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The IUCN Red List Categories and Criteria are intended to be an easily and widely understood system for classifying species at high risk of global extinction. It divides species into nine categories: Not Evaluated, Data Deficient, Least Concern, Near Threatened, Vulnerable, Endangered, Critically Endangered, Extinct in the Wild and Extinct .
Species assessed as Critically Endangered (CR), Endangered (EN), or Vulnerable (VU) are referred to as "threatened" species. However, Extinct in the Wild (EW) species can move into the threatened categories following successful reintroduction. Therefore, EW species should be included when reporting proportions of threatened species.
Oct 6, 2023 · Critically endangered species means a species numbers have decreased, or will decrease by 80% within three generations. It is therefore considered to be facing an extremely high risk of extinction in the wild. Endangered (EN) species. Endangered (EN) species is a population of organisms which is at risk of becoming extinct because it is either ...
Today, these tree-dwelling primates are critically endangered with fewer than 800 individuals in the wild, making them the most endangered great ape species in the world. The loss of habitat is one of the main threats to its survival as tropical forests are being replaced by agriculture, mining, and hydroelectric and geothermal development.
Critically Endangered Species: Transcaucasian Racerunner The Transcaucasian racerunner (Eremias pleskei) is a lizard found on the Armenian Plateau, located in Armenia, Azerbaijan, Iran, and Turkey. The Transcaucasian racerunner is a critically endangered species because of a huge population decline, estimated at more than 80 percent during the past 10 years.
Four-toed river terrapin or River terrapin (Batagur baska) is a critically endangered turtle. The omnivorous diet of the river terrapin and other terrapin species, makes them an essential part of the effi cient clean-up systems of aquatic habitats. Habitat: Freshwater rivers and lakes.
Mar 25, 2021 · Gland, Switzerland, 25 March 2021 (IUCN) - Following population declines over several decades due to poaching for ivory and loss of habitat, the African forest elephant (Loxodonta cyclotis) is now listed as Critically Endangered and the African savanna elephant (Loxodonta africana) as Endangered on the IUCN Red List of Threatened Species™. Before today’s update, African elephants were treated as a single species, listed as Vulnerable; this is the first time the two species have been ...
