Journal article
Sexually selected females in the monogamous Western Australian seahorse
Proceedings of the Royal Society B: Biological Sciences, Vol.274(1609), pp.521-525
22/02/2007
Abstract
Studies of sexual selection in monogamous species have hitherto focused on sexual selection among males. Here, we provide empirical documentation that sexual selection can also act strongly on females in a natural population with a monogamous mating system. In our field-based genetic study of the monogamous Western Australian seahorse, Hippocampus subelongatus, sexual selection differentials and gradients show that females are under stronger sexual selection than males: mated females are larger than unmated ones, whereas mated and unmated males do not differ in size. In addition, the opportunity for sexual selection (variance in mating success divided by its mean squared) for females is almost three times that for males. These results, which seem to be generated by a combination of a male preference for larger females and a female-biased adult sex ratio, indicate that substantial sexual selection on females is a potentially important but under-appreciated evolutionary phenomenon in monogamous species.
Details
- Title
- Sexually selected females in the monogamous Western Australian seahorse
- Authors/Creators
- C. Kvarnemo (Author/Creator)G. Moore (Author/Creator)A.G. Jones (Author/Creator)
- Publication Details
- Proceedings of the Royal Society B: Biological Sciences, Vol.274(1609), pp.521-525
- Publisher
- Royal Society of London
- Identifiers
- 991005545203807891
- Copyright
- © 2006 The Royal Society.
- Murdoch Affiliation
- School of Biological Sciences and Biotechnology
- Language
- English
- Resource Type
- Journal article
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Source: InCites
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- Collaboration types
- Domestic collaboration
- International collaboration
- Citation topics
- 3 Agriculture, Environment & Ecology
- 3.35 Zoology & Animal Ecology
- 3.35.434 Sexual Selection
- Web Of Science research areas
- Biology
- Ecology
- Evolutionary Biology
- ESI research areas
- Plant & Animal Science