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Department of Energy & Environmental Protection

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  • Current: Natural Diversity Data Base and Environmental Reviews

Natural Diversity Data Base and Environmental Reviews

Purple milkweed, a special concern plant.

Requests for Natural Diversity Data Base State-listed Species Reviews

Find out how to request an environmental review to determine the impact of proposed development projects on state-listed species. 

Natural Diversity  Data Base Maps

Natural Diversity Data Base maps show approximate locations of state-listed species and important natural communities in Connecticut, and are used to find areas of potential conservation concern.

Contribute Data on State-listed Species

Have you found a state-listed or rare plant, mammal, bird, reptile, amphibian, or invertebrate? Report it to DEEP's Natural Diversity Data Base.

Featured Links

  • CT's Endangered, Threatened, and Special Concern Species
  • Frequently Asked Questions About Environmental Reviews
  • Connecticut Endangered Species Act
  • DEEP Permits and Licenses
  • Natural Resources
  • Wildlife
  • Climate Change
  • Water Resources
  • Environmental Quality

Resources

  • State Listed Plants and Natural Communities by Town
  • The Vegetation of Connecticut: A Preliminary Classification, pub. 2006
  • Connecticut's 13 Most Imperiled Ecosystems
  • CT Endangered, Threatened, and Special Concern Species List
  • Endangered, Threatened, and Special Concern Species Fact Sheets
  • State-listed Species by County
  • DEEP Scientific Collector Permits
  • DEEP GIS Open Data Website
  • CTECO Environmental Conditions Online

Connect with Us

  • About the Natural Diversity Data Base
  • Contact the NDDB (Wildlife Division)
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  • CT Fish and Wildlife Instagram
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