About the Authors

Marcel Cardillo

To whom correspondence should be addressed. E-mail: m.cardillo@imperial.ac.uk

Affiliations Department of Biological Sciences, Imperial College London, Ascot, United Kingdom, Institute of Zoology, Zoological Society of London, London, United Kingdom

Andy Purvis

Affiliation Department of Biological Sciences, Imperial College London, Ascot, United Kingdom

Wes Sechrest

Affiliation IUCN Global Mammal Assessment, Species Survival Commission of IUCN and Conservation International Center for Applied Biodiversity Science Biodiversity Assessment Unit, Center for Applied Biodiversity, Conservation International, Washington, District of Columbia, United States of America

John L Gittleman

Affiliation Department of Biology, University of Virginia, Charlottesville, Virginia, United States of America

Jon Bielby

Affiliation Institute of Zoology, Zoological Society of London, London, United Kingdom

Georgina M Mace

Affiliation Institute of Zoology, Zoological Society of London, London, United Kingdom

Competing Interests

The authors have declared that no conflicts of interest exist.

Author Contributions

MC, AP, JLG, JB, and GMM conceived and designed the study. MC, WS, JLG, and JB contributed data. MC analyzed the data. JLG and JB contributed reagents/materials/analysis tools. MC, AP, WS, and JLG wrote the paper.