INI

IUCN Red List Categories - INI

The IUCN Red List, established by the International Union for Conservation of Nature (IUCN) in 1964, is the world's most comprehensive information source on the extinction risk of species. It classifies species into nine categories (Extinct, Extinct in the Wild, Critically Endangered, Endangered, Vulnerable, Near Threatened, Least Concern, Data Deficient, Not Evaluated) to objectively assess their risk of extinction in the wild. The three categories CR, EN, and VU are collectively called 'threatened species' and are widely used to prioritize conservation efforts.

IUCN Red List threatened species biodiversity conservation environment ecosystem wildlife plants

[item.extinct]
code=EX
slug=extinct
name=Extinct
description=There is no reasonable doubt that the last individual has died.
order=1
riskLevel=extinct

[item.extinct-in-the-wild]
code=EW
slug=extinct-in-the-wild
name=Extinct in the Wild
description=Known only to survive in captivity, cultivation, or as a naturalized population outside its past range.
order=2
riskLevel=extinct

[item.critically-endangered]
code=CR
slug=critically-endangered
name=Critically Endangered
description=Facing an extremely high risk of extinction in the wild.
order=3
riskLevel=threatened

[item.endangered]
code=EN
slug=endangered
name=Endangered
description=Facing a very high risk of extinction in the wild.
order=4
riskLevel=threatened

[item.vulnerable]
code=VU
slug=vulnerable
name=Vulnerable
description=Facing a high risk of extinction in the wild.
order=5
riskLevel=threatened

[item.near-threatened]
code=NT
slug=near-threatened
name=Near Threatened
description=Close to qualifying for or likely to qualify for a threatened category in the near future.
order=6
riskLevel=near-threatened

[item.least-concern]
code=LC
slug=least-concern
name=Least Concern
description=Widespread and abundant species with a low risk of extinction.
order=7
riskLevel=least-concern

[item.data-deficient]
code=DD
slug=data-deficient
name=Data Deficient
description=Inadequate information to make a direct or indirect assessment of extinction risk.
order=8
riskLevel=unknown

[item.not-evaluated]
code=NE
slug=not-evaluated
name=Not Evaluated
description=Has not yet been evaluated against the criteria.
order=9
riskLevel=unknown