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Food cleaning in gorillas : social learning is a possibility but not a necessity

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Neadle_2017_PLoSONE_Foodcleaning_CC.pdf (3.650Mb)
Date
04/12/2017
Author
Neadle, Damien
Allritz, Matthias
Tennie, Claudio
Keywords
BF Psychology
DAS
Metadata
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Abstract
Food cleaning is widespread in the animal kingdom, and a recent report confirmed that (amongst other behaviours) wild western lowland gorillas also show food cleaning. The authors of this report conclude that this behaviour, based on its distribution patterns, constitutes a potential candidate for culture. While different conceptualisations of culture exist, some more and some less reliant on behavioural form copying, all of them assign a special role to social learning processes in explaining potentially cultural behaviours. Here we report the results of an experiment that tested to what extent food cleaning behaviour in a group of captive Western lowland gorillas (Gorilla gorilla gorilla) relies on social learning processes. Subjects were provided with clean and dirty apples. When they were provided with dirty apples, all subjects showed evidence of food cleaning in at least 75% of trials. Preferred cleaning techniques differed between individuals, four out of five of subjects expressed a behaviour analogous to that reported in wild conspecifics. Given this occurrence of food cleaning in a culturally unconnected population of gorillas, we conclude that social learning is unlikely to play a central role in the emergence of the food cleaning behavioural form in Western lowland gorillas; instead, placing a greater emphasis on individual learning of food cleaning’s behavioural form.
Citation
Neadle , D , Allritz , M & Tennie , C 2017 , ' Food cleaning in gorillas : social learning is a possibility but not a necessity ' , PLoS One , vol. 12 , no. 12 , e0188866 . https://doi.org/10.1371/journal.pone.0188866
Publication
PLoS One
Status
Peer reviewed
DOI
https://doi.org/10.1371/journal.pone.0188866
ISSN
1932-6203
Type
Journal article
Rights
© 2017 Neadle 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.
Description
Damien Neadle has received funding from the Economic and Social Research Council, under a full PhD Studentship ES/J50001X/1. Matthias Allritz has received funding from the European Research Council under the European Union’s Seventh Framework Programme (FP7/2007-2013) / ERC grant agreement n° 609819 (SOMICS). Claudio Tennie has received funding from the European Research Council under the European Union’s Horizon 2020 Programme (H2020-EU.1.1.) / ERC grant agreement n° 714658.
Collections
  • University of St Andrews Research
URI
http://hdl.handle.net/10023/12251

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