Population differentiation and restricted gene flow in Spanish crossbills: not isolation-by-distance but isolation-by-ecology.

@article{Edelaar2012PopulationDA,
  title={Population differentiation and restricted gene flow in Spanish crossbills: not isolation-by-distance but isolation-by-ecology.},
  author={Pim Edelaar and David Alonso and Sander Lagerveld and Juan Carlos Senar and Mats Bj{\"o}rklund},
  journal={Journal of evolutionary biology},
  year={2012},
  volume={25 3},
  pages={417-30}
}
Divergent selection stemming from environmental variation may induce local adaptation and ecological speciation whereas gene flow might have a homogenizing effect. Gene flow among populations using different environments can be reduced by geographical distance (isolation-by-distance) or by divergent selection stemming from resource use (isolation-by-ecology). We tested for and encountered phenotypic and genetic divergence among Spanish crossbills utilizing different species of co-occurring pine… CONTINUE READING