conservatism of their native niches, we observed high niche lability between the P. canaliculata snails in the native and invaded regions. Our findings indicate that the golden apple snail is a high-risk invasive aquatic species for its ability to aggressively proliferate through its rapid reproduction rate, fast growth as suggested by previous studies, and also for its highly labile niches and ranges, which facilitates adaptation to the climate of the introduced regions. |
| Fecha | JAN 2023 |
| Idioma | English |
| Catálogo de biblioteca | Web of Science Nextgen |
| URL | https://esajournals.onlinelibrary.wiley.com/doi/10.1002/ecs2.4391 |
| Accedido | 18/5/2023 16:39:04 |
| Adicional | Place: Hoboken Publisher: Wiley WOS:000911993800001 |
| Volumen | 14 |
| Páginas | e4391 |
| Publicación | Ecosphere |
| DOI | 10.1002/ecs2.4391 |
| Número | 1 |
| Abrev. de revista | Ecosphere |
| ISSN | 2150-8925 |
| Fecha de adición | 18/5/2023 16:39:04 |
| Modificado | 1/3/2024 10:11:00 |
"Niche and range shifts of invasive species are essential in assessing the risk of biological invasions and developing ecological niches and species distribution theories." (Yang et al., 2023, p. 1)
"Here we used niche and range dynamic models to explore niche and range shifts of the golden apple snail Pomacea canaliculata, one of the world’s most invasive aquatic species. The major factors responsible for P. canaliculata niche shifts in native and invaded regions were minimum temperature of the coldest month and precipitation in the warmest quarter." (Yang et al., 2023, p. 1)
"The niche and range of invasive P. canaliculata snails were not conserved relative to their native counterparts and had a broader niche and larger range, which are consistent with the findings that invasive P. canaliculata snails could survive in colder, hotter, drier, and wetter climates." (Yang et al., 2023, p. 1)
"Our findings indicate that the golden apple snail is a high-risk invasive aquatic species for its ability to aggressively proliferate through its rapid reproduction rate, fast growth as suggested by previous studies, and also for its highly labile niches and ranges, which facilitates adaptation to the climate of the introduced regions." (Yang et al., 2023, p. 1)
"Invasive species have been listed as one key factor responsible for the extinction of 261 animal and 39 plant species worldwide;" (Yang et al., 2023, p. 1)
"Freshwater accounts for only 0.01% of the world’swater but has more biodiversity per surface area than terrestrial and marine ecosystems (Dudgeon et al., 2006)." (Yang et al., 2023, p. 2)
"Among them, freshwater alien invasive mollusks constitute one of the most dangerous groups (Haubrock et al., 2022;Schuler et al., 2020)." (Yang et al., 2023, p. 2)
"The ecological niche describes the range of environmental conditions under which a particular species occurs. It provides one of the essential foundations for invasion ecology, possibly because it unfolds the links between distributions of alien invasive species (AIS), environmental variables, and the potential range shifts of AIS under the background of global climate change (Davies et al., 2019; MacDougall et al., 2009)." (Yang et al., 2023, p. 2)
"one of the key underlying assumptions of ENMs is the ecological niche conservatism hypothesis (Pearman et al., 2008; Petitpierre et al., 2012). In other words, if the ecological niche conservatism hypothesis was rejected, the prediction based on ENMs may be misleading and may impair the efficient management against the invasions of AIS." (Yang et al., 2023, p. 2)
"we obtained 7206 global occurrence records." (Yang et al., 2023, p. 3)
"we used all 44 native occurrence records and 44 randomly selected invasive occurrence records to examine niche and range shifts between invasive and native P. canaliculata. These processes were repeated five times, from which we drew similar conclusions relative to those derived from 742 and 44 occurrence records of the snail in invaded and native ranges. Therefore, sample size might not considerably modify our conclusions (Appendix S1)." (Yang et al., 2023, p. 3)
"Using occurrence records of the native and invasive P. canaliculata, spatial layers of climatic predictors, and an embedded R package of principal components analysis (PCA) in the COUE scheme, we conducted a PCA to reduce the probability of overprediction caused by strong collinearity among the predictors. The first two PCA axes were generated to represent the total niche space occupied by P. canaliculata in native and invaded regions. Then the total environmental space was divided into grid cells, indicating a unique vector of environmental conditions observed at one or more locations in geographical space (Broennimann et al., 2012; Petitpierre et al., 2012)." (Yang et al., 2023, p. 4)
"Kernel density functions were applied to estimate the smoothed density of presence records and available environments along the first two axes of the PCA. The total niche space could be divided into three components: niche unfilling (U), niche stability (S), and niche expansion (E). U indicates the niche space occupied only by the native golden apple snails; S represents the niche space occupied both by P. canaliculata in native and invaded regions. E is the niche space occupied only by P. canaliculata in invaded regions. The niche breadth of the native P. canaliculata (NB) is the sum of U and S. P. canaliculata niche breadth in invaded regions is the sum of E and S (IB). Breadth ratio (BR), representing the ratio of the niche breadth of the invasive P. canaliculata to that of the native golden apple snails," (Yang et al., 2023, p. 4)
"When BR > 1, it indicates that the niche breadth of the invasive P. canaliculata was wider than the native ones and vice versa; when BR = 1, the niche breadth of the invasive P. canaliculata equaled that of the native ones." (Yang et al., 2023, p. 4)
"Following a methodology proposed by Liu, Wolter, et al. (2020), when BR > 1 and SI < 0.5, the invasive P. canaliculata did not conserve the niche space inherited from their native counterparts and the niche conservatism hypothesis was rejected." (Yang et al., 2023, p. 4)
"The present study indicated high niche lability in the invasive golden apple snails, that is, relative to their native counterparts, P. canaliculata in the invaded regions had wider niche breadth and occupied different niche positions, and therefore niche spaces of P. canaliculata in the invaded regions were not conserved." (Yang et al., 2023, p. 6)
"well adapted to novel environmental conditions in the invaded regions." (Yang et al., 2023, p. 6)
"but their highly labile-niche-related adaptability to novel climatic conditions has likely also played an important role in its high invasion risk." (Yang et al., 2023, p. 6)
"the invasive P. canaliculata rejected the niche conservatism hypothesis, one of the key presumptions of ENMs." (Yang et al., 2023, p. 7)
"Our study found that the ecological niche and range of the invasive P. canaliculata are not conserved compared with its native ones." (Yang et al., 2023, p. 8)
"Torres et al. (2018) used niche conservatism information to prioritize hot spots of invasion by non-native freshwater invertebrates in New Zealand (including the golden apple snail as one of the 22 invasive freshwater invertebrates in that study), in which significant niche shifts were detected between P. canaliculata at global scale and those in New Zealand." (Yang et al., 2023, p. 8)
| Tipo de elemento | Artículo de revista académica |
|---|---|
| Autor | Olivier Broennimann |
| Autor | Matthew C. Fitzpatrick |
| Autor | Peter B. Pearman |
| Autor | Blaise Petitpierre |
| Autor | Loïc Pellissier |
| Autor | Nigel G. Yoccoz |
| Autor | Wilfried Thuiller |
| Autor | Marie-Josée Fortin |
| Autor | Christophe Randin |
| Autor | Niklaus E. Zimmermann |
| Autor | Catherine H. Graham |
| Autor | Antoine Guisan |
