1. Princeton School of Public and International Affairs Princeton University Robertson Hall Princeton New Jersey 08544 USA
2. Department of Fish and Wildlife Conservation Virginia Polytechnic Institute and State University 310 West Campus Drive Blacksburg Virginia 24061 USA
3. Núcleo de Estudos e Pesquisas das Cidades da Amazônia Brasileira Universidade Federal do Amazonas Avenida Rodrigo Otávio 6200 Coroado Campus Universitário/Setor Norte/ICHL/NEPECAB Manaus AM 69080‐900 Brazil
4. School of Forest, Fisheries and Geomatics Sciences University of Florida McCarty Hall C Gainesville Florida 32011 USA
5. Departamento de Ecologia Universidade Federal do Rio Grande do Norte Avenida Senador Salgado Filho 3000 Natal RN 59078‐970 Brazil
6. Department of Ecology and Evolutionary Biology Princeton University Princeton New Jersey 08544 USA