Disruptive selection and the genetic basis of bill size polymorphism in the African finch Pyrenestes

@article{Smith1993DisruptiveSA,
  title={Disruptive selection and the genetic basis of bill size polymorphism in the African finch Pyrenestes},
  author={T. B. Smith},
  journal={Nature},
  year={1993},
  volume={363},
  pages={618-620}
}
MECHANISMS producing and maintaining discrete polymorphisms have long fascinated evolutionary biologists1,2. Despite the ubiquity of non-sex-limited polymorphisms in vertebrates, the evolutionary factors maintaining them are well understood in only a few instances3. The African finch Pyrenestes is unique among birds in exhibiting a non-sex-determined polymorphism in bill size4,5. Morphs breed randomly with respect to bill size and differ in diet and feeding performance on soft and hard seeds4,6… Expand
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  • 133
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  • 59
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  • 6
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References

SHOWING 1-10 OF 13 REFERENCES
NATURAL SELECTION ON BILL CHARACTERS IN THE TWO BILL MORPHS OF THE AFRICAN FINCH PYRENESTES OSTRINUS
  • T. B. Smith
  • Biology, Medicine
  • Evolution; international journal of organic evolution
  • 1990
  • 84
Alternative adaptations, speciation, and phylogeny (A Review).
  • M. J. West-eberhard
  • Biology, Medicine
  • Proceedings of the National Academy of Sciences of the United States of America
  • 1986
  • 295
  • PDF
The Genetics of Adaptation: A Reassessment
  • 407
ESTIMATING THE FORM OF NATURAL SELECTION ON A QUANTITATIVE TRAIT
  • D. Schluter
  • Biology, Medicine
  • Evolution; international journal of organic evolution
  • 1988
  • 719
  • PDF
Theoretical genetics of Batesian mimicry II. Evolution of supergenes.
  • 113
Introduction to Quantitative Genetics
  • 9,072
...
1
2
...