Evolution in a changing environment: a case study with great tit fledging mass.

@article{Garant2004EvolutionIA,
  title={Evolution in a changing environment: a case study with great tit fledging mass.},
  author={Dany Garant and Loeske E. B. Kruuk and Robin H. McCleery and Ben C Sheldon},
  journal={The American naturalist},
  year={2004},
  volume={164 5},
  pages={E115-29}
}
Heritable phenotypic traits under significant and consistent directional selection often fail to show the expected evolutionary response. A potential explanation for this contradiction is that because environmental conditions change constantly, environmental change can mask an evolutionary response to selection. We combined an "animal model" analysis with 36 years of data from a long-term study of great tits (Parus major) to explore selection on and evolution of a morphological trait: body mass… CONTINUE READING

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