| Resumen | Aim Concerns over how global change will influence species distributions, in conjunction with increased emphasis on understanding niche dynamics in evolutionary and community contexts, highlight the growing need for robust methods to quantify niche differences between or within taxa. We propose a statistical framework to describe and compare environmental niches from occurrence and spatial environmental data. Location Europe, North America and South America. Methods The framework applies kernel smoothers to densities of species occurrence in gridded environmental space to calculate metrics of niche overlap and test hypotheses regarding niche conservatism. We use this framework and simulated species with pre-defined distributions and amounts of niche overlap to evaluate several ordination and species distribution modelling techniques for quantifying niche overlap. We illustrate the approach with data on two well-studied invasive species. Results We show that niche overlap can be accurately detected with the framework when variables driving the distributions are known. The method is robust to known and previously undocumented biases related to the dependence of species occurrences on the frequency of environmental conditions that occur across geographical space. The use of a kernel smoother makes the process of moving from geographical space to multivariate environmental space independent of both sampling effort and arbitrary choice of resolution in environmental space. However, the use of ordination and species distribution model techniques for selecting, combining and weighting variables on which niche overlap is calculated provide contrasting results. Main conclusions The framework meets the increasing need for robust methods to quantify niche differences. It is appropriate for studying niche differences between species, subspecies or intra-specific lineages that differ in their geographical distributions. Alternatively, it can be used to measure the degree to which the environmental niche of a species or intra-specific lineage has changed over time. |
| Fecha | 2012 |
| Idioma | en |
| Catálogo de biblioteca | Wiley Online Library |
| URL | https://onlinelibrary.wiley.com/doi/abs/10.1111/j.1466-8238.2011.00698.x |
| Accedido | 24/11/2023 16:18:54 |
| Derechos | © 2011 Blackwell Publishing Ltd |
| Adicional | _eprint: https://onlinelibrary.wiley.com/doi/pdf/10.1111/j.1466-8238.2011.00698.x |
| Volumen | 21 |
| Páginas | 481-497 |
| Publicación | Global Ecology and Biogeography |
| DOI | 10.1111/j.1466-8238.2011.00698.x |
| Número | 4 |
| ISSN | 1466-8238 |
| Fecha de adición | 24/11/2023 16:18:54 |
| Modificado | 1/3/2024 10:09:58 |
"We propose a statistical framework to describe and compare environmental niches from occurrence and spatial environmental data." (Broennimann et al., 2012, p. 481)
"The framework applies kernel smoothers to densities of species occurrence in gridded environmental space to calculate metrics of niche overlap and test hypotheses regarding niche conservatism. We use this framework and simulated species with pre-defined distributions and amounts of niche overlap to evaluate several ordination and species distribution modelling techniques for quantifying niche overlap. We illustrate the approach with data on two well-studied invasive species." (Broennimann et al., 2012, p. 481)
"The use of a kernel smoother makes the process of moving from geographical space to multivariate environmental space independent of both sampling effort and arbitrary choice of resolution in environmental space." (Broennimann et al., 2012, p. 481)
"It is appropriate for studying niche differences between species, subspecies or intra-specific lineages that differ in their geographical distributions. Alternatively, it can be used to measure the degree to which the environmental niche of a species or intra-specific lineage has changed over time." (Broennimann et al., 2012, p. 481)
"Factors that can constrain species distributions include abiotic gradients, such as climate, sunlight, topography and soils, and biotic interactions, such as the identity and abundance of facilitators (e.g. pollinators, seed dispersers), predators, parasites and competitors (Gaston, 2003)." (Broennimann et al., 2012, p. 482)
"The complementary concepts of the environmental niche (sensu Grinnell, 1917) and the trophic niche (sensu Elton, 1927) serve as a basis for assessing the ecological and biogeographical similarities and differences among species." (Broennimann et al., 2012, p. 482)
"A variety of approaches and metrics have been used to measure niche overlap (e.g. Horn, 1966; MacArthur & Levins, 1967; Schoener, 1970; Colwell & Futuyma, 1971; May & Arthur, 1972; Pianka, 1980). Generally, these methods date to the period in which competition was widely believed to be the primary mechanism structuring ecological communities and measures of niche overlap were developed to quantify differences due to competition (Chase & Leibold, 2003). More recently, research has elucidated how changing environmental conditions could affect future distributions of native species (e.g. Etterson & Shaw, 2001; Jump & Peñuelas, 2005) and invasive exotic species (e.g. Broennimann et al., 2007; Fitzpatrick et al., 2007; Steiner et al., 2008; Medley, 2010)." (Broennimann et al., 2012, p. 482)
"Assessing differences in the environmental niches of species requires identification and consideration of the factors that influence species distributions. In practice, distributions of species are often characterized using occurrence records (Graham et al., 2004)." (Broennimann et al., 2012, p. 482)
"recent studies indicate that biotic interactions may play an important role in defining the lower thermal boundaries of species distributions (e.g. Gotelli et al., 2010; Sunday et al., 2011)." (Broennimann et al., 2012, p. 482)
"Methods for quantifying the environmental niche and estimating niche differences typically rely on either ordination techniques (e.g. Thuiller et al., 2005a; Hof et al., 2010) or species distribution models (SDMs; Guisan & Thuiller, 2005) Ordination techniques allow for direct comparisons of speciesenvironment relationships in environmental space, and employ various maximization criteria to construct synthetic axes from associated environmental variables (Jongman et al., 1995)." (Broennimann et al., 2012, p. 482)
"Niche overlap is then estimated through the projection of those functions across a landscape (i.e. the overlap is calculated in geographical space)." (Broennimann et al., 2012, p. 482)
"Here, we present a new statistical framework to describe and compare niches in a gridded environmental space (i.e. where each cell corresponds to a unique set of environmental conditions). Within this framework, we quantify niche overlap using several ordination and SDM techniques and evaluate their performance." (Broennimann et al., 2012, p. 483)
"it accounts for biases introduced by spatial resolution (grid size)," (Broennimann et al., 2012, p. 483)
"makes optimal use of both geographical and environmental spaces" (Broennimann et al., 2012, p. 483)
"corrects observed occurrence densities for each region in light of the availability of environmental space" (Broennimann et al., 2012, p. 483)
"The framework involves three steps: (1) calculation of the density of occurrences and of environmental factors along the environmental axes of a multivariate analysis (2) measurement of niche overlap along the gradients of this multivariate analysis and (3) statistical tests of niche equivalency and similarity (cf. War ren et al., 2008). All the analyses are done in R (R Development Core Team, 2010) and scripts are available online in Appendix S1 in the Supporting Information." (Broennimann et al., 2012, p. 483)
"The environmental space is defined by the axes of the chosen analysis and is bounded by the minimum and maximum environmental values found across the entire study region." (Broennimann et al., 2012, p. 483)
"The environmental space is divided into a grid of r ¥ r cells(oravectorof r-values when the analysis considers only one axis). For our analyses we set the resolution r to 100. Each cell corresponds to a unique vector of environmental conditions vij present at one or more sites in geographical space, where ‘i’ and ‘j’ refer to the cell corresponding respectively to the ith and jth bins of the environmental variables." (Broennimann et al., 2012, p. 483)
"Since the number of occurrences is dependent on sampling strategy, sampled occurrences may not represent the entire distribution of the species or other taxon nor the entire range of suitable environmental conditions, resulting in underestimated densities in some cells and potentially large bias in measured niche overlap" (Broennimann et al., 2012, p. 483)
