Species InformationListed Species in the Upper Midwest Listed Species' Ranges by State and County Featured SpeciesEndangered Species ActContacts
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5-Year ReviewsCompleted 5-Year Reviews:
5-Year Reviews Initiated:
A Brief Explanation of 5-Year Reviews:Five-year reviews of listed species are required by the Endangered Species Act (section 4(c)(2)). These reviews include evaluations of all new population status information and threats to the subject species.
The U.S. Fish and Wildlife Service (Service) conducts these periodic reviews to ensure the listing classification of a species as threatened or endangered is accurate. A review includes evaluations of the best scientific and commercial information that has become available since the original listing determination or last review, such as: species biology, habitat conditions, conservation measures, and threat status and trends. The Service publishes a notice in the Federal Register announcing the initiation of these reviews and provides the public an opportunity to submit relevant information regarding the species and its threats.
A 5-year review is intended to evaluate whether a change in a species listing classification is warranted. Changes in classification recommended in a 5-year review could include delisting, reclassification from threatened to endangered (i.e., uplisting), reclassification from endangered to threatened (i.e., downlisting), or no change is warranted at this time. The 5-year review does not involve rule-making, so no change to a species classification is made at the time a review is completed. If a change is recommended in the completed review, the Service would need to initiate a separate rule-making process to propose the change.
The
Endangered Species Act defines the term endangered species
to mean any species that is in danger of extinction throughout all
or a significant portion of its range. The term threatened
species means any species that is at risk of becoming endangered
within the foreseeable future, throughout all or a significant portion
of its range. In referring to these definitions, the Service determines
whether a species is endangered or threatened based on one or more
of the following five factors as outlined under section 4(a)(1)
of the ESA:
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