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OrangutansGeographic Variation in Behavioral Ecology and Conservation$
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Serge A. Wich, S Suci Utami Atmoko, Tatang Mitra Setia, and Carel P. van Schaik

Print publication date: 2008

Print ISBN-13: 9780199213276

Published to Oxford Scholarship Online: May 2009

DOI: 10.1093/acprof:oso/9780199213276.001.0001

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Orangutan positional behavior

Orangutan positional behavior

Interspecific variation and ecological correlates

(p.33) CHAPTER 3 Orangutan positional behavior

Susannah K. S. Thorpe

Robin H. Crompton

Oxford University Press

Successful foraging, reproductive, and predator avoidance strategies in orangutans rely on their ability to navigate the complex three-dimensional habitat of tropical rainforest canopy. This chapter assimilates a broad collection of published studies, complemented by unpublished results to present a comprehensive interspecific comparison of the locomotion and postures employed by wild orangutans and the supports they use to travel and feed in the canopy. Despite methodological differences between studies, results imply that, while P. abelii and P. p. morio have the capacity to perform the same gross range of positional behaviors, they actually exhibit quantitatively different positional behavior repertoires and show distinct patterns of association between positional behavior and support use. However further research is necessary to establish whether the largest differences in positional behavior exist at the species- or habitat-level.

Keywords:   orangutan, positional behavior, locomotion, posture, support use

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