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Development of independence: Sumatran and Bornean orangutans compared

Maria A. van Noordwijk, Simone E.B. Sauren, Nuzuar Abulani Ahbam, Helen C. Morrogh-Bernard, S. Suci Utami Atmoko, and Carel P. van Schaik

in Orangutans: Geographic Variation in Behavioral Ecology and Conservation

Published in print:
2008
Published Online:
May 2009
ISBN:
9780199213276
eISBN:
9780191707568
Item type:
chapter
Publisher:
Oxford University Press
DOI:
10.1093/acprof:oso/9780199213276.003.0012
Subject:
Biology, Animal Biology, Biodiversity / Conservation Biology

Among known mammals, orangutans have the longest period of dependence and exclusive association between mother and offspring before a younger sibling is born. Comparison of available data on wild ... More


A description of the orangutan's vocal and sound repertoire, with a focus on geographic variation

Madeleine E. Hardus, Adriano R. Lameira, Ian Singleton, Helen C. Morrogh-Bernard, Cheryl D. Knott, Marc Ancrenaz, S. Suci Utami Atmoko, and Serge A. Wich

in Orangutans: Geographic Variation in Behavioral Ecology and Conservation

Published in print:
2008
Published Online:
May 2009
ISBN:
9780199213276
eISBN:
9780191707568
Item type:
chapter
Publisher:
Oxford University Press
DOI:
10.1093/acprof:oso/9780199213276.003.0004
Subject:
Biology, Animal Biology, Biodiversity / Conservation Biology

This chapter provides an overview of the sounds and vocalizations that Sumatran and Bornean orangutans produce. The current data set indicates that there are at least 32 different orangutan sounds ... More


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