Threatened species

Conservation status
by IUCN Red List category
Conservation status by IUCN Red List category
Extinct
Extinct (EX); Extinct in the Wild (EW);	(list); (list);
Threatened
Critically Endangered (CR); Endangered (EN); Vulnerable (VU);	(list); (list); (list);
Lower Risk
Near Threatened (NT); Conservation Dependent (CD); Least Concern (LC);	(list); (list);
	Other categories
Data Deficient (DD); Not Evaluated (NE);	(list)
	Related topics International Union for; Conservation of Nature (IUCN); IUCN Red List; NatureServe status; Lists of organisms by population;
	; Comparison of Red List classes above; and NatureServe status below;

Threatened species are any species (including animals, plants and fungi) which are vulnerable to extinction in the near future. Species that are threatened are sometimes characterised by the population dynamics measure of critical depensation, a mathematical measure of biomass related to population growth rate. This quantitative metric is one method of evaluating the degree of endangerment without direct reference to human activity.

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Conservation status by IUCN Red List category

Extinct
Extinct (EX) Extinct in the Wild (EW)	(list) (list)
Threatened
Critically Endangered (CR) Endangered (EN) Vulnerable (VU)	(list) (list) (list)
Lower Risk
Near Threatened (NT) Conservation Dependent (CD) Least Concern (LC)	(list) (list)
Other categories
Data Deficient (DD) Not Evaluated (NE)	(list)
Related topics International Union for Conservation of Nature (IUCN) IUCN Red List NatureServe status Lists of organisms by population
Comparison of Red List classes above and NatureServe status below