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The chimpanzee nest quantified: morphology and ecology of arboreal sleeping platforms within the dry habitat site of Toro-Semliki Wildlife Reserve, Uganda

Parasitology of five primates in Mahale Mountains National Park, Tanzania

Boundary zone between northern and southern pig-tailed macaques and their morphological differences

Muscle dimensions in the Japanese macaque hand

Variability of tail length in hybrids of the Japanese macaque (Macaca fuscata) and the Taiwanese macaque (Macaca cyclopis)

Peter M. Kappeler, David P. Watts (eds.): Long-term field studies of primates : Springer, Berlin, 2012, 460 pp

The Primates 2012 Most-Cited Paper Award is conferred upon Dr. Claudia Kasper

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Acknowledgements

Book Received

Primates : Volume 53, Issue 3, July 2012

Primates : Volume 53, Issue 2, April 2012

Primates : Volume 53, Issue 1, January 2012

The chimpanzee nest quantified: morphology and ecology of arboreal sleeping platforms within the dry habitat site of Toro-Semliki Wildlife Reserve, Uganda

Content Provider	Springer Nature Link
Author	Samson, David R.
Copyright Year	2012
Abstract	The nightly construction of a sleeping platform (SP) or “nest” is widely regarded as a universal behavior among great apes, yet SP structural morphology has been incompletely quantified to date. This is in part due to the inherent difficulties of gathering empirical data on arboreally sited SPs. I gathered quantitative structural data on SPs (n = 65) at the Toro-Semliki Wildlife Reserve from May to June 2008 and from August 2010 to January 2011. I measured SP length (semi-major axis length), width (semi-minor axis length), radii (length from the surface center to the rim edge 45° from the axis), depth (width of the concavity from the surface center to the parallel rim), and thickness (ventral center to the dorsal underside of the SP). SP complexity was defined with a scored index. SP complexity was found to be correlated with SP circumference, surface area, mass, proportion of soft leafy material to hard woody material, number of frame support branches used in its construction, and other measures that are argued to index “comfort.” In addition, the height of the tree canopy above the SP was negatively correlated with SP complexity. Greater complexity (and therefore stability) is argued to maintain SP integrity, stability and restraint in the face of greater wind speeds, thereby reducing the probability of falls. Given the observation that males site SPs lower than females (Fruth and Hohmann, Ethology 94:113–126, 1994; Brownlow et al., Am J Primatol 55:49–55, 2001), and that SP diameters were greater for SPs sited low in the canopy at Semliki, it is inferred that more massive males benefit from lower climbing expenses and greater stability. These data support Baldwin and colleagues’ (Primates 22:474–486, 1981) hypothesis that the principal advantage of SPs over open-branch sleeping sites is the greater stability required by large-bodied great apes.
Starting Page	357
Ending Page	364
Page Count	8
File Format	PDF
ISSN	00328332
Journal	Primates
Volume Number	53
Issue Number	4
e-ISSN	16107365
Language	English
Publisher	Springer Japan
Publisher Date	2012-05-04
Publisher Place	Japan
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Chimpanzee Nest Sleep Morphology Evolution Methodology Structure Animal Ecology Zoology Evolutionary Biology Behavioural Sciences
Content Type	Text
Resource Type	Article
Subject	Animal Science and Zoology

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The chimpanzee nest quantified: morphology and ecology of arboreal sleeping platforms within the dry habitat site of Toro-Semliki Wildlife Reserve, Uganda.

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