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Résumés du 27e colloque de la SFDP (Poitiers, 4-7 Novembre, 2014)
45

Rupture in long-term vocal recognition of past social partners in bonobos

Sumir Keenan, Nicolas Mathevon, Jeroen Stevens, Jean-Pascal Guéry, Klaus Zuberbühler and Florence Levréro

Abstract

Bonobos live in dense forest habitats where visual communication is often limited rendering vocal signals important to regulate their social interactions. Moreover their fluid fission-fusion society requires contact over long distances, suggesting that vocal signals of group members are recognised individually. To this end, individual signatures should be reliably encoded in vocal interactions and memorised by recipients over long periods. In this study we investigated individual vocal recognition of group members that had been separated for long periods of time (two to nine years) with varying relationships. In the wild, long-term separation happens regularly, usually in relation to female migration. In captivity, the same process takes place during the transfer of individuals between zoos, mimicking wild migration. We simulated bonobo transfers by broadcasting contact calls of familiar or unfamiliar individuals to our subjects, thus imitating the arrival of new group members. In total, we tested 15 bonobos (> 10 years old) from three European zoos and compared their behavioural responses. We found that bonobos responded differently to familiar voices than to stranger voices, even after prolonged separation. However, the recognition of past partners appears to diminish after being separated for 6-8 years. This interesting result will be discussed regarding to the social needs in bonobos.

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Index terms

Thématique :

éthologie
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Publication history

Présenté le 7/11/2014

References

Electronic reference

Sumir Keenan, Nicolas Mathevon, Jeroen Stevens, Jean-Pascal Guéry, Klaus Zuberbühler and Florence Levréro, « Rupture in long-term vocal recognition of past social partners in bonobos », Revue de primatologie [Online], 6 | 2015, document 45, Online since 31 March 2015, connection on 22 July 2017. URL : http://primatologie.revues.org/2249 ; DOI : 10.4000/primatologie.2249

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About the authors

Sumir Keenan

Université de Saint‑Etienne‑Lyon, Equipe Neuro-Ethologie Sensorielle, ENES/CNPS CNRS UMR8195, Saint‑Etienne, France et University of St. Andrews, Dept. of Psychology and Neuroscience, St. Andrews, Scotland

Nicolas Mathevon

Université de Saint‑Etienne‑Lyon, Equipe Neuro-Ethologie Sensorielle, ENES/CNPS CNRS UMR8195, Saint‑Etienne, France

Jeroen Stevens

Royal Zoological Society of Antwerp, Centre for Research and Conservation, Antwerp Belgium

Jean-Pascal Guéry

Vallée des Singes, Zoological Park, Romagne, France

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Klaus Zuberbühler

University of St. Andrews, Dept. of Psychology and Neuroscience, St. Andrews, Scotland, Université de Neuchatel, Dept. of Comparative Cognition, Neuchatel, Switzerland

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Florence Levréro

Université de Saint‑Etienne‑Lyon, Equipe Neuro-Ethologie Sensorielle, ENES/CNPS CNRS UMR8195, Saint‑Etienne, France
Auteure pour la correspondance :
florence.levrero@univ-st-etienne.fr

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Copyright

Licence Creative Commons
Les contenus de la Revue de primatologie sont mis à disposition selon les termes de la Licence Creative Commons Attribution - Pas d’Utilisation Commerciale - Pas de Modification 4.0 International.

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