%0 Journal Article
%9 ACL : Articles dans des revues avec comité de lecture répertoriées par l'AERES
%A Hugueny, Bernard
%T Age-area scaling of extinction debt within isolated terrestrial vertebrate assemblages
%D 2017
%L fdi:010069501
%G ENG
%J Ecology Letters
%@ 1461-023X
%K Amphibians ; birds ; conservation biology ; diversity dependence ; habitat fragmentation ; insular biogeography ; mammals ; relaxation ; reptiles
%M ISI:000399361500003
%N 5
%P 591-598
%R 10.1111/ele.12756
%U https://www.documentation.ird.fr/hor/fdi:010069501
%> https://www.documentation.ird.fr/intranet/publi/2017/05/010069501.pdf
%V 20
%W Horizon (IRD)
%X A new model of delayed species loss (extinction debt) within isolated communities is applied to a large data set of terrestrial vertebrate assemblages (n = 188) occupying habitat fragments or islands varying greatly in size and age. The model encapsulates previous approaches based on diversity-dependent (DD) extinction rates while allowing for a more flexible treatment of temporal dynamics. Three important results emerge. First, species loss rate slows down with the age of the isolate, a strong and general pattern largely unnoticed so far. Secondly, while being good candidates in the light of previous works, DD models fail to account for this pattern, a result that necessitates a search for other mechanisms. Thirdly, a simple diversity-independent model based on area (converted into population size) and age explains 97% of the variability in species loss rate and appears to be a promising predictive tool to handle extinction debt following habitat loss.
%$ 082 ; 020