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Title: Primate resting postures : constraints by foregut fermentation?
Authors: Chua, Physilia Ying Shi
Matsuda, Ikki
Chapman, Colin A.
Mun Sha, John Chih
Clauss, Marcus
Keywords: Foregut Fermenter
Science::Biological sciences
Issue Date: 2017
Source: Matsuda, I., Chapman, C. A., Chua. P. Y. S., Mun Sha, J. C., & Clauss, M. (2017). Primate resting postures : constraints by foregut fermentation?. Physiological and Biochemical Zoology, 90(3), 383-391. doi:10.1086/691360
Series/Report no.: Physiological and Biochemical Zoology
Abstract: Although resting is one of the dominant behaviors of foregut-fermenting primates (i.e., colobines), their resting posture has rarely received attention. We hypothesize that colobines are more constrained in their resting position than hindgut-fermenting primates and that colobines assume a sitting resting position for specific reasons. To test this hypothesis, we followed two approaches. First, we observed resting positions in two captive individuals each of eight species and tested whether colobines rested in a sitting position more than other primates. Second, we collected literature data on free-ranging specimens of 31 species and again tested whether colobines rested in a sitting position more than other primates. Both approaches indicated that colobines spent more time in a sitting posture than other primates (73.0% vs. 23.2% in captivity and 83.0% vs. 60.9% in the wild, respectively). We hypothesize that the position of the digestive chamber and the necessity of frequently having to eructate digestion gases force colobines to take a sitting posture to avoid pressure on the thorax and respiratory organs.
ISSN: 1522-2152
DOI: 10.1086/691360
Rights: © 2017 The University of Chicago. All rights reserved. This paper was published in Physiological and Biochemical Zoology and is made available with permission of The University of Chicago.
Fulltext Permission: open
Fulltext Availability: With Fulltext
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