期刊
ACTA OECOLOGICA-INTERNATIONAL JOURNAL OF ECOLOGY
卷 40, 期 -, 页码 27-30出版社
ELSEVIER
DOI: 10.1016/j.actao.2012.02.006
关键词
Island biogeography; Conservation biogeography; Habitat loss; Power function; SAR; Species extinction
类别
The species-area relationship (SAR), i.e. the increase in species number with area, has been repeatedly used to predict species extinction, at both local and global scales, with habitat reduction. He and Hubbell (Nature, 2011; 473, 368-371), however, argued that the function that relates species loss with decreasing habitat area cannot be simply obtained reversing the species-area accumulation curve. Using a statistically more appropriate curve based on endemics (EAR), they concluded that the SAR overestimates species extinction. Although we agree that SARs and EARs have different shapes, this does not imply that SARs overestimate species extinction. Empirical evidence suggests that SARs do not overestimate, but underestimate species extinction by habitat loss and fragmentation. We discuss various examples taken from recent literature to show that SARs underestimate species extinction. (C) 2012 Elsevier Masson SAS. All rights reserved.
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