caa a22 4500 606232052 CHVBK 20210128101224.0 cr unu---uuuuu 210128e20151101xx s 000 0 eng 10.1007/s10508-015-0522-4 doi (NATIONALLICENCE)springer-10.1007/s10508-015-0522-4 Effect of Female-Biased Sex Ratios on Female Homosexual Behavior in Japanese Macaques: Evidence for the "Bisexual Preference Hypothesis” [Elektronische Daten] [Jean-Baptiste Leca, Noëlle Gunst, Michael Huffman, Paul Vasey] We aimed to explain the frequent and prevalent female homosexual behavior in the context of female-biased operational sex ratios (OSR) and qualified sex ratios (Q) in a free-ranging group of Japanese macaques (Macaca fuscata) living at Arashiyama-Kyoto, Japan. Our data included the average availability of sexually mature males during females' putative fertile period (OSR), the ratio of sexually mature males to sexually mature females (Q), as well as heterosexual and female homosexual solicitations and consortships collected during 13 mating seasons from 136 females. Our results did not support the "heterosexual deprivation hypothesis,” which holds that female homosexual behavior is attributable to a shortage of male mates. Likewise, our results did not support the "lack of opposite-sex sexual competitor hypothesis,” which holds that females have more access to female mates when male sexual rivals are scarce. Of the 11 predictions tested, only one yielded statistically significant results: we found that higher ratios of availability of preferred female partners to preferred male partners were associated with female homosexual consortships rather than female heterosexual consortships. This result supported the "bisexual preference hypothesis,” which holds that female homosexual behavior is attributable to female preference for certain female mates relative to certain male mates. We conclude that when a female targets another female as a mate, it is an active choice for a female sexual partner over available male alternatives, rather than a by-default situation that occurs because males are not available as sexual partners, or because females are better able to access female sexual partners due to a scarcity of male sexual competitors. Springer Science+Business Media New York, 2015 Operational sex ratio nationallicence Qualified sex ratio nationallicence Female homosexual behavior nationallicence Bisexual preference nationallicence Non-human primates nationallicence Leca Jean-Baptiste Department of Psychology, University of Lethbridge, 4401 University Drive, T1K 3M4, Lethbridge, AB, Canada aut Gunst Noëlle Department of Psychology, University of Lethbridge, 4401 University Drive, T1K 3M4, Lethbridge, AB, Canada aut Huffman Michael Section of Social Systems Evolution, Primate Research Institute, Kyoto University, Inuyama, Aichi, Japan aut Vasey Paul Department of Psychology, University of Lethbridge, 4401 University Drive, T1K 3M4, Lethbridge, AB, Canada aut Archives of Sexual Behavior Springer US; http://www.springer-ny.com 44/8(2015-11-01), 2125-2138 0004-0002 44:8<2125 2015 44 10508 https://doi.org/10.1007/s10508-015-0522-4 text/html Onlinezugriff via DOI BK010053 XK010053 XK010000 Metadata rights reserved Springer special CC-BY-NC licence nationallicence 1 research-article jats NATIONALLICENCE NATIONALLICENCE NL-springer NATIONALLICENCE 856 40 https://doi.org/10.1007/s10508-015-0522-4 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Leca Jean-Baptiste Department of Psychology, University of Lethbridge, 4401 University Drive, T1K 3M4, Lethbridge, AB, Canada aut NATIONALLICENCE 700 1- Gunst Noëlle Department of Psychology, University of Lethbridge, 4401 University Drive, T1K 3M4, Lethbridge, AB, Canada aut NATIONALLICENCE 700 1- Huffman Michael Section of Social Systems Evolution, Primate Research Institute, Kyoto University, Inuyama, Aichi, Japan aut NATIONALLICENCE 700 1- Vasey Paul Department of Psychology, University of Lethbridge, 4401 University Drive, T1K 3M4, Lethbridge, AB, Canada aut NATIONALLICENCE 773 0- Archives of Sexual Behavior Springer US; http://www.springer-ny.com 44/8(2015-11-01), 2125-2138 0004-0002 44:8<2125 2015 44 10508