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Author Russon, A.E.; Handayani, D.P.; Kuncoro, P.; Ferisa, A.
Title Orangutan leaf-carrying for nest-building: toward unraveling cultural processes Type Journal Article
Year 2007 Publication Animal Cognition Abbreviated Journal Anim. Cogn.
Volume 10 Issue 2 Pages 189-202
Keywords Animals; Ecosystem; Female; Indonesia; Male; *Nesting Behavior; Pongo pygmaeus/*physiology; *Trees
Abstract We report an empirical study on leaf-carrying, a newly discovered nest-building technique that involves collecting nest materials before reaching the nest site. We assessed whether leaf-carrying by rehabilitant orangutans on Kaja Island, Central Kalimantan, owes to cultural influences. Findings derive from ca 600 h observational data on nesting skills and nesting associations in Kaja's 42 resident rehabilitants, which yielded 355 nests and 125 leaf-carrying cases by 34 rehabilitants. Regional contrasts with 14 other communities (7 rehabilitant, 7 wild) indicated cultural influences on leaf-carrying on Kaja. Association data showed exceptional social learning opportunities for leaf-carrying on Kaja, with residents taking differential advantage of these opportunities as a function of development, experience, and social position. Juvenile males with basic nesting skills were most influenced by social input. Most (27) leaf-carriers had probably learned leaf-carrying when caged and 7 probably learned it on Kaja. Social priming was probably the main impetus to leaf-carrying on Kaja, by simply prompting observers to copy when leaf-carrying associates collected nesting materials, what they collected, and where they used their collected materials. Implications concern acquisition processes and ontogenetic schedules that orchestrate sets of features-needs or interests, cognitive abilities, social preferences-which enable cultural transmission.
Address Department of Psychology, Glendon College of York University, 2275 Bayview Avenue, Toronto, ON, M4N 3M6, Canada. arusson@gl.yorku.ca
Corporate Author Thesis
Publisher Place of Publication Editor
Language English Summary Language Original Title
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN 1435-9448 ISBN Medium
Area Expedition Conference
Notes PMID:17160669 Approved no
Call Number Equine Behaviour @ team @ Serial 2431
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Author Van Schaik, C.
Title Why are some animals so smart? Type Journal Article
Year 2006 Publication Scientific American Abbreviated Journal Sci Am
Volume 294 Issue 4 Pages 64-71
Keywords Animals; *Behavior, Animal; Cognition; Conditioning (Psychology); Culture; Environment; Equipment and Supplies; Evolution; Indonesia; *Intelligence; Learning; Pongo pygmaeus/*physiology; Social Behavior
Abstract
Address Anthropological Institute and Museum, University of Zurich, Switzerland
Corporate Author Thesis
Publisher Place of Publication Editor
Language English Summary Language Original Title
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN 0036-8733 ISBN Medium
Area Expedition Conference
Notes PMID:16596881 Approved no
Call Number Equine Behaviour @ team @ Serial 2830
Permanent link to this record