Sexual behavior and extragroup copulations in a wild population of common marmosets (Callithrix jacchus)
Abstract
Sexual behavior and mating patterns are described for 3 free-ranging groups of common marmosets living in a coastal forest in northeastern Brazil. Each group contained 2 breeding females. Within groups, sexual behavior was generally restricted to breeding females and a single behaviorally dominant male. Of 101 mounts and copulations, 24 involved pairings of individuals from 2 different groups. Extragroup sexual behavior was performed by both breeding and nonbreeding group members, and 65% of all adults mounted or copulated with an extragroup individual at least once. Sexual behavior occurred throughout the female reproductive cycle but was significantly more frequent during an 11-day 'conception period'. Thus, while female marmosets show no physical signs of estrus, both males and females likely do have some information about the timing of ovulation. Mating patterns in this population included both polygyny and monogamy and varied between groups and over time.
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There is no evidence to suggest that extra-pair encounters diminish the quality of the bond with a long-term partner.
“yet there is no evidence to suggest that these extra-pair encounters diminish the quality of the bond with their long-term partner (Digby, 1999).”
From Oxytocin facilitates fidelity in well-established marmoset pairs by reducing sociosexual behavior toward opposite-sex strangers (2014) · cites this paper as Digby, 1999
In at least one wild population of marmosets, extra-pair sexual behavior has been reported during intergroup interactions.
“In at least one wild population of marmosets, extra-pair sexual behavior has been reported during intergroup interactions (Digby, 1999)”
From Oxytocin facilitates fidelity in well-established marmoset pairs by reducing sociosexual behavior toward opposite-sex strangers (2014) · cites this paper as Digby, 1999
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- Authors
- Digby, L. J.
- Affiliations
- University of California, Davis (US)
- Corresponding author
- Digby, Leslie J.
- Venue
- Folia Primatologica
- Publisher
- Walter de Gruyter GmbH
- Published
- 1999-02-14
- Volume
- 70
- Issue
- 3
- Pages
- 136-145
- ISSN
- 0015-5713 (ISSN-L)
- 1421-9980
- OpenAlex
- W2018242570
- Cited by
- 69
- References
- 28
- Citations by year
- 2026: 1 · 2024: 1 · 2022: 1 · 2021: 1 · 2020: 2 · 2019: 2 · 2018: 5 · 2017: 1 · 2016: 1 · 2015: 3 · 2014: 2 · 2013: 5 · 2012: 2
- FWCI
- 5.42
- Type
- journal article
- Language
- en
- Open access
- closed
- Locations
- Folia Primatologica (publishedVersion)
- PubMed (publishedVersion)
- Topics
- Social Sciences › Psychology › Social Psychology › Primate Behavior and Ecology
- Life Sciences › Agricultural and Biological Sciences › Ecology, Evolution, Behavior and Systematics › Animal Behavior and Reproduction
- Life Sciences › Biochemistry, Genetics and Molecular Biology › Developmental Biology › Animal Vocal Communication and Behavior
- Keywords
- Callithrix jacchus, sexual behavior, mating patterns, polygyny, monogamy, female reproductive cycle, ovulation timing, estrus, social dominance, free-ranging primates, wild primates
- MeSH terms
- Animals, Callithrix, Copulation, Female, Male, Sexual Behavior, Animal, Time Factors
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