Sexual Selection in Males and Females

@article{CluttonBrock2007SexualSI,
  title={Sexual Selection in Males and Females},
  author={Tim H. Clutton‐Brock},
  journal={Science},
  year={2007},
  volume={318},
  pages={1882 - 1885}
}
Research on sexual selection shows that the evolution of secondary sexual characters in males and the distribution of sex differences are more complex than was initially suggested but does not undermine our understanding of the evolutionary mechanisms involved. However, the operation of sexual selection in females has still received relatively little attention. Recent studies show that both intrasexual competition between females and male choice of mating partners are common, leading to strong… 

Reproductive competition and sexual selection

  • T. Clutton‐Brock
  • Biology
    Philosophical Transactions of the Royal Society B: Biological Sciences
  • 2017
It is argued that different approaches provide complementary insights into the causes of sex differences in reproductive competition, the operation of sexual selection and the evolution of secondary sexual characters and that improvements in the understanding of the Evolution of Secondary sexual characters will require a more comprehensive understanding ofThe ways in which social and ecological conditions modify reproductive competition and development in females and males.

Mating failures as a consequence of sexual selection on females

Evidence of mating failures in two groups of insects, empidid flies and tettigoniid Orthoptera (katydids), are examined, showing that there are mating failures by females in populations in which the direction of sexual selection appears to be reversed, but not in populations where sexual selection seems to be stronger on males.

Sexual selection in females across the animal tree of life

The pioneers of sexual selection theory proposed that males are generally ‘eager’ whereas females are rather ‘coy’ with respect to mating. This male-centred perspective on sexual selection continues

Sexual selection in females

The evolution and significance of male mate choice.

Sexual selection maintains a female-specific character in a species with dynamic sex roles

The results indicate that even brief and circumscribed periods of intrasexual competition among females can lead to sexual selection on morphological characters and that this selection may not depend on multiple mating.

Sexual Selection and Female Competition

Sexual selection studies have traditionally focused on reproductive competition as a typical male characteristic, and regarded females as largely passive. However, empirical evidence now shows female

Social competition and selection in males and females

It is suggested that classifications of selection based on distinction between the form of competition or the components of fitness that are involved introduce unnecessary complexities and that the most useful approach in understanding the evolution and distribution of differences and similarities between the sexes is to compare the operation of selection in males and females in different reproductive systems.

Stronger net selection on males across animals

A comparative approach was used to show that net selection is indeed stronger in males in species prone to intense sexual selection, and that the genome is often confronted with a more stressful environment when expressed in males, supporting a long-standing key assumption required for sexual selection to bolster adaptation.
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