"We thus apply a kernel density function to determine the ‘smoothed’ density of occurrences in each cell in the environmental space for each dataset. We use the standard smoothing parameters used in most density estimation studies (Gaussian kernel with a standard bandwidth, which corresponds to 0.9 times the minimum of the standard deviation and the inter-quartile range of the data divided by 1.34 times the sample size to the negative one-fifth power; Silverman, 1986)." (Broennimann et al., 2012, p. 483)
"When no kernel density function is applied, the calculated overlap depends on the resolution r chosen for the gridded environmental space (Fig. S1a). Using smoothed densities from a kernel density function ensures that the measured overlap is independent of the resolution of the grid (Fig. S1b)." (Broennimann et al., 2012, p. 484)
"niche equivalency and similarity tests. The niche equivalency test determines whether niches of two entities in two geographical ranges are equivalent (i.e. whether the niche overlap is constant when randomly reallocating the occurrences of both entities among the two ranges)." (Broennimann et al., 2012, p. 484)
"niche similarity test" (Broennimann et al., 2012, p. 484)
"the niche similarity test addresses whether the environmental niche occupied in one range is more similar to the one occupied in the other range than would be expected by chance." (Broennimann et al., 2012, p. 484)
"Note that in some instances it may be difficult to define the extent of the study areas to be compared. When species occur on different continents, the choice can be straightforward and should consider the complete gradient of environmental space that the study species could reasonably encounter, including consideration of dispersal ability and major biogeographical barriers or transitions. When species occur in the same region or on an island, the environment can be the same for all species and therefore correcting for differences in the densities of environments is not necessary." (Broennimann et al., 2012, p. 484)
"Same as PCA-occ but calibrated on the entire environmental space of the two study areas, including species occurrences. When calibrating PCA-env on EU and NA ranges, differences in position along the principal components discriminate differences between the EU and NA environmental spaces whereas a calibration on the EU full environmental space maximizes the discrimination among this range only" (Broennimann et al., 2012, p. 485)
"PCA-env calibrated on both EU and NA ranges most accurately measures simulated niche overlap (Dabs:m = 0.054, Wilcoxon P > 0.05; Fig. 3b)." (Broennimann et al., 2012, p. 487)
"The only other predominantly unbiased method in this category is ecological niche factor analysis (ENFA), also calibrated on environmental data from both ranges." (Broennimann et al., 2012, p. 487)
"Scores of PCA-occ and MDS are significantly biased" (Broennimann et al., 2012, p. 487)
"Analyses of spotted knapweed and fire ant occurrences using PCA-env, the most accurate method in terms of niche overlap detection, show that for both species the niche in the native and invaded ranges overlap little" (Broennimann et al., 2012, p. 488)
"By using simulated entities with known amounts of niche overlap, our results show that niche overlap can be accurately detected within this framework (Fig. 2). Our method is appropriate for the study of between-species differences of niches (e.g. Thuiller et al., 2005a; Hof et al., 2010), as well as to compare subspecies or distinct populations of the same species that differ in their geographical distributions and which are therefore likely to experience different climatic conditions" (Broennimann et al., 2012, p. 488)
"Alternatively, when a record of the distribution of the taxa (and corresponding environment) through time exists, our approach can be used to answer the question of whether and to what degree environmental niches have changed through time (e.g. Pearman et al., 2008b; Varela et al., 2010)." (Broennimann et al., 2012, p. 488)
"Based on our results, ordinations seem to be more appropriate than SDMs for investigating niche overlap." (Broennimann et al., 2012, p. 491)
"Niche of spotted knapweed in climatic space – example of a principal component analysis (PCA-env). Panels (a) and (b) represent the niche of the species along the two first axes of the PCA in the European native (EU) and North American invaded range (NA), respectively. Grey shading shows the density of the occurrences of the species by cell. The solid and dashed contour lines illustrate, respectively, 100% and 50% of the available (background) environment. The arrows represent how the centre of the niche has changed between EU and NA." (Broennimann et al., 2012, p. 492)
"Of the ordination techniques we considered, PCA-env most accurately quantified the simulated level of niche overlap and did so without substantial bias." (Broennimann et al., 2012, p. 493)
"PCA-env is less prone to artificial maximization of ecologically irrelevant differences between distributions of the species." (Broennimann et al., 2012, p. 493)
| Tipo de elemento | Artículo de revista académica |
|---|---|
| Autor | Chunlong Liu |
| Autor | Christian Wolter |
| Autor | Weiwei Xian |
| Autor | Jonathan M. Jeschke |
| Resumen | The ecological niche is a key concept for elucidating patterns of species distributions and developing strategies for conserving biodiversity. However, recent times are seeing a widespread debate whether species niches are conserved across space and time (niche conservatism hypothesis). Biological invasions represent a unique opportunity to test this hypothesis in a short time frame at the global scale. We synthesized empirical findings for 434 invasive species from 86 studies to assess whether invasive species conserve their climatic niche between native and introduced ranges. Although the niche conservatism hypothesis was rejected in most studies, highly contrasting conclusions for the same species between and within studies suggest that the dichotomous conclusions of these studies were sensitive to techniques, assessment criteria, or author preferences. We performed a consistent quantitative analysis of the dynamics between native and introduced climatic niches reported by previous studies. Our results show there is very limited niche expansion between native and introduced ranges, and introduced niches occupy a position similar to native niches in the environmental space. These findings support the niche conservatism hypothesis overall. In particular, introduced niches were narrower for terrestrial animals, species introduced more recently, or species with more native occurrences. Niche similarity was lower for aquatic species, species introduced only intentionally or more recently, or species with fewer introduced occurrences. Climatic niche conservatism for invasive species not only increases our confidence in transferring ecological niche models to new ranges but also supports the use of niche models for forecasting species responses to changing climates. |
| Fecha | SEP 22 2020 |
| Idioma | English |
| Catálogo de biblioteca | Clarivate Analytics Web of Science |
| URL | https://www.webofscience.com/api/gateway?GWVersion=2&SrcAuth=DynamicDOIArticle&SrcApp=WOS&KeyAID=10.1073%2Fpnas.2004289117&DestApp=DOI&SrcAppSID=EUW1ED0CD4rFqlzG6fYVc88zgFLxu&SrcJTitle=PROCEEDINGS+OF+THE+NATIONAL+ACADEMY+OF+SCIENCES+OF+THE+UNITED+STATES+OF+AMERICA&DestDOIRegistrantName=Proceedings+of+the+National+Academy+of+Sciences |
| Accedido | 24/11/2023 16:04:31 |
| Adicional | Num Pages: 9 Place: Washington Publisher: Natl Acad Sciences Web of Science ID: WOS:000575887200005 |
| Volumen | 117 |
| Páginas | 23643-23651 |
| Publicación | PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA |
| DOI | 10.1073/pnas.2004289117 |
| Número | 38 |
| Abrev. de revista | Proc. Natl. Acad. Sci. U. S. A. |
| ISSN | 0027-8424, 1091-6490 |
| Fecha de adición | 24/11/2023 16:04:31 |
| Modificado | 24/11/2023 16:04:57 |
"The ecological niche is a key concept for elucidating patterns of species distributions and developing strategies for conserving biodiversity." (Liu et al., 2020, p. 23643)
"However, recent times are seeing a widespread debate whether species niches are conserved across space and time (niche conservatism hypothesis). Biological invasions represent a unique opportunity to test this hypothesis in a short time frame at the global scale." (Liu et al., 2020, p. 23643)
"to assess whether invasive species conserve their climatic niche between native and introduced ranges." (Liu et al., 2020, p. 23643)
