Antagonistic selection from predators and pathogens alters food-web structure.

  title={Antagonistic selection from predators and pathogens alters food-web structure.},
  author={Eric Edeline and Tamara Ben Ari and Leif Asbj\orn V\ollestad and Ian J. Winfield and Janice Mary Fletcher and Joseph B James and Nils Chr. Stenseth},
  journal={Proceedings of the National Academy of Sciences of the United States of America},
  volume={105 50},
Selection can alter predator-prey interactions. However, whether and how complex food-webs respond to selection remain largely unknown. We show in the field that antagonistic selection from predators and pathogens on prey body-size can be a primary driver of food-web functioning. In Windermere, U.K., pike (Esox lucius, the predator) selected against small perch (Perca fluviatilis, the prey), while a perch-specific pathogen selected against large perch. The strongest selective force drove perch… CONTINUE READING
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Density dependence and density independence in the demography and dispersal of pike over four decades

  • TO Haugen, IJ Winfield, LA Vøllestad, JM Fletcher, JB James
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