NDLI: Primate sexual swellings as coevolved signal systems

Content Provider	Springer Nature Link
Author	Stallmann, Robert R. Froehlich, Jeffery W.
Copyright Year	1999
Abstract	Many female catarrhine primates possess visually conspicuous organs that apparently function to increase the sexual interest of adult male conspecifics around the time the female is ovulating—i.e. sexual swellings. The hypothesized functional benefits for both sexes of these sexual swellings are reviewed (honest signaling; paternity confusion; paternity confidence and paternal investment; protection; incitement of precopulatory male-male competition; and postcopulatory sexual selection), as well as an additional hypothesis that has not yet been applied to this problem (sensory exploitation). Currently available evidence is presented that supports or fails to support each of these hypotheses. Predictions associated with broad groupings of these hypotheses, which could be tested in noninvasive field studies, are then presented. Ecological circumstances are discussed that could have led to differential mating success among female primates, and hence to sexual selection on females and directional evolution of sexual swellings. It is concluded that the available evidence does not support the paternity confidence-paternal investment hypothesis; that the paternity confusion hypothesis lacks empirical support, but could still be viable; and that insufficient data exists at present to rigorously test the other hypotheses. The ecological factors that may have led to differential reproductive success among females as a function of mating frequency or mate choice likewise require further empirical investigation.
Starting Page	1
Ending Page	16
Page Count	16
File Format	PDF
ISSN	00328332
Journal	Primates
Volume Number	41
Issue Number	1
e-ISSN	16107365
Language	English
Publisher	Springer-Verlag
Publisher Date	1999-01-01
Publisher Place	Tokyo
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Sexual swellings Sexual conflict Sexual selection Mate choice Multiple mating Behavioural Sciences Animal Ecology Evolutionary Biology Zoology
Content Type	Text
Resource Type	Article
Subject	Animal Science and Zoology

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