"Our results show there is very limited niche expansion between native and introduced ranges, and introduced niches occupy a position similar to native niches in the environmental space." (Liu et al., 2020, p. 23643)
"Niche similarity was lower for aquatic species, species introduced only intentionally or more recently, or species with fewer introduced occurrences." (Liu et al., 2020, p. 23643)
"In the Anthropocene, species are shifting distributions in an unparalleled magnitude, and the ecological niche is a promising concept to develop better tools for conserving biodiversity and informing management strategies (1, 9)." (Liu et al., 2020, p. 23643)
"One key assumption for applying ENMs is that species niches change very slowly across space and time (i.e., niche conservatism), so that species occupy similar environmental conditions in new geographical ranges or time periods (12, 13)." (Liu et al., 2020, p. 23643)
"whereas niche shift has been reported in some reptiles (e.g., ref. 18), insects (e.g., ref. 19), aquatic invertebrates (e.g., ref. 20), freshwater fishes (e.g., ref. 21), and marine fishes (e.g., ref. 22)." (Liu et al., 2020, p. 23643)
"Understanding niche dynamics is pivotal to developing effective conservation strategies (2, 11, 23), and biological invasions represent a unique opportunity to study whether species conserve niches in a short time frame and how species respond to rapidly changing environments (18, 24)." (Liu et al., 2020, p. 23643)
"In the process of colonizing new habitats, invasive species either maintain, expand, or contract their niche space as a consequence of changes in the realized niche (i.e., the set of all biotic and abiotic conditions in which a species is observed in nature) and/or the fundamental niche (i.e., the set of all abiotic conditions under which a species is inferred to maintain positive population growth in the absence of biotic interactions) (12, 25). Changes in realized and fundamental niches are two nonmutually exclusive processes (12, 26)." (Liu et al., 2020, p. 23644)
"fundamental niche" (Liu et al., 2020, p. 23644)
"The evolution of environmental tolerance or the development of appropriate characters can facilitate species adaptation to exotic environmental conditions, causing changes in both realized and fundamental niches (2, 4)." (Liu et al., 2020, p. 23644)
"Guisan et al. (2) reviewed the techniques and classified them into three approaches. The ordination approach directly compares native and introduced niches in a two-dimensional (2D) environmental space constructed by two synthetic axes calibrated from associated environmental variables (33). The ENM approach assesses niche dynamics based on the predictability of ENMs that are calibrated using environmental and species distribution data in one range and transferred to the new range (7). The univariate approach estimates changes in niche breadth and position along an individual environmental variable across the landscape where species occur (14)." (Liu et al., 2020, p. 23644)
"Although no technique is considered most appropriate in all contexts (5), the COUE scheme (a unified terminology representing Centroid shift, Overlap, Unfilling, and Expansion) developed by Broennimann et al. (33) and improved by Petitpierre et al. (13) has become the gold standard to address niche conservatism (2, 23)" (Liu et al., 2020, p. 23644)
"To test the niche conservatism hypothesis as a process, the COUE scheme first constructs a 2D environmental space from two synthetic axes associated with all environmental variables using a principal component analysis (PCA). The global environmental space of species is then split into three components (Fig. 1): stability (S) represents the environmental space occupied in both native and introduced ranges, unfilling (U) represents the environmental space only occupied in the native range, but also available in the introduced range, and expansion (E) represents the environmental space only occupied in the" (Liu et al., 2020, p. 23644)
"introduced range, but also available in the native range (2, 13)." (Liu et al., 2020, p. 23644)
"Only expansion is suitable to characterize the magnitude of niche shift, because unfilling reflects the potential environmental condition that species may further colonize in the introduced range after a certain lag time" (Liu et al., 2020, p. 23644)
"Therefore, we performed a synthesis of studies that tested the niche conservatism hypothesis and assessed niche dynamics for invasive species (12). We focus on the realized niche, because all studies included here quantified the change between native and introduced niches using only distribution data compiled in the field. Among studies, the vast majority (91.9%) of predictor variables used for assessing species niche were climatic" (Liu et al., 2020, p. 23644)
"The niche conservatism hypothesis was rejected in most studies (62.8%) and for most species (59.5%)." (Liu et al., 2020, p. 23645)
"Among groups of organisms, the highest rates of rejection were found in aquatic species (78.6% of studies; 71.1% of species)" (Liu et al., 2020, p. 23645)
"Despite the lower magnitude, niche expansion still contributes to more than 10% of the global niche, implying that at least some invasive species can quickly occupy novel climatic conditions in a short time frame." (Liu et al., 2020, p. 23648)
"A. Guisan, B. Petitpierre, O. Broennimann, C. Daehler, C. Kueffer, Unifying niche shift studies: Insights from biological invasions. Trends Ecol. Evol. 29, 260–269 (2014)." (Liu et al., 2020, p. 23651)
"B. Petitpierre et al., Climatic niche shifts are rare among terrestrial plant invaders. Science 335, 1344–1348 (2012)." (Liu et al., 2020, p. 23651)
"U. Torres et al., Using niche conservatism information to prioritize hotspots of invasion by non-native freshwater invertebrates in New Zealand. Divers. Distrib. 24, 1802–1815 (2018)." (Liu et al., 2020, p. 23651)
"C. Lauzeral et al., Identifying climatic niche shifts using coarse-grained occurrence data: A test with non-native freshwater fish. Glob. Ecol. Biogeogr. 20, 407–414 (2011)." (Liu et al., 2020, p. 23651)
"O. Broennimann et al., Measuring ecological niche overlap from occurrence and spatial environmental data. Glob. Ecol. Biogeogr. 21, 481–497 (2012)." (Liu et al., 2020, p. 23651)
| Tipo de elemento | Artículo de revista académica |
|---|---|
| Autor | Achyut Kumar Banerjee |
| Autor | Nathan E. Harms |
| Autor | Abhishek Mukherjee |
| Autor | John F. Gaskin |
| Fecha | 03/2020 |
| Idioma | en |
| Catálogo de biblioteca | DOI.org (Crossref) |
| URL | http://link.springer.com/10.1007/s10750-020-04205-1 |
| Accedido | 23/10/2025 10:28:20 |
| Volumen | 847 |
| Páginas | 1505-1520 |
| Publicación | Hydrobiologia |
| DOI | 10.1007/s10750-020-04205-1 |
| Número | 6 |
| Abrev. de revista | Hydrobiologia |
| ISSN | 0018-8158, 1573-5117 |
| Fecha de adición | 23/10/2025 10:28:20 |
| Modificado | 23/10/2025 10:28:36 |
"Butomus umbellatus" (Banerjee et al., 2020, p. 1505) Junco
"Predicting the potential distribution of invaders is informative for pre-emptive policy or management decisions and identifying suitable areas for establishment of new populations." (Banerjee et al., 2020, p. 1505)
"a climatic niche shift has occurred between native and invasive ranges," (Banerjee et al., 2020, p. 1505)
"Environmental niche is highly conserved and stable (0.761) between ranges of B. umbellatus." (Banerjee et al., 2020, p. 1505)
"Environmental niche models (ENMs) have been effectively used to identify areas within introduced areas that are climatically suitable for establishment and spread of invasive species (e.g., Mainali et al., 2015; Shrestha et al., 2018). ENMs operate by modeling statistical relationships between known occurrences of a focal species and environmental covariates, with an assumption that climatic niche of the species is conserved between its native and invasive ranges (Peterson et al., 1999)." (Banerjee et al., 2020, p. 1506)
"However, recent studies found evidence that species can undergo climatic niche shift during the process of invasion leading to increased uncertainty when identifying atrisk areas (e.g., Atwater et al., 2018)." (Banerjee et al., 2020, p. 1506)
"whether the climatic niche of B. umbellatus has been conserved between native and invasive ranges," (Banerjee et al., 2020, p. 1506)
"whether B. umbellatus has already colonized suitable areas in the invaded range" (Banerjee et al., 2020, p. 1506)
