About the Authors

Stuart H. M. Butchart

stuart.butchart@birdlife.org

Affiliations BirdLife International, Cambridge, United Kingdom, United Nations Environment Programme World Conservation Monitoring Centre, Cambridge, United Kingdom

Jörn P. W. Scharlemann

Affiliation United Nations Environment Programme World Conservation Monitoring Centre, Cambridge, United Kingdom

Mike I. Evans

Affiliation BirdLife International, Cambridge, United Kingdom

Suhel Quader

Current address: Nature Conservation Foundation, Mysore, India

Affiliation National Centre for Biological Sciences, Tata Institute of Fundamental Research, Bangalore, India

Salvatore Aricò

Affiliation United Nations Educational, Scientific and Cultural Organization, Paris, France

Julius Arinaitwe

Affiliation BirdLife International Africa Partnership Secretariat, Nairobi, Kenya

Mark Balman

Affiliation BirdLife International, Cambridge, United Kingdom

Leon A. Bennun

Affiliation BirdLife International, Cambridge, United Kingdom

Bastian Bertzky

Affiliation United Nations Environment Programme World Conservation Monitoring Centre, Cambridge, United Kingdom

Charles Besançon

Affiliation United Nations Environment Programme World Conservation Monitoring Centre, Cambridge, United Kingdom

Timothy M. Boucher

Affiliation The Nature Conservancy, Arlington, Virginia, United States of America

Thomas M. Brooks

Affiliations NatureServe, Arlington, Virginia, United States of America, World Agroforestry Center, International Center for Research in Agroforestry, University of the Philippines, Los Baños, Philippines, School of Geography and Environmental Studies, University of Tasmania, Hobart, Australia

Ian J. Burfield

Affiliation BirdLife International, Cambridge, United Kingdom

Neil D. Burgess

Affiliations Center for Macroecology, Evolution and Climate, Department of Biology, University of Copenhagen, Copenhagen, Denmark, Conservation Science Program, World Wildlife Fund, Washington, District of Columbia, United States of America

Simba Chan

Affiliation BirdLife International Asia Regional Office, Tokyo, Japan

Rob P. Clay

Affiliation BirdLife International Americas Secretariat, Quito, Ecuador

Mike J. Crosby

Affiliation BirdLife International, Cambridge, United Kingdom

Nicholas C. Davidson

Affiliation Secretariat of the Ramsar Convention on Wetlands, Gland, Switzerland

Naamal De Silva

Affiliation Conservation International, Arlington, Virginia, United States of America

Christian Devenish

Current address: Division of Biology and Conservation Ecology, School of Science and the Environment, Manchester Metropolitan University, Manchester, United Kingdom

Affiliation BirdLife International Americas Secretariat, Quito, Ecuador

Guy C. L. Dutson

Affiliation Birds Australia, Carlton, Australia

David F. Día z Fernández

Affiliation Aves y Conservación, Quito, Ecuador

Lincoln D. C. Fishpool

Affiliation BirdLife International, Cambridge, United Kingdom

Claire Fitzgerald

Affiliation United Nations Environment Programme World Conservation Monitoring Centre, Cambridge, United Kingdom

Matt Foster

Affiliation National Fish and Wildlife Foundation, Washington, District of Columbia, United States of America

Melanie F. Heath

Affiliation BirdLife International, Cambridge, United Kingdom

Marc Hockings

Affiliation School of Geography, Planning and Environmental Management, University of Queensland, Brisbane, Australia

Michael Hoffmann

Affiliations United Nations Environment Programme World Conservation Monitoring Centre, Cambridge, United Kingdom, Conservation International, Arlington, Virginia, United States of America, Species Survival Commission, International Union for Conservation of Nature, Gland, Switzerland

David Knox

Affiliation The Wharton School, University of Pennsylvania, Philadelphia, Pennsylvania, United States of America

Frank W. Larsen

Affiliation Conservation International, Arlington, Virginia, United States of America

John F. Lamoreux

Affiliation National Fish and Wildlife Foundation, Washington, District of Columbia, United States of America

Colby Loucks

Affiliation Conservation Science Program, World Wildlife Fund, Washington, District of Columbia, United States of America

Ian May

Affiliation BirdLife International, Cambridge, United Kingdom

James Millett

Affiliations BirdLife International Pacific Partnership Secretariat, Suva, Fiji, Royal Society for the Protection of Birds, Sandy, United Kingdom

Dominic Molloy

Affiliation Royal Society for the Protection of Birds, Sandy, United Kingdom

Paul Morling

Affiliation Royal Society for the Protection of Birds, Sandy, United Kingdom

Mike Parr

Affiliation American Bird Conservancy, Washington, District of Columbia, United States of America

Taylor H. Ricketts

Affiliation The Gund Institute for Ecological Economics, University of Vermont, Burlington, Vermont, United States of America

Nathalie Seddon

Affiliation Department of Zoology, Oxford, United Kingdom

Benjamin Skolnik

Affiliation American Bird Conservancy, Washington, District of Columbia, United States of America

Simon N. Stuart

Affiliations United Nations Environment Programme World Conservation Monitoring Centre, Cambridge, United Kingdom, Conservation International, Arlington, Virginia, United States of America, Species Survival Commission, International Union for Conservation of Nature, Gland, Switzerland, Department of Biology and Biochemistry, University of Bath, Bath, United Kingdom, Al Ain Wildlife Park and Resort, Abu Dhabi, United Arab Emirates

Amy Upgren

Affiliation Conservation International, Arlington, Virginia, United States of America

Stephen Woodley

Affiliation Natural Resources Branch, Parks Canada, Hull, Quebec, Canada

Competing Interests

The authors have the following competing interest. One author, S.N. Stuart, is affiliated with the Al Ain Wildlife Park and Resort. This does not alter the authors' adherence to all the PLoS ONE policies on sharing data and materials, as detailed online in the guide for authors.

Author Contributions

Analyzed the data: JPWS SQ SHMB CB BB NDB DM PM ME MB IM CF NS. Wrote the paper: SHMB. Developed IBA data: JA LAB IJB SC RPC MJC CD GCLD DFDF LDCF JM. Developed AZE data: T. Brooks T. Boucher SHMB NDB MF M. Hoffmann DK JFL FL CL MP THR BS AU NDS. Interpretation of results: NCD M. Heath SW. Contributed to interpretation of results: SA M. Hockings SS. Contributed to the design of Red List Index analyses & developed AZE data: T. Brooks.