1. Wildlife Conservation Society; 2300 Southern Boulevard Bronx NY U.S.A
2. Wildlife Conservation Society; 56, Avenue Colonel Ebeya, CroisementAv Kasavubu-Av Col Ebeya Kinsahasa-Gombe DR Congo
3. FAO; Viale delle Terme di Caracalla 00153 Rome Italy
4. CIRAD; Avenue Agropolis 34000 Montpellier France
5. Center for International Forestry Research (CIFOR); Jalan Cifor Situ Gede Bogor 16115 Indonesia
6. Division of Biology and Conservation Ecology; School of Science and the Environment; Manchester Metropolitan University; Manchester M1 5GD U.K