"To address these objectives, we first characterized the realized climate niche of the species in its native (Europe and parts of Asia) and invasive (US and Canada) ranges and then used an ensemble modeling framework to identify areas in its invasive range (primarily North America) that are currently, or may become, susceptible to the establishment of B. umbellatus." (Banerjee et al., 2020, p. 1506)
"Given the long presence of the species in the USA, we expected that it already occupies most suitable areas in the invasive range. A" (Banerjee et al., 2020, p. 1506)
"A total of 3641 occurrence records were kept for native range and 1,753 records for invasive range" (Banerjee et al., 2020, p. 1508)
"Six bioclimatic variables, namely, annual mean temperature (Bio1), maximum temperature of the warmest month (Bio5), temperature annual range (Bio7), annual precipitation (Bio12), precipitation of driest month (Bio14), and precipitation seasonality (Bio15), were selected based on their non-collinearity and contribution to overall environmental variation." (Banerjee et al., 2020, p. 1508)
"Environmental niches of B. umbellatus in its native and invasive ranges were characterized by the first two axes of a Principal Component Analysis (PCA) conducted on the entire environmental space (i.e., chosen bioclimatic variables) of the two ranges. By applying a kernel density function, the occurrence points of both ranges were converted to smoothed densities of occurrences and plotted in the gridded environmental space." (Banerjee et al., 2020, p. 1508)
"Observed niche overlap between native and invasive ranges was estimated using Schoener’s index of niche breadth (D) and statistically evaluated using niche similarity test based on 95% confidence interval to test the null hypothesis of random expectation of niche similarity between native and invasive ranges (Broennimann et al., 2012). By overlapping environmental spaces of native and invasive ranges, we measured species niches by estimating unfilled niche of the native range (U), overlapping niche of both ranges (O), and expanded niche in the invaded range (E). These analyses were performed using the ecospat package version 3.0 (Broennimann et al., 2012)inR" (Banerjee et al., 2020, p. 1508)
"MESS analysis was computed using the package dismo (Hijmans et al., 2017) in R to compare the similarity of grid cells occupied by B. umbellatus in the invasive range with grid cells occupied by B. umbellatus in the native range, with respect to the set of selected bioclimatic variables. Grid cells with positive values were within the range of environmental values of the native niche, whereas grid cells with negative values indicated dissimilar environment for at least one variable (Broennimann et al., 2014)." (Banerjee et al., 2020, p. 1508)
"The hypothesis of the retained niche similarity was rejected (P = 0.039) indicating that realized climatic niches in the invasive range were more similar to that of the native range than would be expected at random. Low degree of niche overlap (D = 0.255) (Ro ̈dder & Engler, 2011) was observed between native and invasive ranges. High niche stability (0.761) along with low expansion (0.239) and unfilling (0.131) indicate that B. umbellatus has occupied most of its native niche in its invasive range (Fig. 2b)." (Banerjee et al., 2020, p. 1510)
"The MESS analysis revealed that a large part of the invasive range of B. umbellatus is climatically similar to the native range (positive values) which is in accordance with the distribution of the invasive occurrences (Fig. 3a)." (Banerjee et al., 2020, p. 1510)
| Tipo de elemento | Artículo de revista académica |
|---|---|
| Autor | Peter B. Pearman |
| Autor | Antoine Guisan |
| Autor | Olivier Broennimann |
| Autor | Christophe F. Randin |
| Fecha | 03/2008 |
| Idioma | en |
| Catálogo de biblioteca | DOI.org (Crossref) |
| URL | https://linkinghub.elsevier.com/retrieve/pii/S0169534708000372 |
| Accedido | 27/10/2025 10:06:18 |
| Derechos | https://www.elsevier.com/tdm/userlicense/1.0/ |
| Volumen | 23 |
| Páginas | 149-158 |
| Publicación | Trends in Ecology & Evolution |
| DOI | 10.1016/j.tree.2007.11.005 |
| Número | 3 |
| Abrev. de revista | Trends in Ecology & Evolution |
| ISSN | 01695347 |
| Fecha de adición | 27/10/2025 10:06:18 |
| Modificado | 27/10/2025 10:06:30 |
"Niche conservatism, the tendency of a species niche to remain unchanged over time, is often assumed when discussing, explaining or predicting biogeographical patterns." (Pearman et al., 2008, p. 149)
"The recent application of species distribution models (SDMs) and phylogenetic methods to analysis of niche characteristics has provided insight to niche dynamics." (Pearman et al., 2008, p. 149)
"The assumption that the niche of a species might remain unchanged [1–4], or change only slowly over hundreds to millions of years (i.e. niche conservatism; see Glossary) [5–7], currently influences the study of species distributions and has generated considerable debate [8]." (Pearman et al., 2008, p. 149)
"Hutchinson further distinguished between the fundamental environmental niche (see Glossary), which is genetically and physiologically determined, and the realized environmental niche (see Glossary), which includes, additionally, constraints arising from interspecific competition (Figure 1)" (Pearman et al., 2008, p. 149)
"The distinction between realized and fundamental niches is important for describing and understanding niche dynamics. This is because a niche-shift (see Glossary) could result from changing ecological processes influencing the realized niche as when, for example, an exotic species experiences release from natural enemies in the new environment. Alternatively, a niche-shift could involve both the realized and fundamental niches if, for example, the geneticallydetermined environmental tolerances of a species were to respond to selection during range expansion (Figure 1)." (Pearman et al., 2008, p. 149)
"Fundamental niche: the requirements of a species to maintain a positive population growth rate, disregarding biotic interactions." (Pearman et al., 2008, p. 149)
"Niche: the requirements of a species to maintain positive population growth rates (see fundamental and realized niche)." (Pearman et al., 2008, p. 149)
"Niche conservatism: the tendency for related species to have similar fundamental and/or realized niches; also, the tendency for the niche of a species to be little changed over time (i.e. to exhibit temporal autocorrelation)." (Pearman et al., 2008, p. 149)
"Niche shift: any change in the position of either the fundamental or realized (Hutchinsonian) niche of a species." (Pearman et al., 2008, p. 149)
"Realized niche: the portion of the fundamental niche in which a species has positive population growth rates, given the constraining effects of biological interactions, such as competition." (Pearman et al., 2008, p. 149)
"Given that the fundamental niche can only be estimated using costly manipulative experiments in the field and/or under controlled conditions, these estimates have only been conducted for a few species." (Pearman et al., 2008, p. 150)
"SDMs must be fitted with field observation data." (Pearman et al., 2008, p. 150)
"However, observed distributions of species include effects of biotic interactions and for this reason only provide information on the realized environmental niche." (Pearman et al., 2008, p. 150)
"The use of SDMs has been suggested as a tool with two particular applications: for identifying niche characteristics in natural systems and at spatial scales that make experimentation infeasible [10]; and for studying niche dynamics [8]." (Pearman et al., 2008, p. 151)
"Broennimann et al. [36] showed that rapid niche change was detectable when both native (European) and invaded (North American) ranges of an exotic plant were compared (Figure 2)." (Pearman et al., 2008, p. 155)
"In the case of biological invasions, a strong founder effect (see Glossary) followed by genetic drift, directional selection or hybridization might occur frequently, but sufficient studies to support this possibility have not yet been conducted. Clearly, studies that combine phylogenetic and ecological data show that closely related species can frequently diverge along one or more environmental gradients [11,14,39,49]." (Pearman et al., 2008, p. 156)
| Tipo de elemento | Artículo de revista académica |
