A test of alternative hypotheses for the evolution of reproductive isolation between spadefoot toads: support for the reinforcement hypothesis.

@article{Pfennig2003ATO,
  title={A test of alternative hypotheses for the evolution of reproductive isolation between spadefoot toads: support for the reinforcement hypothesis.},
  author={Karin S Pfennig},
  journal={Evolution; international journal of organic evolution},
  year={2003},
  volume={57 12},
  pages={2842-51}
}
  • Karin S Pfennig
  • Published 2003 in
    Evolution; international journal of organic…
How do species that interbreed become reproductively isolated? If hybrids are less fit than parental types, natural selection should promote reproductive isolation by favoring the evolution of premating mechanisms that prevent hybridization (a process termed reinforcement). Although reinforcement should generate a decline in hybridization over time, countervailing forces of gene flow and recombination are thought to preclude natural selection from enhancing and finalizing reproductive isolation… CONTINUE READING
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