Viability Selection on Seasonally Polyphenic Traits: Wing Melanin Pattern in Western White Butterflies.

@article{Kingsolver1995ViabilitySO,
  title={Viability Selection on Seasonally Polyphenic Traits: Wing Melanin Pattern in Western White Butterflies.},
  author={Joel G Kingsolver},
  journal={Evolution; international journal of organic evolution},
  year={1995},
  volume={49 5},
  pages={932-941}
}
Wing melanin pattern varies seasonally among generations in many populations of the butterfly Pontia occidentalis, leading to distinctly different wing phenotypes during spring and summer generations. Estimates of directional selection on wing pattern can therefore quantify the imperfection of this phenotypically plastic (polyphenic) response in generating "optimal" phenotypes for each seasonal generation. Mark-release-recapture (MRR) studies were used to estimate directional selection on six… CONTINUE READING
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The evolutionary maintenance of alternative phenotypes

  • H. F. Nijhout
  • American Naturalist
  • 1992

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