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The Green Status or Species Recovery Category is expressed in words in the second version of the Green Status Assessment. It is based on the Green Score, also known as the Species Recovery Score, which is a point estimate (SRS best), with a corresponding confidence interval (bounded by SRS max and SRS min).
The IUCN Species Survival Commission (IUCN SSC) is one of the six commissions of the International Union for Conservation of Nature (IUCN). The Species Survival Commission, the largest of the IUCN's six commissions, is a science-driven network consisting of 9,000 volunteer experts working in more than 160 Specialist Groups, including 17 invertebrate groups, Red List Authorities, and Task Forces.
The International Union for Conservation of Nature (IUCN) is an international organization working in the field of nature conservation and sustainable use of natural resources. [3] Founded in 1948, IUCN has become the global authority on the status of the natural world and the measures needed to safeguard it.
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
status_system IUCN3.1 global? Yes (except "stocks and populations") status EX EW CR EN VU NT LC DD NE PE PEW status_ref {{}}Link (criteria) (search) Notes PE and PEW (Probably Extinct and Probably Extinct in the Wild) are not official IUCN categories, but PE has been adopted by Birdlife International, and the terms appear within the IUCN Red List entries.
Species in Chromista (IUCN, 2021-2) 15 extant species have been evaluated; 6 of those are fully assessed [a] 0 are not threatened at present [b] 6 to 15 are threatened [c] 0 to 4 are extinct or extinct in the wild: 0 extinct (EX) species; 0 extinct in the wild (EW) 4 possibly extinct [CR(PE)] 0 possibly extinct in the wild [CR(PEW)]
The IUCN Categories and Criteria were initially designed to assess the conservation status of species globally, however there was a demand for guidelines to apply the system at the regional level. In 2003, IUCN developed a set of transparent, quantitative criteria to assess the conservation status of species at the regional and national level.
An endangered species recovery plan, also known as a species recovery plan, species action plan, species conservation action, or simply recovery plan, is a document describing the current status, threats and intended methods for increasing rare and endangered species population sizes. Recovery plans act as a foundation from which to build a ...