1. Department of Primate Behavior and Evolution Max Planck Institute for Evolutionary Anthropology Leipzig Germany
2. Uganda Wildlife Authority Kampala Uganda
3. Mbeli Bai Study, Wildlife Conservation Society Congo Program Brazzaville Democratic Republic of the Congo
4. World Wide Fund for Nature Berlin Germany
5. Department of Anthropology, Center for the Advanced Study of Human Paleobiology The George Washington University Washington DC USA
6. Berggorilla Regenwald Direkthilfe Hoevelhof Germany
7. Nouabalé‐Ndoki Foundation Brazzaville Democratic Republic of the Congo
8. Dian Fossey Gorilla Fund International Atlanta Georgia USA