Call Cultures in Orang-Utans?

• Serge A. Wich ,

  * E-mail: sergewich1@yahoo.com

  Affiliations Anthropological Institute and Museum, University of Zurich, Zurich, Switzerland, Sumatran Orangutan Conservation Programme (PanEco-YEL), Medan, Sumatra, Indonesia

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• Michael Krützen ,

  Contributed equally to this work with: Michael Krützen, Adriano R. Lameira

  Affiliation Anthropological Institute and Museum, University of Zurich, Zurich, Switzerland

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• Adriano R. Lameira ,

  Contributed equally to this work with: Michael Krützen, Adriano R. Lameira

  Affiliation Behavioural Biology, Utrecht University, Utrecht, The Netherlands

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• Alexander Nater,

  Affiliation Anthropological Institute and Museum, University of Zurich, Zurich, Switzerland

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• Natasha Arora,

  Affiliation Anthropological Institute and Museum, University of Zurich, Zurich, Switzerland

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• Meredith L. Bastian,

  Affiliation Department of Anthropology, Boston University, Boston, United States of America

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• Ellen Meulman,

  Affiliation Anthropological Institute and Museum, University of Zurich, Zurich, Switzerland

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• Helen C. Morrogh-Bernard,

  Affiliation University of Cambridge, Wildlife Research Group, Cambridge, United Kingdom

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• S. Suci Utami Atmoko,

  Affiliation Fakultas Biologi, Universitas Nasional, Jakarta, Indonesia

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• Joko Pamungkas,

  Affiliation Primate Research Centre, Bogor Agricultural University, Bogor, Indonesia

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• Dyah Perwitasari-Farajallah,

  Affiliation Primate Research Centre, Bogor Agricultural University, Bogor, Indonesia

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• Madeleine E. Hardus,

  Affiliation Institute for Biodiversity and Ecosystem Dynamics, University of Amsterdam, Amsterdam, The Netherlands

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• Maria van Noordwijk,

  Affiliation Anthropological Institute and Museum, University of Zurich, Zurich, Switzerland

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• Carel P. van Schaik

  Affiliation Anthropological Institute and Museum, University of Zurich, Zurich, Switzerland

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