Refugial isolation versus ecological gradients

@article{Smith2004RefugialIV,
  title={Refugial isolation versus ecological gradients},
  author={Thomas C. B. Smith and Christopher J. Schneider and Karen Holder},
  journal={Genetica},
  year={2004},
  volume={112},
  pages={383-398}
}
Hypotheses for divergence and speciation in rainforests generally fall into two categories: those emphasizing the role of geographic isolation and those emphasizing the role of divergent selection along gradients. While a majority of studies have attempted to infer mechanisms based on the pattern of species richness and congruence of geographic boundaries, relatively few have tried to simultaneously test alternative hypotheses for diversification. Here we discuss four examples, taken from our… CONTINUE READING
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