West African chimpanzees : status survey and conservation action plan
2003
Bakarr, Mohamed I. |
Boesch, Christophe |
Butynski, Thomas M. |
Kormos, Rebecca |
Wild chimpanzees are only found in tropical Africa, where their populations have declined by more than 66% in the last 30 years. This action plan focuses on one of the four chimpanzee subspecies, the western chimpanzee, which is one of the two subspecies most threatened with extinction.