|---|---|
| Autor | Kim A. Medley |
| Resumen | Aim Niche-based distribution models are often used to predict the spread of invasive species. These models assume niche conservation during invasion, but invasive species can have different requirements from populations in their native range for many reasons, including niche evolution. I used distribution modelling to investigate niche conservatism for the Asian tiger mosquito (Aedes albopictus Skuse) during its invasion of three continents. I also used this approach to predict areas at risk of invasion from propagules originating from invasive populations. Location Models were created for Southeast Asia, North and South America, and Europe. Methods I used maximum entropy (Maxent) to create distribution models using occurrence data and 18 environmental datasets. One native model was created for Southeast Asia; this model was projected onto North America, South America and Europe. Three models were created independently for the non-native ranges and projected onto the native range. Niche overlap between native and non-native predictions was evaluated by comparing probability surfaces between models using real data and random models generated using a permutation approach. Results The native model failed to predict an entire region of occurrences in South America, approximately 20% of occurrences in North America and nearly all Italian occurrences of A. albopictus. Non-native models poorly predict the native range, but predict additional areas at risk for invasion globally. Niche overlap metrics indicate that non-native distributions are more similar to the native niche than a random prediction, but they are not equivalent. Multivariate analyses support modelled differences in niche characteristics among continents, and reveal important variables explaining these differences. Main conclusions The niche of A. albopictus has shifted on invaded continents relative to its native range (Southeast Asia). Statistical comparisons reveal that the niche for introduced distributions is not equivalent to the native niche. Furthermore, reciprocal models highlight the importance of controlling bi-directional dispersal between native and non-native distributions. |
| Fecha | 2010 |
| Idioma | en |
| Catálogo de biblioteca | Wiley Online Library |
| URL | https://onlinelibrary.wiley.com/doi/abs/10.1111/j.1466-8238.2009.00497.x |
| Accedido | 24/11/2023 16:07:22 |
| Derechos | © 2009 Blackwell Publishing Ltd |
| Adicional | _eprint: https://onlinelibrary.wiley.com/doi/pdf/10.1111/j.1466-8238.2009.00497.x |
| Volumen | 19 |
| Páginas | 122-133 |
| Publicación | Global Ecology and Biogeography |
| DOI | 10.1111/j.1466-8238.2009.00497.x |
| Número | 1 |
| ISSN | 1466-8238 |
| Fecha de adición | 24/11/2023 16:07:22 |
| Modificado | 1/3/2024 10:09:58 |
"I used principal components analysis (PCA) to compare environmental data among distributions using pc-ord 5(MjMSoftware, Gleneden Beach, OR, USA). I extracted environmental data at each occurrence point in a GIS (Arcgis). To conform to the assumption of normality, I log-transformed Bio 3 and Bio 4 WORLDCLIM data and all relative humidity data from IWMI, and square-root transformed the mean number of frost days. To assess significance, I compared variation explained by each PCA axis to that obtained from 1000 PCAs conducted on matrices containing random values. A significant result indicates that PCA axes are significantly better than a random configuration (McCune & Grace, 2002). I used multi-response permutation procedures (MRPP) in pc-ord 5 to test the null hypothesis that environmental data at occurrence points in the native range for A. albopictus were no different from those data at occurrence points on other continents. MRPP is a non-parametric procedure that tests differences between groups, and is conceptually similar to ANOVA in that it assesses within-group similarity compared with among-group similarity (McCune & Grace, 2002). Finally, I correlated each environmental variable with scores from the most important PCA axes to evaluate the most important variable(s) in the PCA." (Medley, 2010, p. 125)
| Tipo de elemento | Artículo de revista académica |
|---|---|
| Autor | Alberto Jiménez‐Valverde |
| Autor | Jorge M. Lobo |
| Autor | Joaquín Hortal |
| Resumen | Aim Nowadays, large amounts of species distribution data and software for implementing different species distribution modelling methods are freely available through the internet. As a result, methodological works that analyse the relative performance of modelling techniques, as well as those that study which species characteristics affect their performance, are necessary. We discuss three important topics that must be kept in mind when modelling species distributions, namely (i) the distinction between potential and realized distribution, (ii) the effect of the relative occurrence area of the species on the results of the evaluation of model performance, and (iii) the general inaccuracy of the predictions of the realized distribution provided by species distribution modelling methods. |
| Fecha | 11/2008 |
| Idioma | en |
| Título corto | Not as good as they seem |
| Catálogo de biblioteca | DOI.org (Crossref) |
| URL | https://onlinelibrary.wiley.com/doi/10.1111/j.1472-4642.2008.00496.x |
| Accedido | 27/10/2025 10:00:40 |
| Derechos | http://onlinelibrary.wiley.com/termsAndConditions#vor |
| Volumen | 14 |
| Páginas | 885-890 |
| Publicación | Diversity and Distributions |
| DOI | 10.1111/j.1472-4642.2008.00496.x |
| Número | 6 |
| Abrev. de revista | Diversity and Distributions |
| ISSN | 1366-9516, 1472-4642 |
| Fecha de adición | 27/10/2025 10:00:40 |
| Modificado | 27/10/2025 10:01:12 |
| Tipo de elemento | Artículo de revista académica |
|---|---|
| Autor | Mary Bomford |
| Autor | Fred Kraus |
| Autor | Simon C. Barry |
| Autor | Emma Lawrence |
| Resumen | We examined data comprising 1,028 successful and 967 failed introduction records for 596 species of alien reptiles and amphibians around the world to test for factors influencing establishment success. We found significant variations between families and between genera. The number of jurisdictions where a species was introduced was a significant predictor of the probability the species had established in at least one jurisdiction. All species that had been introduced to more than 10 jurisdictions (34 species) had established at least one alien population. We also conducted more detailed quantitative comparisons for successful (69 species) and failed (116 species) introductions to three jurisdictions (Great Britain, California and Florida) to test for associations with climate match, geographic range size, and history of establishment success elsewhere. Relative to failed species, successful species had better climate matches between the jurisdiction where they were introduced and their geographic range elsewhere in the world. |
| Fecha | 3/2009 |
| Idioma | en |
| Título corto | Predicting establishment success for alien reptiles and amphibians |
| Catálogo de biblioteca | DOI.org (Crossref) |
| URL | http://link.springer.com/10.1007/s10530-008-9285-3 |
| Accedido | 27/10/2025 9:54:14 |
| Derechos | http://www.springer.com/tdm |
| Volumen | 11 |
| Páginas | 713-724 |
| Publicación | Biological Invasions |
| DOI | 10.1007/s10530-008-9285-3 |
| Número | 3 |
| Abrev. de revista | Biol Invasions |
| ISSN | 1387-3547, 1573-1464 |
| Fecha de adición | 27/10/2025 9:54:14 |
| Modificado | 27/10/2025 9:54:36 |
| Tipo de elemento | Artículo de revista académica |
|---|---|
| Autor | D. Rödder |
| Autor | J. O. Engler |
