The colonization of native phytophagous insects in North America by exotic parasitoids

@article{Hawkins1997TheCO,
  title={The colonization of native phytophagous insects in North America by exotic parasitoids},
  author={Bradford A. Hawkins and Paul C. Marino},
  journal={Oecologia},
  year={1997},
  volume={112},
  pages={566-571}
}
Classical biological control could have a major environmental cost if introduced natural enemies colonize and disrupt native systems. Although quantifying these impacts is difficult for systems already colonized by natural enemies, the a priori condition for such impacts can be evaluated based on the extent to which exotics have acquired native hosts. We use native host records for exotic parasitoids introduced into North America for biological control to document the number of exotic species… CONTINUE READING
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