The Gibbons pp 265-275 | Cite as

Seasonal Home Range Use and Defendability in White-Handed Gibbons (Hylobates lar) in Khao Yai National Park, Thailand

  • Thad Q. Bartlett
Part of the Developments in Primatology: Progress and Prospects book series (DIPR)


Gibbons are unique among hominoids in that they form small, socially monogamous groups that defend stable home ranges against encroachment by neighboring conspecifics. The evolution of this combination of traits, and the role of foraging ecology in its emergence, has long been the subject of speculation and research (Leighton 1987; Chivers 2001; Bartlett 2007). Early models focused on the highly frugivorous diets of gibbons and the consequent inability of adult females to share feeding resources. Social and reproductive monogamy, it was argued, resulted from the inability of males to defend areas large enough to support more than one adult female and her offspring. While males of monogamous species might willingly associate with multiple females (and experience increased reproductive success as a result), the distribution of females into separate territories was thought to limit a male’s ability to defend access to more than one female, leaving males no other option but...


Home Range Home Range Size Fruit Abundance Home Range Area Daily Path Length 
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I thank Susan Lappan for the invitation to contribute to this volume and for her helpful comments on the manuscript. My research in Thailand would not have been possible without the support and guidance of Warren Brockelman. Funding for this work was provided by Fulbright, National Science Foundation, Boise Fund, Sigma Xi, The American Society of Primatologists, and Washington University. I am grateful to the Royal Thai Forest Department, National Parks Division and the National Research Council of Thailand for permitting me to work in Khao Yai National Park.


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Copyright information

© Springer Science+Business Media, LLC 2009

Authors and Affiliations

  1. 1.Department of AnthropologyUniversity of Texas at San Antonio, One UTSA CircleSan AntonioUSA

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