An official website of the United States government.

The .gov means it's official.
Federal government websites always use a .gov or .mil domain. Before sharing sensitive information online, make sure you're on a .gov or .mil site by inspecting your browser's address (or "location") bar.

This site is also protected by an SSL (Secure Sockets Layer) certificate that's been signed by the U.S. government. The https:// means all transmitted data is encrypted - in other words, any information or browsing history that you provide is transmitted securely.

Thesaurus Search Results

threatened species
Subject Category
P Natural Resources, Earth and Environmental Sciences
Any species which is likely to become an endangered species within the foreseeable future throughout all or a significant portion of its range and which has been designated in the Federal Register by the Secretary of Interior as a threatened species. (Endangered Species Act of 1973) This includes species categorized as rare, very rare, or depleted.
Definition Source
Schwarz, Charles F.; Thor, Edward C.; Elsner, Gary H. 1976. Wildland planning glossary. Gen. Tech. Rep. PSW-13. Berkeley, Calif.: U.S. Department of Agriculture, Forest Service, Pacific Southwest Forest and Range Experiment Station
RDF/XML Format:
Persistent URI:
Used For
threatened animals
threatened birds
threatened fish
threatened herbs
threatened plants
Broader Term
biological resources
wildlife management
Narrower Term
endangered species
vulnerable species
Related Term
biological assessment
conservation banks
conservation credits
conservation status
data deficient species
Endangered Species Act of 1973
extinct species
fish and wildlife law
especies amenazadas
Term Number