Impact of male takeover on Intra-unit sexual interactions and subsequent interbirth interval in wild Rhinopithecus roxellana
Date
2008
Authors
Zhao, Dapeng
Li, Baoguo
Groves, Colin
Watanabe, Kunio
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S Karger AG
Abstract
Data were collected on sexual interactions before and after a male takeover of a one-male unit (OMU) of Sichuan snub-nosed monkeys (Rhinopithecus roxellana) in the Qinling Mountains, China. The original unit consisted of an adult male, 2 adult and 2 subadult females, 2 female juveniles and a single infant. Following the takeover, the new resident male copulated with 1 adult female, which was not lactating. Subsequent to the disappearance of her infant, the second (lactating female) entered breeding condition and began to solicit copulation with the new resident male. The subadult females also engaged in matings with the new male. The new resident male was observed mating, on 3 occasions, with females in 2 other OMUs. These are the first observations of sexual behaviour in free-ranging Sichuan snub-nosed monkeys after an OMU takeover. Sexual interactions play an important role in establishing relationships between the new male and resident females in the OMU.
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Keywords
Keywords: animal; article; China; Colobinae; female; male; physiology; pregnancy; sexual behavior; social dominance; time; Animals; China; Colobinae; Female; Male; Pregnancy; Sexual Behavior, Animal; Social Dominance; Time Factors; Omus; Pygathrix roxellana Interbirth interval; Male takeover; Reproductive relationship; Rhinopithecus roxellana; Sexual interactions
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Folia primatologica: international journal of primatology
Type
Journal article
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2037-12-31
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