On the origin of species by sympatric speciation

@article{Dieckmann1999OnTO,
  title={On the origin of species by sympatric speciation},
  author={Ulf Dieckmann and Michael Doebeli},
  journal={Nature},
  year={1999},
  volume={400},
  pages={354-357}
}
Understanding speciation is a fundamental biological problem. It is believed that many species originated through allopatric divergence, where new species arise from geographically isolated populations of the same ancestral species. In contrast, the possibility of sympatric speciation (in which new species arise without geographical isolation) has often been dismissed, partly because of theoretical difficulties,. Most previous models analysing sympatric speciation concentrated on particular… 
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