1. UMR 5174 Laboratoire Evolution et Diversité Biologique; CNRS & Université Paul Sabatier; Toulouse 31062 France
2. Departamento de Ecología de la Biodiversidad; Instituto de Ecología; Universidad Nacional Autónoma de México; Apartado Postal 1354, Hermosillo Sonora C.P. 83000 México
3. Makeni Savanna Research project; Box 50323 Lusaka Zambia
4. Department of Global Ecology; Carnegie Institution for Science; Stanford 94305 CA USA
5. Universidade de São Paulo; Rua do Matão Travessa 14 n 321 Cidade Universitaria Sao Paulo 05508-090 Brazil
6. Departamento de Ciencias Forestales; Universidad Nacional de Colombia; Calle 59A No. 63-20 Medellín Colombia
7. Department of Ecology and Natural Resource Management; Norwegian University of Life Sciences; P.O. Box 5003 Ås 1432 Norway
8. Department of Environmental Dynamics; National Institute for Research in the Amazon - INPA; Av. André Araújo No. 2936 Manaus AM CEP 69 060-000 Brazil
9. School of Geography; University of Leeds; Leeds LS2 9JT UK
10. Forest Department; Food and Agriculture Organisation of the United Nations; Viale delle Terme di Caracalla Rome 00153 Italy
11. Smithsonian Tropical Research Institute; Balboa, Ancon Panama Republic of Panama
12. School of GeoSciences; University of Edinburgh; Crew Building Edinburgh EH9 3JN UK
13. IRET; Libreville BP 13354 Gabon
14. Instituto Tecnológico de Costa Rica; Cartago 159-7050 Costa Rica
15. UMR AMAP; IRD; Montpellier 34000 France
16. Carrera 5 No 14-05; Cota Cundinamarca Colombia
17. CIRAD; UPR BSEF; Montpellier F-34398 France