Carotenoids, parasites, and sexual selection

@article{Lozano1994CarotenoidsPA,
  title={Carotenoids, parasites, and sexual selection},
  author={George A. Lozano},
  journal={Oikos},
  year={1994},
  volume={70},
  pages={309-311}
}
In recent years carotenoids have become increasingly important in the study of sexual selection. Endler (1980) found that the colour pattern diversity and conspicuousness of males of a population of guppies (Poecilia reticulata) increased after a few generations without predation. He argued that males, emancipated from the constraints of predation, were able to respond better to sexual selection brought about by female preference for colourful males. He subsequently (Endler 1983) showed that in… Expand
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It is suggested that males and females in this species mutually select each other based on red coloration, and males might obtain high quality mates and offspring by choosing females based on carotenoid-based coloration. Expand
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The results suggest kestrels may have the ability to regulate (rather than merely control) their colour physiologically, the variation in colour and carotenoids is consistent with that expected of a sexually selected trait, and the loss of colour after breeding may suggest a trade-off between the show and health functions of carOTenoids. Expand
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Observations found that captive male House Finches experimentally infected with Isospora spp. Expand
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Carotenoids, Immunity, and Sexual Selection: Comparing Apples and Oranges?
  • G. Lozano
  • Medicine, Biology
  • The American Naturalist
  • 2001
TLDR
Hill (1999) outlined several alleged inconsistencies that “have been ignored or overlooked in the growing literature pro-moting the idea of carotenoids as signals of immuno-competence,” but his arguments and supporting evidence require careful scrutiny. Expand
Color in a Long-Lived Tropical Seabird
TLDR
Using long-term data, it is found that as individuals age and accumulate the negative effects of breeding effort, foot color deteriorates and there seems to be a trade-off between female ornamentation and fecundity mediated by carotenoid availability, suggesting that males should not prefer highly ornamented females that invest heavily in coloration incurring fertility costs. Expand
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