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Introduction  

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1998-1999 Survey of The Nature Conservancy

  • 110 TNC staff from 50 states responded
  • 49% said INVASIVE PLANTS were among the top 3 threats
  • 84% said INVASIVE PLANTS were among the top 10 threats
  • Only 5% said INVASIVE PLANTS were not a problem
  • 271 INVASIVE PLANT taxa were reported
A 1998 survey of land managers of The Nature Conservancy supplied corroborating evidence regarding the severity of the threat posed by invasions by non-native plants.
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Updated January 2005
©The Nature Conservancy, 2003