Document Detail


Sleeping site selection and presleep behavior in wild pigtailed macaques.
MedLine Citation:
PMID:  21898516     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
Several factors are likely to control sleeping site selection and presleep behavior in nonhuman primates, including predation risk and location of food resources. We examined the effects of these factors on the sleeping behavior of northern pigtailed macaques (Macaca leonina). While following a troop living in the surroundings of the Visitor Center of Khao Yai National Park (Thailand), we recorded the physical characteristics and location of each sleeping site, tree, the individuals' place in the tree, posture, and behavior. We collected data for 154 nights between April 2009 and November 2010. The monkeys preferred tall sleeping trees (20.9 ± SD 4.9 m) and high sleeping places (15.8 ± SD 4.3 m), which may be an antipredator strategy. The choice of sleeping trees close to the last (146.7 ± SD 167.9 m) or to the first (150.4 ± SD 113.0 m) feeding tree of the day may save energy and decrease predation risk when monkeys are searching for food. Similarly, the choice of sleeping sites close to human settlements eases the access to human food during periods of fruit scarcity. Finally, the temporal pattern of use of sleeping sites, with a preference for four of the sleeping sites but few reuses during consecutive nights, may be a trade-off between the need to have several sleeping sites (decreasing detection by predators and travel costs to feeding sites), and the need to sleep in well-known sites (guaranteeing a faster escape in case of predator attack). Am. J. Primatol. 73:1-9, 2011.© 2011 Wiley-Liss, Inc.
Authors:
Aurélie Albert; Tommaso Savini; Marie-Claude Huynen
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2011-9-6
Journal Detail:
Title:  American journal of primatology     Volume:  -     ISSN:  1098-2345     ISO Abbreviation:  -     Publication Date:  2011 Sep 
Date Detail:
Created Date:  2011-9-7     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  8108949     Medline TA:  Am J Primatol     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Copyright Information:
© 2011 Wiley-Liss, Inc.
Affiliation:
Department of Sciences and Gestion of Environment, Behavioral Biology Unit, University of Liège, Liège, Belgium. aurelie84.albert@gmail.com.
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