1. Cambridge University and University of Cape Town
2. BirdLife International
3. Netherlands Environmental Assessment Agency (RIVM)
4. Convention on Biological Diversity (CBD) Secretariat
5. University of East Anglia
6. Royal Botanic Gardens, Kew
7. Princeton University
8. Equilibrium
9. The Nature Conservancy
10. Royal Society for the Protection of Birds and Cambridge University
11. Royal Society for the Protection of Birds
12. United Nations Environment Programme (UNEP) World Conservation Monitoring Centre
13. Conservation International
14. University of Kent
15. Heinz Center for Science, Economics and the Environment
16. Zoological Society of London
17. Oxford University
18. European Commission (EC) Joint Research Center
19. Royal Society for the Protection of Birds (twice)
20. Wildlife Conservation Society
21. World Wildlife Fund, USA
22. Instituto Venezolano de Investigaciones Científicas
23. Diversitas and Fridtjof Nansen Institute
24. Stellenbosch University
25. Cambridge University.
26. The views expressed in this article are the authors' and do not necessarily reflect the views of the organizations to which they are affiliated.