Sexual adaptation: is female-male mounting a supernormal courtship display in Japanese macaques?
Loading...
Date
2022
Authors
Gunst, Noëlle
Leca, Jean-Baptiste
Vasey, Paul L.
Journal Title
Journal ISSN
Volume Title
Publisher
Brill
Abstract
We analysed heterosexual consortships in a free-ranging group of Japanese macaques in which adult
females routinely perform female-to-male mounting (FMM). We tested whether FMM is more efficient
(i.e., a “supernormal courtship” behavioral pattern) than species-typical female-to-male sexual
solicitations (FMSS) at prompting subsequent male-to-female mounts (MFM). In a context of high femalefemale
competition for male mates, we found that (1) FMM functioned to focus the male consort
partner’s attention as efficiently as FMSS and prevented him from moving away, and (2) FMM was more
efficient than species-typical FMSS at expediting MFM (i.e., the most fitness-enhancing sexual behavior
of a mating sequence). We concluded that FMM could be considered a supernormal courtship behavioral
pattern in adult female Japanese macaques. This population-specific sexual adaptation may result from a
combination of favorable socio-demographic conditions. This study has implications for the evolutionary
history of non-conceptive mounting patterns in Japanese macaques and non-conceptive sexuality in
humans.
Description
Accepted author manuscript
Keywords
Female-to-male mount , Supernormal courtship , Sexual solicitation , Non-conceptive sex , Sexual adaptation , Japanese macaques , Non-human primates
Citation
Gunst, N., Leca, J.-B., & Vasey, P. L. (2022). Sexual adaptation. Is female-male mounting a supernormal courtship display in Japanese macaques? Behaviour. Advance online publication. https://doi.org/10.1163/1568539X-bja10161