| Resumen | Aim Studies of environmental niche shift/niche conservatism that are based on species distribution modelling require a quantification of niche purity and potential overlap. Although various metrics have been proposed for this task, no comparisons of their performance are available yet that express the linearity of range shifts and error-proneness. Herein, we assess the performance of six niche overlap metrics using three sister pairs of plethodontid salamanders as well as artificial species to test for linearity of overlap curves, impacts of varying potential distribution sizes and study area sizes. Location North America, artificial environments. Methods Species distribution models for the salamanders were performed with Maxent, and artificial species were created in the R environment. Potential distributions of species with varying range sizes and extents of the study area were compared using the Bray–Curtis distance BC, Schoener's D, two different modifications of the Hellinger distance Imod, Icor, Pianka's O and Horn's R. Niche overlaps in ecological space were compared using linear discriminant analyses based on principal components. Results Simulations of niche overlaps revealed strong variations in the performance of the niche overlap metrics. In artificial species, BC and D performed best, followed by O, R and Icor, but the modified Hellinger distance Imod showed a nonlinear slope and a truncated range. Furthermore, the simulations suggest that, in proportionally small potential distributions on large grids, an inclusion of a high proportion of grid cells with low occurrence probabilities representing background noise may bias assessments of niche overlaps. Main conclusions Both the salamander examples and simulations suggest that Schoener's D and the Bray–Curtis distance BC are best suited to compute niche overlaps from potential distributions derived from species distribution models. However, like all analysed metrics, both D and BC are seriously affected by the inclusion of high numbers of grid cells where the species are probably absent, i.e. with low occurrence probabilities. Therefore, pre-processing to eliminate background noise in the potential distribution grids is highly recommended. |
| Fecha | 2011 |
| Idioma | en |
| Título corto | Quantitative metrics of overlaps in Grinnellian niches |
| Catálogo de biblioteca | Wiley Online Library |
| URL | https://onlinelibrary.wiley.com/doi/abs/10.1111/j.1466-8238.2011.00659.x |
| Accedido | 24/11/2023 16:20:21 |
| Derechos | © 2011 Blackwell Publishing Ltd |
| Adicional | _eprint: https://onlinelibrary.wiley.com/doi/pdf/10.1111/j.1466-8238.2011.00659.x |
| Volumen | 20 |
| Páginas | 915-927 |
| Publicación | Global Ecology and Biogeography |
| DOI | 10.1111/j.1466-8238.2011.00659.x |
| Número | 6 |
| ISSN | 1466-8238 |
| Fecha de adición | 24/11/2023 16:20:21 |
| Modificado | 28/10/2025 9:25:37 |
"Studies of environmental niche shift/niche conservatism that are based on species distribution modelling require a quantification of niche purity and potential overlap." (Rödder y Engler, 2011, p. 915)
"we assess the performance of six niche overlap metrics using three sister pairs of plethodontid salamanders as well as artificial species to test for linearity of overlap curves, impacts of varying potential distribution sizes and study area sizes." (Rödder y Engler, 2011, p. 915)
"Potential distributions of species with varying range sizes and extents of the study area were compared using the Bray–Curtis distance BC, Schoener’s D, two different modifications of the Hellinger distance Imod, Icor, Pianka’s O and Horn’s R." (Rödder y Engler, 2011, p. 915)
"Simulations of niche overlaps revealed strong variations in the performance of the niche overlap metrics." (Rödder y Engler, 2011, p. 915)
"Both the salamander examples and simulations suggest that Schoener’s D and the Bray–Curtis distance BC are best suited to compute niche overlaps from potential distributions derived from species distribution models." (Rödder y Engler, 2011, p. 915)
"Various methods have been proposed to study conservatism in Grinnellian niches (see Discussion). Hence, it is not surprising that results of studies analysing niche conservatism/ niche shift are mixed, often contradictory and currently highly debated (Pearman et al., 2008; Rödder & Lötters, 2010)." (Rödder y Engler, 2011, p. 916)
"our results imply that Schoener’s D and the BrayCurtis distance BC may be best suited to compute niche overlaps in G-space based on SDM results, wherein pre-processing with elimination of low occurrence probabilities is highly recommended to achieve unbiased results." (Rödder y Engler, 2011, p. 924)
"when interpreting niche overlaps, it should be assessed whether overlaps of fundamental niches, realized niches or something intermediate is being measured." (Rödder y Engler, 2011, p. 924)
"presence–absence methods are likely to capture a species’ realized niches by incorporating indirectly effects of both dispersal limitations and biotic interactions, presence-only and presence–pseudoabsence methods tend to characterize the species’ potential distribution." (Rödder y Engler, 2011, p. 924)
| Tipo de elemento | Artículo de revista académica |
|---|---|
| Autor | Reid Tingley |
| Autor | Marcelo Vallinoto |
| Autor | Fernando Sequeira |
| Autor | Michael R. Kearney |
| Resumen | Accurate forecasts of biological invasions are crucial for managing invasion risk but are hampered by niche shifts resulting from evolved environmental tolerances (fundamental niche shifts) or the presence of novel biotic and abiotic conditions in the invaded range (realized niche shifts). Distinguishing between these kinds of niche shifts is impossible with traditional, correlative approaches to invasion forecasts, which exclusively consider the realized niche. Here we overcome this challenge by combining a physiologically mechanistic model of the fundamental niche with correlative models based on the realized niche to study the global invasion of the cane toad Rhinella marina. We find strong evidence that the success of R. marina in Australia reflects a shift in the species’ realized niche, as opposed to evolutionary shifts in range-limiting traits. Our results demonstrate that R. marina does not fill its fundamental niche in its native South American range and that areas of niche unfilling coincide with the presence of a closely related species with which R. marina hybridizes. Conversely, in Australia, where coevolved taxa are absent, R. marina largely fills its fundamental niche in areas behind the invasion front. The general approach taken here of contrasting fundamental and realized niche models provides key insights into the role of biotic interactions in shaping range limits and can inform effective management strategies not only for invasive species but also for assisted colonization under climate change. |
| Fecha | 2014-07-15 |
| Catálogo de biblioteca | pnas.org (Atypon) |
| URL | https://www.pnas.org/doi/10.1073/pnas.1405766111 |
| Accedido | 24/11/2023 16:09:50 |
| Adicional | Publisher: Proceedings of the National Academy of Sciences |
| Volumen | 111 |
| Páginas | 10233-10238 |
| Publicación | Proceedings of the National Academy of Sciences |
| DOI | 10.1073/pnas.1405766111 |
| Número | 28 |
| Fecha de adición | 24/11/2023 16:09:50 |
| Modificado | 24/11/2023 16:10:10 |
"Accurate forecasts of biological invasions are crucial for managing invasion risk but are hampered by niche shifts resulting from evolved environmental tolerances (fundamental niche shifts) or the presence of novel biotic and abiotic conditions in the invaded range (realized niche shifts)." (Tingley et al., 2014, p. 10233)
"Here we overcome this challenge by combining a physiologically mechanistic model of the fundamental niche with correlative models based on the realized niche to study the global invasion of the cane toad Rhinella marina." (Tingley et al., 2014, p. 10233)
"Our results demonstrate that R. marina does not fill its fundamental niche in its native South American range and that areas of niche unfilling coincide with the presence of a closely related species with which R. marina hybridizes. Conversely, in Australia, where coevolved taxa are absent, R. marina largely fills its fundamental niche in areas behind the invasion front." (Tingley et al., 2014, p. 10233)
| Tipo de elemento | Artículo de revista académica |
|---|---|
| Autor | Antoine Guisan |
| Autor | Blaise Petitpierre |
| Autor | Olivier Broennimann |
| Autor | Curtis Daehler |
| Autor | Christoph Kueffer |
| Fecha | 05/2014 |
| Idioma | en |
| Título corto | Unifying niche shift studies |
| Catálogo de biblioteca | DOI.org (Crossref) |
| URL | https://linkinghub.elsevier.com/retrieve/pii/S0169534714000469 |
| Accedido | 27/10/2025 11:10:32 |
| Volumen | 29 |
| Páginas | 260-269 |
| Publicación | Trends in Ecology & Evolution |
| DOI | 10.1016/j.tree.2014.02.009 |
| Número | 5 |
| Abrev. de revista | Trends in Ecology & Evolution |
| ISSN | 01695347 |
| Fecha de adición | 27/10/2025 11:10:32 |
| Modificado | 27/10/2025 11:10:52 |
| Tipo de elemento | Artículo de revista académica |
|---|---|
| Autor | Jonathan M. Jeschke |
| Autor | David L. Strayer |
