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Prestige affects cultural learning in chimpanzees

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e10625.pdf (287.6Kb)
Date
19/05/2010
Author
Horner, Victoria
Proctor, Darby
Bonnie, Kristin E.
Whiten, Andrew
de Waal, Frans B. M.
Keywords
Pan troglodytes
Wild chimpanzees
Tool use
Transmission
Rank
Innovation
Strategies
Behaviour
Skills
Q Science
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Abstract
Humans follow the example of prestigious, high-status individuals much more readily than that of others, such as when we copy the behavior of village elders, community leaders, or celebrities. This tendency has been declared uniquely human, yet remains untested in other species. Experimental studies of animal learning have typically focused on the learning mechanism rather than on social issues, such as who learns from whom. The latter, however, is essential to understanding how habits spread. Here we report that when given opportunities to watch alternative solutions to a foraging problem performed by two different models of their own species, chimpanzees preferentially copy the method shown by the older, higher-ranking individual with a prior track-record of success. Since both solutions were equally difficult, shown an equal number of times by each model and resulted in equal rewards, we interpret this outcome as evidence that the preferred model in each of the two groups tested enjoyed a significant degree of prestige in terms of whose example other chimpanzees chose to follow. Such prestige-based cultural transmission is a phenomenon shared with our own species. If similar biases operate in wild animal populations, the adoption of culturally transmitted innovations may be significantly shaped by the characteristics of performers.
Citation
Horner , V , Proctor , D , Bonnie , K E , Whiten , A & de Waal , F B M 2010 , ' Prestige affects cultural learning in chimpanzees ' , PLoS One , vol. 5 , no. 5 , e10625 . https://doi.org/10.1371/journal.pone.0010625
Publication
PLoS One
Status
Peer reviewed
DOI
https://doi.org/10.1371/journal.pone.0010625
ISSN
1932-6203
Type
Journal article
Rights
© 2010 Horner et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
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  • University of St Andrews Research
URI
http://hdl.handle.net/10023/4168

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