| Records |
| 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 |
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| Language |
English |
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Series Issue |
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Edition |
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| ISSN |
1435-9448 |
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| Notes |
PMID:17160669 |
Approved |
no |
| Call Number |
Equine Behaviour @ team @ |
Serial |
2431 |
| Permanent link to this record |
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| Author |
Russon, A.E.; Galdikas, B.M.F. |
| Title |
Constraints on great apes' imitation: Model and action selectivity in rehabilitant orangutan (Pongo pygmaeus) imitation |
Type |
Journal Article |
| Year |
1995 |
Publication |
Journal of Comparative Psychology |
Abbreviated Journal |
J. Comp. Psychol. |
| Volume |
109 |
Issue |
1 |
Pages |
5-17 |
| Keywords |
*Imitation (Learning); Primates (Nonhuman) |
| Abstract |
We discuss selectivity in great ape imitation, on the basis of an observational study of spontaneous imitation in free-ranging rehabilitant orangutans (Pongo pygmaeus). Research on great ape imitation has neglected selectivity, although comparative evidence suggests it may be important. We observed orangutans in central Indonesian Borneo and assessed patterns in the models and actions they spontaneously imitated. The patterns we found resembled those reported in humans. Orangutans preferred models with whom they had positive affective relationships (e.g., important caregiver or older sibling) and actions that reflected their current competence, were receptively familiar, and were relevant to tasks that faced them. Both developmental and individual variability were found. We discuss the probable functions of imitation for great apes and the role of selectivity in directing it. We also make suggestions for more effective elicitation of imitation. (PsycINFO Database Record (c) 2012 APA, all rights reserved) |
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American Psychological Association |
Place of Publication |
Us |
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1939-2087(Electronic);0735-7036(Print) |
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| Notes |
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Approved |
no |
| Call Number |
Equine Behaviour @ team @ 1995-20268-001 |
Serial |
5690 |
| Permanent link to this record |
