Limb use and preferences in wild orang-utans during feeding and locomotor behavior

Peters, Helga H. and Rogers, Lesley J. (2008) Limb use and preferences in wild orang-utans during feeding and locomotor behavior. American Journal of Primatology, 70 3: 261-270. doi:10.1002/ajp.20483

Author Peters, Helga H.
Rogers, Lesley J.
Title Limb use and preferences in wild orang-utans during feeding and locomotor behavior
Journal name American Journal of Primatology   Check publisher's open access policy
ISSN 0275-2565
Publication date 2008
Year available 2008
Sub-type Article (original research)
DOI 10.1002/ajp.20483
Open Access Status
Volume 70
Issue 3
Start page 261
End page 270
Total pages 10
Place of publication Hoboken, NJ United States
Publisher John Wiley and Sons, Inc.
Collection year 2008
Language eng
Formatted abstract
Limited data are available on hemispheric lateralization in wild orang-utans. There has been only one previous investigation of limb preferences in wild orang-utans [Yeager, 1991]. We examined the lateralization of limb use in wild Bornean orang-utans (Pongo pygmaeus pygmaeus) with the aim of providing more insight into possible hemispheric specialization in wild nonhuman primates. Here, we report in detail on limb use and preference during arboreal locomotion between trees (N = 6) and on feeding involving one limb (N = 8) and two limbs (N = 6). We distinguished between locomotion between overlapping trees (Type I) and locomotion involving gap crossing (Types II and III). For locomotion Type I, the six orang-utans showed no leading hand preference, however for locomotion Types II and III, all six showed significant right-hand preferences. All eight orang-utans showed individual hand preferences for reaching for food, but no significant group bias was found. Limb preferences for feeding involving two limbs (hand-hand or hand-foot) differed between juveniles (right hand-right foot), adult females (left hand-right hand) and adult males (right hand-left hand). Although not present for all tasks, the results indicate that orang-utans do show evidence of hemispheric specialization, but the use of the hands is not under a strong lateralized hemispheric control and is adaptable.
Keyword Feeding
Hand preferences
Limb use
Wild orang utans
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status Non-UQ
Additional Notes For ERA

Document type: Journal Article
Sub-type: Article (original research)
Collection: Queensland Brain Institute Publications
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Citation counts: TR Web of Science Citation Count  Cited 10 times in Thomson Reuters Web of Science Article | Citations
Scopus Citation Count Cited 10 times in Scopus Article | Citations
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Created: Fri, 24 Oct 2014, 16:20:03 EST by Debra McMurtrie on behalf of Queensland Brain Institute