Grooming decisions under structural despotism: the impact of social rank and bystanders among wild male chimpanzees
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چکیده
منابع مشابه
Grooming decisions under structural despotism: the impact of social rank and bystanders among wild male chimpanzees
http://dx.doi.org/10.1016/j.anbehav.2017.04.012 0003-3472/© 2017 The Author(s). Published by Elsevi license (http://creativecommons.org/licenses/by/4.0/) Understanding the evolution of cooperation remains a central concern in studies of animal behaviour, with fundamental issues being how individuals avoid being cheated, or ‘short-changed’, and how partners are chosen. Economic decisions made du...
متن کاملBystanders, parcelling, and an absence of trust in the grooming interactions of wild male chimpanzees
The evolution of cooperation remains a central issue in socio-biology with the fundamental problem of how individuals minimize the risks of being short-changed ('cheated') should their behavioural investment in another not be returned. Economic decisions that individuals make during interactions may depend upon the presence of potential partners nearby, which offers co operators a temptation to...
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Chimpanzees (Pan troglodytes) often groom in gatherings that cannot simply be divided into unilateral dyadic grooming interactions. This feature of grooming is studied at two different levels: grooming cliques and grooming clusters. Grooming cliques are defined as directly connected configurations of grooming interactions at any given moment, and when any member of a clique successively grooms ...
متن کاملVariable grooming behaviours in wild chimpanzees.
Wild chimpanzees, Pan troglodytes, show regional differences in feeding [Boesch and Boesch-Achermann, 2000], tool using [McGrew, 1992], grooming [Nakamura et al., 2000], courtship [Nishida et al., 1999] and vocal communication [Mitani et al., 1992]. Comparisons have revealed at least 39 behavioural differences among chimpanzee populations [Whiten et al., 1999]. Here we add to that list by repor...
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A grooming posture previously reported for two wild chimpanzee (Pan troglodytes) communities developed spontaneously in a captive group of the same species. This offered a unique opportunity to follow the propagation of a new social custom. The posture consists of two partners grasping hands--either both right hands or both left hands--and raising the arms in an A-frame above their heads while ...
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ژورنال
عنوان ژورنال: Animal Behaviour
سال: 2017
ISSN: 0003-3472
DOI: 10.1016/j.anbehav.2017.04.012