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This list is of Red Lists, Red Data Books, and related initiatives that assess and document the extinction risk of species, whether on an international or more local level (regional Red Lists). The IUCN has published a set of Guidelines for Application of the IUCN Red List Criteria at Regional and National Levels and at least 113 countries have ...
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
Creates a summary box on the right side of the page containing summary information about IUCN Red List categories for species on that page. Intended for articles or lists about groupings of species, such as list of felids.
The basis of the IUCN Red List of Ecosystems are the IUCN Red List of Ecosystems Categories and Criteria, a set of eight categories and five criteria that provide a consistent method for assessing an ecosystem's risk of collapse. They are designed to be: broadly applicable across type ecosystems and geographic areas, transparent and ...
Examples: Ring-tailed Lemur, Great White Shark, Royal Poinciana. Endangered (EN): faces a high risk of extinction in the near future. Examples: Blue Whale, Desert Bighorn Sheep, Giant Panda, Black-footed ferret (still "EW" on the IUCN Red List because last reviewed in 1996; currently EN according to ESA or G1 according to the more precise TNC G ...
Comparing the number of species in each category of IUCN Red List 1994 IUCN Red List categories (version 2.3), used for species which have not been reassessed since 2001. There have been a number of versions, dating from 1991, including: [29] [30] Version 1.0 (1991) Version 2.0 (1992) Version 2.1 (1993) Version 2.2 (1994) Version 2.3 (1994)
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 ...
As the IUCN Red List does not consider a species extinct until extensive targeted surveys have been conducted, species that are possibly extinct are still listed as critically endangered. IUCN maintains a list [ 5 ] of "possibly extinct" and "possibly extinct in the wild" species, modelled on categories used by BirdLife International to ...