Coevolving parasites enhance the diversity-decreasing effect of dispersal.

  title={Coevolving parasites enhance the diversity-decreasing effect of dispersal.},
  author={Tom Vogwill and Andy Fenton and Michael A Brockhurst},
  journal={Biology letters},
  volume={7 4},
High dispersal rates between patches in spatially structured populations can impede diversification and homogenize diversity. These homogenizing effects of dispersal are likely to be enhanced by coevolving parasites that impose strong selection on hosts for resistance. However, the interactive effects of dispersal and parasites on host diversification have never been tested. We used spatially structured, experimental populations of the bacterium Pseudomonas fluorescens, cultured with or without… CONTINUE READING

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