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What makes a pair bond in a Neotropical primate: female and male contributions.


ABSTRACT: Pair living and pair bonding are rare in mammals, and the mechanisms of their maintenance remain a puzzle. Titi monkeys, a 'textbook example' for 'monogamous' primates, have strong pair bonds and extensive male care. To investigate mechanisms of pair-bond maintenance, we studied seven wild groups of red titis (Plecturocebus cupreus) in Peruvian Amazonia over a period of 14 months. We analysed pair bonds by measuring proximity, grooming and approaches/leaves within pairs, and collected data on intergroup encounters. Females contributed to grooming more than males, especially during infant dependency, when most of the grooming within pairs was done by females. Females were also more active in controlling proximity between pair mates, making most of the approaches and leaves. Males, on the other hand, invested more in territorial defences. They participated in more intergroup encounters than females and were more active during these encounters. Our data is most consistent with the 'male-services' hypothesis for pair-bond maintenance, where a female contributes more to the proximity and affiliation maintenance while a male provides beneficial services.

SUBMITTER: Dolotovskaya S 

PROVIDER: S-EPMC7029894 | biostudies-literature | 2020 Jan

REPOSITORIES: biostudies-literature

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What makes a pair bond in a Neotropical primate: female and male contributions.

Dolotovskaya Sofya S   Walker Sarah S   Heymann Eckhard W EW  

Royal Society open science 20200115 1


Pair living and pair bonding are rare in mammals, and the mechanisms of their maintenance remain a puzzle. Titi monkeys, a 'textbook example' for 'monogamous' primates, have strong pair bonds and extensive male care. To investigate mechanisms of pair-bond maintenance, we studied seven wild groups of red titis (<i>Plecturocebus cupreus</i>) in Peruvian Amazonia over a period of 14 months. We analysed pair bonds by measuring proximity, grooming and approaches/leaves within pairs, and collected dat  ...[more]

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