Distribution of Pygmy Chimpanzees (Pan paniscus) in the Central Zaire Basin

Abstract

Distribution of bonobos (Pan paniscus) in the northern part of the range is estimated to be about 13,500 km2, which includes numerous patches they do not inhabit. Throughout this area, local environmental conditions differ little and bonobos may be said to be stenotopic, as distinguished from eurotopic Pan troglodytes. The bonobos’ discontinuous distribution and overall low density are attributed mainly to human hunting pressure. Further, recent large-scale forest exploitation in this area is considered a great threat to the survival of this rare pongid.