Alien plant invasions and native plant extinctions: a six-threshold framework

  title={Alien plant invasions and native plant extinctions: a six-threshold framework},
  author={Paul O. Downey and David M. Richardson},
  booktitle={AoB PLANTS},
Biological invasions are widely acknowledged as a major threat to global biodiversity. Species from all major taxonomic groups have become invasive. The range of impacts of invasive taxa and the overall magnitude of the threat is increasing. Plants comprise the biggest and best-studied group of invasive species. There is a growing debate; however, regarding the nature of the alien plant threat-in particular whether the outcome is likely to be the widespread extinction of native plant species… CONTINUE READING
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