Female choice response to artificial selection on an exaggerated male trait in a stalk-eyed fly

@article{Wilkinson1994FemaleCR,
  title={Female choice response to artificial selection on an exaggerated male trait in a stalk-eyed fly},
  author={Gerald S. Wilkinson and Paul R. Reillo},
  journal={Proceedings of the Royal Society of London. Series B: Biological Sciences},
  year={1994},
  volume={255},
  pages={1 - 6}
}
  • G. Wilkinson, P. R. Reillo
  • Published 1994
  • Biology
  • Proceedings of the Royal Society of London. Series B: Biological Sciences
Quantitative genetic models for the evolution of exaggerated male traits through female mate choice predict that selection on male ornaments should cause a correlated response in female preferences. Furthermore, female selectivity should be inversely related to costs of mate choice. Here we use a stalkeyed fly Cyrtodiopsis dalmanni (Diptera:Diopsidae), which exhibits pronounced sexual dimorphism in eye span, to evaluate these predictions. Field observations reveal that each evening females… Expand

Figures from this paper

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The absence of any change in sperm length or testis size between lines indicates that changes in female traits are unlikely due to correlated selection mediated by sperm competition, and the presence of nonadditive allelic effects on genetically correlated female traits combined with additive alleliceffects on a male ornament provides a previously unrecognized mechanism by which genetic variation could be maintained despite strong sexual selection. Expand
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It is shown that females prefer ornaments that indicate genetic quality generated by transmission conflict between the sex chromosomes, and male eye span signals genetic quality by influencing the reproductive value of offspring. Expand
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Staged male fights among three species of Malaysian stalk-eyed flies used to determine if elongated eye span influences contest outcome found that eye span, independently of body size, determines contest outcome in selected-line males. Expand
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Results show that male mate preferences are a prevalent feature of a canonical example of female mate choice sexual selection and that males use multiple cues when they assess females as potential mates. Expand
Direct and correlated responses to artificial selection on male mating frequency in the stalk‐eyed fly Cyrtodiopsis dalmanni
TLDR
The results suggest that costs associated with the production and maintenance of large accessory glands, although yet to be identified, are likely to be a major constraint on mating frequency in natural populations of C. dalmanni. Expand
Effects of multiple mating and male eye span on female reproductive output in the stalk-eyed fly, Cyrtodiopsis dalmanni
TLDR
Examination of the effects of multiple mating and male eye span on short-term reproductive output in the stalk-eyed fly suggested that obtaining a sufficient sperm supply is an important benefit associated with multiple mating. Expand
Female mate choice and male ornamentation in the stalk-eyed fly, diasemopsis meigenii
TLDR
It is shown that choosiness and selection, but not the preference function, are elevated in mated females, and evidence is found for the heightened condition dependence of the male sexual trait (male eyespan), and for a novel gene-by-environment interaction. Expand
Condition-dependent signalling of genetic variation in stalk-eyed flies
TLDR
It is shown that genetic variation underlies the response to environmental stress of a sexual ornament (male eye span) in the stalk-eyed fly Cyrtodiopsis dalmanni, and this results strongly support the hypothesis that female mate choice yields genetic benefits for offspring. Expand
Male sexual ornament size is positively associated with reproductive morphology and enhanced fertility in the stalk-eyed fly Teleopsis dalmanni
TLDR
Male eyespan in stalk-eyed flies is subject to strong directional mate preference and is a reliable indicator of male reproductive quality – both because males with larger eyespan have bigger accessory glands and testes, and also as they confer higher fertility on females. Expand
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