1. ERAIFT The University of Kinshasa, DRC Kinshasa DRC
2. Ebo Forest Research Project Douala Cameroon
3. San Diego Zoo Wildlife Alliance San Diego California USA
4. Faculty of Natural Sciences The University of Stirling Scotland UK
5. Behavioural Biology Unit The University of Liege Belgium
6. The Royal Institute of Natural Sciences Belgium
7. Research Unit SPHERES The University of Liege Belgium
8. The University of Dschang Dschang Cameroon