期刊
PHILOSOPHICAL TRANSACTIONS OF THE ROYAL SOCIETY B-BIOLOGICAL SCIENCES
卷 366, 期 1578, 页码 2598-2610出版社
ROYAL SOC
DOI: 10.1098/rstb.2011.0116
关键词
IUCN Red List; extinction risk; threat category; conservation status; biodiversity indicators; conservation action
类别
资金
- Gordon and Betty Moore Foundation
- Moore Family Foundation
- Conservation International
- Critical Ecosystem Partnership Fund
- NatureServe
- Sapienza Universita di Roma
- Texas AM University
- Arizona State University
- Zoological Society of London
- University of Virginia
A recent complete assessment of the conservation status of 5487 mammal species demonstrated that at least one-fifth are at risk of extinction in the wild. We retrospectively identified genuine changes in extinction risk for mammals between 1996 and 2008 to calculate changes in the International Union for Conservation of Nature (IUCN) Red List Index (RLI). Species-level trends in the conservation status of mammalian diversity reveal that extinction risk in large-bodied species is increasing, and that the rate of deterioration has been most accelerated in the Indomalayan and Australasian realms. Expanding agriculture and hunting have been the main drivers of increased extinction risk in mammals. Site-based protection and management, legislation, and captive-breeding and reintroduction programmes have led to improvements in 24 species. We contextualize these changes, and explain why both deteriorations and improvements may be under-reported. Although this study highlights where conservation actions are leading to improvements, it fails to account for instances where conservation has prevented further deteriorations in the status of the world's mammals. The continued utility of the RLI is dependent on sustained investment to ensure repeated assessments of mammals over time and to facilitate future calculations of the RLI and measurement against global targets.
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