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Changes to the list of Endangered, Threatened & Special Concern species

Reviewing the status of rare and vulnerable species in Massachusetts.

The status of rare and vulnerable species in Massachusetts is dynamic and may change due to many factors such as:

  • our knowledge about their status in the state;
  • changes in biological populations; and
  • our understanding of their habitat requirements. 

Thus, the status of species on the Massachusetts List of Endangered (E), Threatened (T) and Special Concern Species (SC) is reviewed periodically and some changes may therefore be recommended.   

Listing species in Massachusetts is based on three primary factors:

  1. species rarity,
  2. population trends, and
  3. threats to the species in Massachusetts.  

For more information, please read:  Listing Endangered Species in Massachusetts: The Basis, Criteria and Procedure for Listing Endangered, Threatened and Special Concern Species

Species Listing Proposal Form

List change proposals will be posted here when they are available.

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