%0 Journal Article
%9 ACL : Articles dans des revues avec comité de lecture répertoriées par l'AERES
%A Matias, M. G.
%A Gravel, D.
%A Guilhaumon, François
%A Desjardins-Proulx, P.
%A Loreau, M.
%A Munkemuller, T.
%A Mouquet, N.
%T Estimates of species extinctions from species-area relationships strongly depend on ecological context
%D 2014
%L fdi:010062058
%G ENG
%J Ecography
%@ 0906-7590
%M ISI:000335400600003
%N 5
%P 431-442
%R 10.1111/j.1600-0587.2013.00448.x
%U https://www.documentation.ird.fr/hor/fdi:010062058
%> https://www.documentation.ird.fr/intranet/publi/2014/06/010062058.pdf
%V 37
%W Horizon (IRD)
%X 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.
%$ 082 ; 020 ; 021