• Publications
  • Influence
The evolution of female social relationships in nonhuman primates
Abstract Considerable interspecific variation in female social relationships occurs in gregarious primates, particularly with regard to agonism and cooperation between females and to the quality ofExpand
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Female Dominance Relationships and Food Competition in the Sympatric Thomas Langur and Long-Tailed Macaque
Aggressive interactions can serve to secure resources. These interactions determine female dominance relationships, which have been related to the monopolizability of food patches. Patches of mediumExpand
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[Socio-ecological theories predict that females adapt their social behaviour to their environment. On the other hand, as a result of phylogenetic inertia, social behaviour may be slow to catch upExpand
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Close social associations in animals and humans : functions and mechanisms of friendship
Both humans and group-living animals associate and behave affiliatively more with some individuals than others. Human friendship has long been acknowledged, and recently scientists studying animalExpand
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Reconciliation, relationship quality, and postconflict anxiety: testing the integrated hypothesis in captive chimpanzees
Reconciliation is a conflict resolution mechanism that is common to many gregarious species with individualized societies. Reconciliation repairs the damaged relationship between the opponents andExpand
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Generous Leaders and Selfish Underdogs: Pro-Sociality in Despotic Macaques
Actively granting food to a companion is called pro-social behavior and is considered to be part of altruism. Recent findings show that some non-human primates behave pro-socially. However,Expand
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Chimpanzee (Pan troglodytes) anticipation of food return: coping with waiting time in an exchange task.
Despite controversial expectations that animals achieve reciprocal altruism, it is unclear if nonhuman species possess the necessary cognitive abilities. For reciprocal altruism, individuals mustExpand
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Determinants of female dispersal in Thomas langurs
  • E. H. Sterck
  • Biology, Medicine
  • American journal of primatology
  • 1997
Female dispersal occurs in a number of primate species. It may be related to: avoidance of inbreeding, reduction in food competition, reduction of predation risk, or avoidance of infanticide inExpand
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Ground‐nesting by the chimpanzees of the Nimba Mountains, Guinea: environmentally or socially determined?
The chimpanzees (Pan troglodytes verus) of the Nimba Mountains, Guinea, West Africa, commonly make both elaborate (“night”) and simple (“day”) nests on the ground. In this study we investigated whichExpand
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Triadic postconflict affiliation in captive chimpanzees: does consolation console?
Consolation is a triadic postconflict interaction between a conflict participant and an uninvolved third party. The term consolation implies stress alleviation. Consequently, consolation may be anExpand
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