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Stress, developmental stability and sexual selection

A P Møller1

  • 1Laboratoire d'Ecologie CNRS URA 258, Université Pierre et Marie Curie, Paris, France.

EXS
|January 1, 1997
PubMed
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Sexual selection can increase individual stress due to intense trait development or costly secondary sexual characters. This may lead to reduced stress resistance and increased extinction risk in lineages, impacting both animals and plants.

Area of Science:

  • Evolutionary biology
  • Animal behavior
  • Plant science

Background:

  • Sexual selection can elevate physiological stress in individuals.
  • Phenotypic asymmetry, especially in secondary sexual traits, is often selected against.
  • Environmental deviations can disproportionately affect secondary sexual characters.

Purpose of the Study:

  • To explore the link between sexual selection, stress, and phenotypic traits.
  • To investigate the impact of sexual selection on stress resistance and evolutionary trajectories.
  • To examine the role of floral symmetry in plant sexual selection and pollinator interactions.

Main Methods:

  • Review of existing literature on sexual selection and stress.
  • Analysis of theoretical implications for phenotypic development and environmental susceptibility.

Related Experiment Videos

  • Comparative analysis of sexual selection effects in animals and plants.

    • Main Results:

    • Intense sexual selection may compromise stress resilience.
    • Asymmetric secondary sexual characters are vulnerable to environmental stress.
    • Floral asymmetry can negatively impact pollinator attraction and rewards, suggesting a role for sexual selection in plants.

    Conclusions:

    • Sexual selection can impose significant physiological stress, potentially reducing stress resistance.
    • Phenotypic asymmetry in sexual traits may be a marker for environmental sensitivity.
    • Floral symmetry could be under sexual selection, influencing plant fitness and pollinator interactions.