1. Department of Biology, Georgetown University, Washington, DC 20057
2. Department of Geography and Environmental Systems, University of Maryland Baltimore County, Baltimore, MD 21250
3. Cary Institute of Ecosystem Studies, Millbrook, NY 12545
4. Migratory Bird Center, Smithsonian’s National Zoo and Conservation Biology Institute, Washington, DC 20013
5. The Earth Commons Institute, Department of Biology, McCourt School of Public Policy, Georgetown University, Washington, DC 20057