@article{Moscovice2019coope-57199,
  year={2019},
  doi={10.1016/j.yhbeh.2019.104581},
  title={The cooperative sex : Sexual interactions among female bonobos are linked to increases in oxytocin, proximity and coalitions},
  volume={116},
  issn={0018-506X},
  journal={Hormones and Behavior},
  author={Moscovice, Liza R. and Surbeck, Martin and Fruth, Barbara and Hohmann, Gottfried and Jaeggi, Adrian V. and Deschner, Tobias},
  note={Article Number: 104581}
}

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    <dc:creator>Hohmann, Gottfried</dc:creator>
    <dc:contributor>Jaeggi, Adrian V.</dc:contributor>
    <dc:contributor>Moscovice, Liza R.</dc:contributor>
    <dcterms:abstract xml:lang="eng">In some species habitual same-sex sexual behavior co-occurs with high levels of intra-sexual alliance formation, suggesting that these behaviors may be linked. We tested for such a link by comparing behavioral and physiological outcomes of sex with unrelated same- and opposite-sex partners in female bonobos (Pan paniscus). We analyzed behavioral outcomes following 971 sexual events involving n = 19 female and n = 8 male adult and sub-adult members of a wild, habituated bonobo community. We additionally collected n = 143 urine samples before and after sexual interactions to non-invasively measure oxytocin (OT), which modulates female sexual behavior and facilitates cooperation in other species. The majority of sexual events (65%) consisted of female same-sex genito-genital rubbing (or GG-rubbing). Female dyads engaged in significantly more sexual interactions than did inter-sexual dyads, and females were more likely to remain within close proximity to their partners following GG-rubbing. Females also exhibited greater increases in urinary OT following GG-rubbing compared with copulations, indicating a physiological basis for increased motivation to cooperate among females. The frequency of coalitionary support among non-kin was positively predicted by the frequency of sexual interactions for female as well opposite-sex dyads, although coalitionary support tended to be more frequent among females. The emergence of habitual same-sex sexual behavior may have been an important step in the evolution of cooperation outside of kinship and pair-bonds in one of our closest phylogenetic relatives.</dcterms:abstract>
    <dc:contributor>Fruth, Barbara</dc:contributor>
    <dc:language>eng</dc:language>
    <dc:creator>Deschner, Tobias</dc:creator>
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    <dc:contributor>Hohmann, Gottfried</dc:contributor>
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    <dc:creator>Jaeggi, Adrian V.</dc:creator>
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    <dc:contributor>Surbeck, Martin</dc:contributor>
    <dcterms:available rdf:datatype="http://www.w3.org/2001/XMLSchema#dateTime">2022-04-07T07:53:57Z</dcterms:available>
    <dc:rights>Attribution 4.0 International</dc:rights>
    <dcterms:issued>2019</dcterms:issued>
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    <dc:contributor>Deschner, Tobias</dc:contributor>
    <dcterms:title>The cooperative sex : Sexual interactions among female bonobos are linked to increases in oxytocin, proximity and coalitions</dcterms:title>
    <dc:creator>Fruth, Barbara</dc:creator>
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    <dc:creator>Surbeck, Martin</dc:creator>
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