Aerial Surveys Give New Estimates for Orangutans in Sabah, Malaysia

• Marc Ancrenaz ,

  *To whom correspondence should be addressed. E-mail: hutan1@tm.net.my

  Affiliation Kinabatangan Orang-utan Conservation Project, Sandakan, Sabah, Malaysia

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• Olivier Gimenez,

  Affiliations CEFE/CNRS, équipe Biométrie et Biologie des populations, Montpellier, France, Institut de l'Ingénierie de l'Information de Santé, équipe TIMB, Faculté de Médecine, La Tronche Cedex, France

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• Laurentius Ambu,

  Affiliation Sabah Wildlife Department, Wisma Muis, Kota Kinabalu, Sabah, Malaysia

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• Karine Ancrenaz,

  Affiliation Kinabatangan Orang-utan Conservation Project, Sandakan, Sabah, Malaysia

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• Patrick Andau,

  Affiliation Sabah Wildlife Department, Wisma Muis, Kota Kinabalu, Sabah, Malaysia

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• Benoît Goossens,

  Affiliation Biodiversity and Ecological Processes Group, Cardiff School of Biosciences, Cardiff University, Cathays Park, Cardiff, United Kingdom

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• John Payne,

  Affiliation World Wildlife Fund-Malaysia, Kota Kinabalu, Sabah, Malaysia

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• Azri Sawang,

  Affiliation Kinabatangan Orang-utan Conservation Project, Sandakan, Sabah, Malaysia

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• Augustine Tuuga,

  Affiliation Sabah Wildlife Department, Wisma Muis, Kota Kinabalu, Sabah, Malaysia

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• Isabelle Lackman-Ancrenaz

  Affiliations Kinabatangan Orang-utan Conservation Project, Sandakan, Sabah, Malaysia, Pittsburgh Zoo, Pittsburgh, Pennsylvania, United States of America

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