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Orangutan ranging in Kutai National Park

Research Report

Anne E. Russon
York Univesity

Anne E. Russon 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 Mentoko study areas several times over the last 44 years.  During this time their habitat has undergone drastic changes, including commercial logging incursions, severe droughts and massive forest fires. In the report below Russon describes some of her team’s findings, including how intra-site comparisons of activity budgets and travel distances provide insight into how these orangutans coped with this series of habitat changes.

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I [name], of [city, state ZIP], bequeath the sum of $[ ] or [ ] percent of my estate to L.S.B. Leakey Foundation for Research Related to Man’s Origins, Behavior & Survival, (dba The Leakey Foundation), a nonprofit organization with a business address of 1003B O’Reilly Avenue, San Francisco, CA 94129 and a tax identification number 95-2536475 for its unrestricted use and purpose.

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