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Related Experiment Videos

Disruptive selection and then what?

Claus Rueffler1, Tom J M Van Dooren, Olof Leimar

  • 1Department of Zoology, University of Toronto, 25 Harbord Street, Toronto, Ontario, Canada, M5S 3G5. rueffler@zoo.utoronto.ca

Trends in Ecology & Evolution
|May 16, 2006
PubMed
Summary
This summary is machine-generated.

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Disruptive selection favors extreme traits, potentially increasing variation and reducing selection pressure. This review explores outcomes like new species, sexual dimorphism, and plasticity.

Area of Science:

  • Evolutionary Biology
  • Population Genetics

Background:

  • Disruptive selection favors extreme phenotypes over intermediate ones.
  • Persistent disruptive selection can paradoxically reduce selection pressure while increasing variation.

Purpose of the Study:

  • To review processes that enhance phenotypic variation under disruptive selection.
  • To discuss potential evolutionary outcomes and influencing factors.

Main Methods:

  • Literature review of studies on disruptive selection.
  • Synthesis of research on phenotypic variation and evolutionary consequences.

Main Results:

  • Disruptive selection can lead to increased phenotypic variation.
  • Outcomes include sympatric speciation, sexual dimorphism, and phenotypic plasticity.

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  • Factors influencing these outcomes were identified.

    • Conclusions:

    • Understanding disruptive selection is key to explaining biodiversity.
    • Phenotypic plasticity and ecological interactions play crucial roles in evolutionary trajectories.