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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
Extinct in the Wild (EW): captive individuals survive, and/or the species has been reintroduced outside its former natural range, but the species otherwise matches the criteria for "Extinct", such that no free-living, natural population is believed to exist. "Extirpated" is a term used for localized extinctions of extant species; it always ...
An endangered species is a species that is very likely to become extinct in the near future, either worldwide or in a particular political jurisdiction. Endangered species may be at risk due to factors such as habitat loss , poaching , invasive species , and climate change . [ 1 ]
Eight of the extinct bird species were found in Hawaii, including the Po`ouli, which was last seen in 2004. The Po`ouli is the most recently seen species of all 21 animals on the list.
As of December 2023, of the 157,190 species currently on the IUCN Red List, 9,760 of those are listed as critically endangered, with 1,302 being possibly extinct and 67 possibly extinct in the wild. [2] The IUCN Red List provides the public with information regarding the conservation status of animal, fungi, and plant species. [3]
The percentage of species in several groups which are documented as extinct, critically endangered, endangered, or vulnerable on the 2023 IUCN Red List. . The data for some groups are insufficient, so the plotted percentages can be much lower than the actual rates of vulnerabil
Silky sifaka (Propithecus candidus), fewer than 1,000 still alive. The World's 100 most threatened species [1] is a compilation of the most threatened animals, plants, and fungi in the world.
Such a taxon would thus be prone to the effects of human activities (or stochastic events whose impact is increased by human activities) within a very short period of time in an unforeseeable future, and is thus capable of becoming Critically Endangered or even Extinct in a very short period.