MatiasGravelGuilhaumonEtAl2014
Référence
Matias, M.G., Gravel, D., Guilhaumon, F., Desjardins-Proulx, P., Loreau, M., Munkemuller, T., Mouquet, N. (2014) Estimates of species extinctions from species-area relationships strongly depend on ecological context. Ecography, 37(5):431-442. (Scopus )
Résumé
Species-area (SAR) and endemics-area (EAR) relationships are amongst the most common methods used to forecast species loss resulting from habitat loss. One critical, albeit often ignored, limitation of these area-based estimates is their disregard of the ecological context that shapes species distributions. In this study, we estimate species loss using a spatially explicit mechanistic simulation model to evaluate three important aspects of ecological context: coexistence mechanisms (e.g. species sorting, competition-colonization tradeoffs and neutral dynamics), spatial distribution of environmental conditions, and spatial pattern of habitat loss. We found that 1) area-based estimates of extinctions are sensitive to coexistence mechanisms as well as to the pattern of environmental heterogeneity; 2) there is a strong interaction between coexistence mechanisms and the pattern of habitat loss; 3) SARs always yield higher estimates of species loss than do EARs; and 4) SARs and EARs consistently underestimate the realized species loss. Our results highlight the need to integrate ecological mechanisms in area-estimates of species loss. © 2013 The Authors.
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@ARTICLE { MatiasGravelGuilhaumonEtAl2014,
AUTHOR = { Matias, M.G. and Gravel, D. and Guilhaumon, F. and Desjardins-Proulx, P. and Loreau, M. and Munkemuller, T. and Mouquet, N. },
TITLE = { Estimates of species extinctions from species-area relationships strongly depend on ecological context },
JOURNAL = { Ecography },
YEAR = { 2014 },
VOLUME = { 37 },
PAGES = { 431-442 },
NUMBER = { 5 },
NOTE = { cited By 6 },
ABSTRACT = { Species-area (SAR) and endemics-area (EAR) relationships are amongst the most common methods used to forecast species loss resulting from habitat loss. One critical, albeit often ignored, limitation of these area-based estimates is their disregard of the ecological context that shapes species distributions. In this study, we estimate species loss using a spatially explicit mechanistic simulation model to evaluate three important aspects of ecological context: coexistence mechanisms (e.g. species sorting, competition-colonization tradeoffs and neutral dynamics), spatial distribution of environmental conditions, and spatial pattern of habitat loss. We found that 1) area-based estimates of extinctions are sensitive to coexistence mechanisms as well as to the pattern of environmental heterogeneity; 2) there is a strong interaction between coexistence mechanisms and the pattern of habitat loss; 3) SARs always yield higher estimates of species loss than do EARs; and 4) SARs and EARs consistently underestimate the realized species loss. Our results highlight the need to integrate ecological mechanisms in area-estimates of species loss. © 2013 The Authors. },
DOCUMENT_TYPE = { Article },
DOI = { 10.1111/j.1600-0587.2013.00448.x },
SOURCE = { Scopus },
URL = { http://www.scopus.com/inward/record.url?eid=2-s2.0-84899954738&partnerID=40&md5=b3694e8a0ba6a92af97ed4446fbc68cb },
}