Phenotypic evolution of dispersal-enhancing traits in insular voles.

  title={Phenotypic evolution of dispersal-enhancing traits in insular voles.},
  author={Anders Forsman and Juha Meril{\"a} and Torbj{\"o}rn Ebenhard},
  journal={Proceedings. Biological sciences},
  volume={278 1703},
Evolutionary theory predicts that in metapopulations subject to rapid extinction-recolonization dynamics, natural selection should favour evolution of traits that enhance dispersal and recolonization ability. Metapopulations of field voles (Microtus agrestis) on islands in the Stockholm archipelago, Sweden, are characterized by frequent local extinction and recolonization of subpopulations. Here, we show that voles on the islands were larger and had longer feet than expected for their body size… CONTINUE READING

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