Archives for orangutan


Orangutan ranging in Kutai National Park

Research Report
Anne E. Russon
York Univesity Anne E. Russon In spring 2012 The Leakey Foundation awarded Anne E. Russon a grant for her long-term study of behavior in east Bornean orangutans (Pongo pygmaeus morio) at the Bendili study area (Kutai National Park). This project focused specifically on orangutan ranging, feeding ecology and spatial cognition. Researchers have studied orangutans in the Bendili and nearby… more »

Research Report: The function(s) of a long-distance signal: the orangutan long call

Research Report
Brigitte Spillmann, PhD Candidate Anthropological Institute and Museum, University of Zurich Photo:  Mure Wipfli Brigitte Spillmann was awarded a Leakey Foundation research grant in spring 2010 for her PhD project focusing on the functions of the long call, the long distance signal of the flanged male orangutan. Long distance signaling in widely dispersed, semi-solitary species is often used to more »