Evolution of Reproductive Isolation in Allopatric and Sympatric Populations

@article{Soans1974EvolutionOR,
  title={Evolution of Reproductive Isolation in Allopatric and Sympatric Populations},
  author={A. B. Soans and D. Pimentel and J. Soans},
  journal={The American Naturalist},
  year={1974},
  volume={108},
  pages={117 - 124}
}
Experiments were designed to measure the rate of evolution in sympatric (30% gene flow) and allopatric populations of houseflies under similar types of divergent selection (+ or - geotaxis). Under 5% selective pressure on both sympatric and allopatric populations, both diverged rapidly, with the allopatric populations evolving slightly faster during the 38 generations of the experiment. Incipient reproductive isolation occurred in both sympatric and allopatric population systems. In one test, a… Expand
Effective population size may limit the power of laboratory experiments to demonstrate sympatric and parapatric speciation
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