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The IUCN Red List of Threatened Species by the International Union for Conservation of Nature is the best known worldwide conservation status listing and ranking system. . Species are classified by the IUCN Red List into nine groups set through criteria such as rate of decline, population size, area of geographic distribution, and degree of population and distribution fragmenta
Globally, the North American porcupine is listed as a species of least concern. [47] It is common throughout its range except in some U.S. states in the southeast part of its range. For example, it is listed as a species in need of conservation in Maryland. [48] [49] As of 1999, 15 remnant populations remain scattered throughout north-central ...
In 1967, the American alligator was listed as an endangered species (under a law that was the precursor to the Endangered Species Act of 1973), since it was believed to be in danger of extinction throughout all or a significant portion of its range. [79]
An endangered species is a species ... A proportional symbol map of each state's endangered species count ... The phenomenon of species shifting their ranges in ...
Russ Mittermeier, chief of Swiss-based IUCN's Primate Specialist Group, stated that 16,306 species are endangered with extinction, 188 more than in 2006 (total of 41,415 species on the Red List). The Red List includes the Sumatran orangutan ( Pongo abelii ) in the Critically Endangered category and the Bornean orangutan ( Pongo pygmaeus ) in ...
Endangered and Threatened Species DPS and ESU U.S. range for Steelhead and Salmon. The National Oceanic and Atmospheric Administration, in cooperation with the U.S. Fish and Wildlife Service and Environmental Protection Agency, groups steelhead and salmon into distinct population segments (DPS).
An IUCN Red List critically endangered (CR or sometimes CE) species is one that has been categorized by the International Union for Conservation of Nature as facing an extremely high risk of extinction in the wild. [1] As of 2021, of the 120,372 species currently tracked by the IUCN, there are 8,404 species that are considered to be critically ...
[11] [12] Under the Endangered Species Act of 1973, the U.S. Fish and Wildlife Service recognizes the red wolf as an endangered species and grants it protected status. [3] Since 1996, the IUCN has listed the red wolf as a Critically Endangered species; [2] however, it is not listed in the CITES Appendices of endangered species. [13]