Male Bonding

Schülke, Oliver; Ostner, Julia

doi:10.1002/9781119179313.wbprim0239

Cited by 1 publication

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“…Variations in contest potential and their association with coalitionary male strategies, male bonding, and the occurrence of ritualized behavior have been reported across the genus Macaca (Ostner and Schülke, 2014). Additionally, the co-occurrence of rank-changing coalitions and bonds, as well as related benefits (see section 2.5.1), occurs in several species (reviewed in: Ostner and Schülke, 2014;Schülke and Ostner, 2017).…”

Section: Male Bonding: Evolution and Mechanismsmentioning

confidence: 99%

Dynamics and fitness benefits of male-male sociality in wild Guinea baboons (Papio papio)

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Males living in multi-male groups display a wide range of relationships with co-resident males, varying from high levels of competition, intolerance and avoidance to cooperation, affiliation and social bonds. Despite the wide diversity of male-male relationship dynamics, the existence of multi-male associations and male-male bonds is puzzling, as males compete over un-sharable fertilization. Multimale associations can emerge as a result of increased between-group competition, which would necessitate communal defense of females. In groups characterized by stable male co-residence, social bonds are thought to develop in scenarios of medium to low within-group contest potential, which would make it feasible for males to invest in coalitionary support aimed at rank ascension. Accordingly, multi-male alliances and coalitions between strongly bonded males are linked to lower takeover likelihoods and/or enhanced male reproductive success in several mammalian species. Female choice can also play a role, with increased reproductive success for males that invest in heterosexual bonds and provide services like protection from harassment and infanticide, assistance in rearing young, and support in conflicts. In this context, male-male ritualized behaviors are crucial behavioral mechanisms that balance the trade-offs imposed by male co-residence and help regulate male-male relationships. These ritualized exchanges are hypothesized to function as a tension buffering mechanism during competitive contexts and/or as honest signals used to test relationship quality, maintain social bonds, and promote cooperation. Several findings suggest that greeting function varies from species to species and that, in some cases, this can be influenced by the level of male tolerance and cooperation.In this thesis I investigate the dynamics and fitness benefits of male-male sociality in wild Guinea baboons by exploring the presence of strong male-male bonds along with their effect on male reproductive success and the function of ritualized greeting behavior between males. Guinea baboons live in nested multilevel societies, with several "units" forming a "party", which regularly aggregate into "gangs". Males engage in highly ritualized greetings with an intense repertoire involving potentially harmful behaviors like genital fondling, which may be crucial to regulating social dynamics in such large and fluid communities. The presence of male-male affiliation and cooperation, combined with the relatively high level of female leverage in intersexual relationships, make this species an intriguing model to assess how the advantages conferred by male-male sociality play out in a highly tolerant multilevel system. I examine whether number and strength of social bonds and number of associated secondary males are associated with higher average relatedness or enhanced reproductive success, using social behavior, genetic relatedness, and paternity of 24 adolescent and adult males. I group size, composition and spatiotemporal cohesiveness (i.e. social organiz...

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Section: Male Bonding: Evolution and Mechanismsmentioning

confidence: 99%

Dynamics and fitness benefits of male-male sociality in wild Guinea baboons (Papio papio)

Pesco¹

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show abstract

Male Bonding

Cited by 1 publication

References 7 publications

Dynamics and fitness benefits of male-male sociality in wild Guinea baboons (Papio papio)

Dynamics and fitness benefits of male-male sociality in wild Guinea baboons (Papio papio)

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