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Sexual selection on male vocal fundamental frequency in humans and other anthropoids

Puts, D. A. and Hill, A. K. and Bailey, D. H. and Walker, R. S. and Rendall, D. and Wheatley, J. R. and Welling, L. L. M. and Dawood, K. and Cárdenas, R. A. and Burriss, R. P. and Jablonski, N. G. and Shriver, M. D. and Weiss, D. M. and Lameira, A. R. and Apicella, C. L. and Owren, M. J. and Barelli, C. and Glenn, M. E. and Ramos-Fernandez, G.. (2016) Sexual selection on male vocal fundamental frequency in humans and other anthropoids. Proceedings of the Royal Society. Series B, Biological Sciences, 283 (1829). p. 20152830.

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Official URL: http://edoc.unibas.ch/51874/

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Abstract

In many primates, including humans, the vocalizations of males and females differ dramatically, with male vocalizations and vocal anatomy often seeming to exaggerate apparent body size. These traits may be favoured by sexual selection because low-frequency male vocalizations intimidate rivals and/or attract females, but this hypothesis has not been systematically tested across primates, nor is it clear why competitors and potential mates should attend to vocalization frequencies. Here we show across anthropoids that sexual dimorphism in fundamental frequency (F0) increased during evolutionary transitions towards polygyny, and decreased during transitions towards monogamy. Surprisingly, humans exhibit greater F0 sexual dimorphism than any other ape. We also show that low-F0 vocalizations predict perceptions of men's dominance and attractiveness, and predict hormone profiles (low cortisol and high testosterone) related to immune function. These results suggest that low male F0 signals condition to competitors and mates, and evolved in male anthropoids in response to the intensity of mating competition.
Faculties and Departments:07 Faculty of Psychology > Departement Psychologie > Forschungsbereich Persönlichkeits- und Entwicklungspsychologie > Entwicklungs- und Persönlichkeitspsychologie (Grob)
UniBasel Contributors:Burriss, Robert P.
Item Type:Article, refereed
Article Subtype:Research Article
Publisher:The Royal Society
ISSN:0962-8452
e-ISSN:1471-2954
Note:Publication type according to Uni Basel Research Database: Journal article
Identification Number:
Last Modified:30 Oct 2017 07:52
Deposited On:30 Oct 2017 07:52

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