Abstract:
:Anthropogenic degradation of the world's ecosystems is leading to a widespread and accelerating loss of biodiversity. However, not all species respond equally to existing threats, raising the question: what makes a species more vulnerable to extinction? We propose that higher intraspecific variability may reduce the risk of extinction, as different individuals and populations within a species may respond differently to occurring threats. Supporting this prediction, our results show that mammalian species with more variable adult body masses, litter sizes, sexual maturity ages and population densities are less vulnerable to extinction. Our findings reveal the role of local variation among populations, particularly of large mammals, as a buffering mechanism against extinction, and emphasise the importance of considering trait variation in comparative analyses and conservation management.
journal_name
Ecol Lettjournal_title
Ecology lettersauthors
González-Suárez M,Revilla Edoi
10.1111/ele.12035subject
Has Abstractpub_date
2013-02-01 00:00:00pages
242-51issue
2eissn
1461-023Xissn
1461-0248journal_volume
16pub_type
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