| Resumen | Bioclimatic models (also known as envelope models or, more broadly, ecological niche models or species distribution models) are used to predict geographic ranges of organisms as a function of climate. They are widely used to forecast range shifts of organisms due to climate change, predict the eventual ranges of invasive species, infer paleoclimate from data on species occurrences, and so forth. Several statistical techniques (including general linear models, general additive models, climate envelope models, classification and regression trees, and genetic algorithms) have been used in bioclimatic modeling. Recently developed techniques tend to perform better than older techniques, although it is unlikely that any single statistical approach will be optimal for all applications and species. Proponents of bioclimatic models have stressed their apparent predictive power, whereas opponents have identified the following unreasonable model assumptions: biotic interactions are unimportant in determining geographic ranges or are constant over space and time; the genetic and phenotypic composition of species is constant over space and time; and species are unlimited in their dispersal. In spite of these problematic assumptions, bioclimatic models often successfully fit present‐day ranges of species. Their ability to forecast the effects of climate change or the spread of invaders has rarely been tested adequately, however, and we urge researchers to tie the evaluation of bioclimatic models more closely to their intended uses. |
| Fecha | 06/2008 |
| Idioma | en |
| Catálogo de biblioteca | DOI.org (Crossref) |
| URL | https://nyaspubs.onlinelibrary.wiley.com/doi/10.1196/annals.1439.002 |
| Accedido | 27/10/2025 9:58:41 |
| Derechos | http://onlinelibrary.wiley.com/termsAndConditions#vor |
| Volumen | 1134 |
| Páginas | 1-24 |
| Publicación | Annals of the New York Academy of Sciences |
| DOI | 10.1196/annals.1439.002 |
| Número | 1 |
| Abrev. de revista | Annals of the New York Academy of Sciences |
| ISSN | 0077-8923, 1749-6632 |
| Fecha de adición | 27/10/2025 9:58:41 |
| Modificado | 27/10/2025 9:58:56 |
| Tipo de elemento | Artículo de revista académica |
|---|---|
| Autor | Ursula Torres |
| Autor | William Godsoe |
| Autor | Hannah L. Buckley |
| Autor | Matthew Parry |
| Autor | Audrey Lustig |
| Autor | Susan P. Worner |
| Editor | Brian Leung |
| Resumen | Aim: Identifying suitable areas for invasive species establishment is of critical importance for their early detection and rapid eradication. However, our ability to detect suitable areas is impeded by the tendency of species to shift their niche postinvasion. In this study, we (a) investigate the frequency of niche shift within invasive freshwater invertebrates and (b) use niche conservatism information to prioritize potential hotspots of invasion for non-n ative freshwater invertebrates in New Zealand. |
| Fecha | 12/2018 |
| Idioma | en |
| Catálogo de biblioteca | DOI.org (Crossref) |
| URL | https://onlinelibrary.wiley.com/doi/10.1111/ddi.12818 |
| Accedido | 27/10/2025 11:13:53 |
| Volumen | 24 |
| Páginas | 1802-1815 |
| Publicación | Diversity and Distributions |
| DOI | 10.1111/ddi.12818 |
| Número | 12 |
| Abrev. de revista | Diversity and Distributions |
| ISSN | 1366-9516, 1472-4642 |
| Fecha de adición | 27/10/2025 11:13:53 |
| Modificado | 27/10/2025 11:14:22 |
"Identifying suitable areas for invasive species establishment is of critical importance for their early detection and rapid eradication. However, our ability to detect suitable areas is impeded by the tendency of species to shift their niche postinvasion. In this study, we (a) investigate the frequency of niche shift within invasive freshwater invertebrates and (b) use niche conservatism information to prioritize potential hotspots of invasion for non-native freshwater invertebrates in New Zealand." (Torres et al., 2018, p. 1802)
"Using principal component analysis and species distribution models, we measured the degree of niche shift for each species and identified hotspots of invasion and niche conservatism described within biogeographic units in New Zealand." (Torres et al., 2018, p. 1802)
"Aquatic invertebrates show a high degree of niche shift. By combining climate suitability predictions and niche conservatism, we were able to prioritize invasion areas." (Torres et al., 2018, p. 1802)
"particularly for well-mixed water bodies such as river and streams where a high positive correlation has been found between air and water temperature (Caissie, 2006)." (Torres et al., 2018, p. 1805)
"We compared native and invasive niche for each species using the two-first components of a principal component analysis (PCA)." (Torres et al., 2018, p. 1805)
"To correct for sample bias and smooth gaps in the climatic niche, a probability density function (PDF) was constructed. The PDF was constructed using a smoothed kernel estimator around scores from the PCA for the environment occupied by the species and the geographic background (Broennimann et al., 2012). Following procedures established by Broennimann et al. (2012), a grid was placed over the entire environmental space to divide it into 100 by 100 cells, creating a unitless raster. The niche changes of each species were characterized using five metrics: niche overlap, niche stability, niche expansion, niche unfilling and centroid change (see Table 3 for definitions, Figure 1 for an illustration of the niche metrics). All metrics vary between 0 and 1; values close to 1 indicate a high overlap, stability, expansion, unfilling or centroid change. Niche equivalency and similarity tests were performed using the niche overlap metric following Broennimann et al. (2012) (Table 3). Two species (Dikerogammarus villosus and Hemimysis anomala) were excluded from the niche analysis as there were not enough occurrence records in their native range (less than five occurrence points)." (Torres et al., 2018, p. 1805)
"Following recommendations by Guisan et al. (2014) for accounting for climate availability, we also computed niche metrics in the most common environments between the invaded and native ranges by removing marginal climates (environments with low probability density). However, removing marginal climates could strongly influence the niche change metrics, so a sensitivity analysis, as recommended by Petitpierre et al. (2012), was carried out to determine whether the metric changes with the degree of removal of marginal climates." (Torres et al., 2018, p. 1805)
"the third species (Potamopyrgus antipodarum) is native to New Zealand." (Torres et al., 2018, p. 1808)
"a niche change of more than 10% was considered to be biologically significant" (Torres et al., 2018, p. 1808)
"When niche changes were measured within all environments (i.e., analogous and nonanalogous environments), 90% of the species showed more than 10% of niche expansion and all species showed more than 10% centroid change (Figure 2, Supporting information Appendix S11 for individual results)." (Torres et al., 2018, p. 1808)
"Niche unfilling was also prevalent, and 95% of the species had at least 10% of their native niche that remained to be filled in the invaded range." (Torres et al., 2018, p. 1808)
"However, some degree of similarity was observed between invasive and native niches where most of the species showed at least 40% of niche stability but interestingly, relatively low niche overlap." (Torres et al., 2018, p. 1808)
"Niches in the native and invaded ranges differed significantly for all species (niche equivalency test, Table 4)." (Torres et al., 2018, p. 1808)
"The high prevalence of niche unfilling in freshwater organisms might be due to the inability of these organisms to colonize all suitable habitats." (Torres et al., 2018, p. 1810)
"Similarly, Potamopyrgus antipodarum (Gray 1843, Hydrobiidae) native populations can show a high incidence of parasitic trematodes, whereas in the invasive range their incidence is very low (Alonso & Castro-Díez, 2012). Such examples illustrate that biotic exclusion in the native range could lead to a realized niche expansion in the invaded range. The realized niche may also change when natural dispersal barriers are transgressed. For example, island endemics such as P. antipodarum can occupy new environments in the invaded range because of preadaptation to those environments (Alexander & Edwards, 2010)." (Torres et al., 2018, p. 1811)