A plant or animal species can receive protections provided by the Endangered Species Act (ESA) if it is on the federal lists of endangered and threatened wildlife and plants. The List of Endangered and Threatened Wildlife (50 CFR 17.11) and the List of Endangered and Threatened Plants (50 CFR 17.12) contain the names of all species that either we or the National Marine Fisheries Service (for most marine life) have been found to be in the greatest need of federal protection.
When evaluating whether a species is endangered or threatened, we consider the following five factors:
When one or more of these factors imperils the survival of a species, we take action to list the species as endangered or threatened to ensure the appropriate protective measures apply. Using these factors, we also assess species already listed to determine whether they should be reclassified from threatened to endangered and whether threats have been reduced or eliminated to the point the species should be reclassified from endangered to threatened or removed from the list.
When a domestic species is proposed for listing as endangered or threatened, we identify specific areas within the United States that contain the physical or biological features essential to its conservation. These areas are the species’ critical habitat. The ESA requires the designation of critical habitat when it is both “prudent and determinable,” terms that are defined in the ESA.
Like the domestic listing side of the program, foreign species classification involves determining the status of foreign species and whether they should be added to the federal list of endangered and threatened wildlife and plants to receive protections provided by the ESA. It also involves assessing foreign species already listed as threatened or endangered to determine whether they should be reclassified from threatened to endangered, reclassified from endangered to threatened, or removed from the list (delisted) once recovery goals have been met.
By regulating the activities of American citizens and residents with regard to foreign listed species, the ESA helps to ensure that people under the jurisdiction of the United States do not contribute to the further decline of these species. Without permits consistent with the conservation goals of the ESA, activities such as the import or export of endangered or threatened species are unlawful.
View the complete list of foreign species listed as endangered or threatened under the ESA.
