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BonobosUnique in Mind, Brain, and Behavior$
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Brian Hare and Shinya Yamamoto

Print publication date: 2017

Print ISBN-13: 9780198728511

Published to Oxford Scholarship Online: January 2018

DOI: 10.1093/oso/9780198728511.001.0001

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Affiliations, aggressions and an adoption: Male–male relationships in wild bonobos

Affiliations, aggressions and an adoption: Male–male relationships in wild bonobos

(p.35) Chapter 3 Affiliations, aggressions and an adoption: Male–male relationships in wild bonobos

Martin Surbeck

Gottfried Hohmann

Oxford University Press

The nature of the relationships between males is a characteristic trait of many multi-male group living species with implications for the individuals. In our study population of bonobos, certain male dyads exhibit clear preferences for ranging in the same party and sitting in proximity. These preferences are not reflected in the frequency of aggression towards each other and only to some extent in their affiliative and socio-sexual behaviours. While bonobo males at LuiKotale clearly do not benefit from close relationships in the way chimpanzee males do (cooperative hunting, territorial patrol, mate competition), some relationships might result from close associations between their mothers. In some particular situations, these male relationships can be very important as in the case of an orphan adopted by his older maternal brother. La nature des relations entre mâles est un trait caractéristique de plusieurs groupes qui ont plusieurs mâles, avec des implications au niveau d’individus. Dans notre étude des populations de bonobos, certains dyades mâles montrent une préférence à aller dans le même groupe et s’asseoir proche l’un de l’autre. Cette préférence n’est pas reflétée dans la fréquence d’agression entre eux et est seulement lié, à degrés, à leur comportements socio-sexuels et d’appartenance. Tandis que les mâles bonobos à LuiKotale ne profitent pas de leur fortes relations comme les chimpanzés mâles (chasse coopérative, patrouille territoriale, compétition pour compagnon), ils peuvent aider leur partenaires à supporter le stress de la vie en groupe et peuvent en conséquence contribuer au bien-être des individus. Quelques proches associations entre les mâles peuvent provenir d’associations entre leurs mères. Dans quelques situations particulières, ces relations mâles prouvent leur importance comme dans le cas d’un orphelin adopté par son grand frère maternel.

Keywords:   Association, fission–fusion dynamics, coalitions, socio-sexual behaviour, bonding

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