Threatened species

Encyclopedia : T : TH : THR : Threatened species

the risk of extinction
Conservation status

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Threatened species

Vulnerable • list
Endangered • list
Critically Endangered • list

Extinction

Extinct • plants • animals
Recently extinct • list
Extinct in the wild • list

Lower risk

Near threatened • list
Conservation dependent • list Least concern • list

Organisations

World Conservation Union (IUCN)

See also

IUCN Red List

Threatened species, as a conservation status, are animal and plant species which are at risk of being extinct. Threatened species includes all species which are vulnerable, endangered or critically endangered. In many areas, this is referred to as a red-listed species.

Critically endangered is the most threatened of the three classifications, with one of the five possible criteria of the IUCN Red List being that there are simply fewer than 50 mature individuals.

Vulnerable is the least threatened of the three classifications, with possible criteria including: an estimated population of fewer than 1000 mature individuals; or fewer than 10,000 mature individuals with extreme fluctuations in the numbers.

External links

[World Conservation Union threatened species list]

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