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  Wetlands

THREATENED AND ENDANGERED SPECIES

A large variety of organisms depend upon wetlands in some manner for their survival. Illinois, unfortunately, has lost over 90 percent of its original wetlands. As a result, many of the State's native plant and animal species that depend upon wetlands have become threatened or endangered. Already, approximately 35 wetland plant species have become extirpated from the state. The following statistics reflect how critical Illinois' remaining wetland acres are to the survival of the state's biological resources.

  • Approximately 47 of the 95 vertebrate species listed as threatened or endangered in Illinois use wetlands at least some time during their life.
  • Six of the eight mammal species listed as threatened or endangered in Illinois use wetlands to some extent.
  • Three of the seven amphibian species listed as threatened or endangered in Illinois depend on wetlands.
  • Eight of the 15 reptile species listed as threatened or endangered in Illinois use wetlands to some extent.
  • Four of the 31 fish species listed as threatened or endangered either live or breed in wetlands.
  • 26 of the 34 Bird species listed as threatened or endangered in Illinois are strongly associated with wetlands.

Approximately 18 percent of Illinois' native wetland plant species are listed as threatened or endangered (Illinois Department of Natural Resources 1994 and State of Illinois 1998).

[ Introduction | Biological Functions | Threatened & Endangered Species | Hydrological Functions |  Water Quality | Ground Water Recharge | Terrestrial Functions | Aesthetics & Recreation   |  Economics | Conclusion ]

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Wetlands

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 Literature Cited

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