1. Department of Ecology and Evolutionary Biology; Brown University; 34 Olive Street, Box G-B225 Providence RI 02912 U.S.A
2. The Earth Institute; Columbia University; New York NY 10027 U.S.A
3. Department of Ecology, Evolution and Environmental Biology; Columbia University; New York NY 10027 U.S.A
4. PNG Forest Research Institute; PO Box 314 Lae Morobe Province Papua New Guinea
5. The New Guinea Binatang Research Center; PO Box 604 Madang Papua New Guinea
6. Griffith University; 170 Kessels Road Nathan QLD 4111 Australia
7. Department of Forest Resources; University of Minnesota; 1530 Cleveland Ave. N St. Paul MN 55108 U.S.A