Categories due to the IUCN Red List of Threatened Species.
The International Union for Conservation of Nature (IUCN) was established in 1948 and the Red List was established in 1964.
The IUCN Red List provides the conservation status of plant and animal species around the world. It assigns a specific category to each of the evaluated species. The categories are as follows:
- Extinct (EX) - Beyond reasonable doubt that the species is no longer extant.
- Extinct In The Wild (EW) - Known only to survive in captivity, or as a naturalized population outside its historic range.
- Critically endangered (CR) - At a very high risk of extinction.
- Endangered (EN) - High risk of extinction in the wild.
- Vulnerable (VU) - High risk of endangerment in the wild.
- Near threatened (NT) - Likely to become endangered in the near future.
- Least concern (LC) - Lowest risk. Does not qualify for a more at-risk category
- Data deficient (DD) - Not enough data to make an assessment of its risk of extinction.
- Not evaluated (NE) - Has not yet been evaluated against the criteria.
Some links for further information and facts, for example:
- https://www.iucnredlist.org/resources/categories-and-criteria or
- http://datazone.birdlife.org/species/search or
- IUCN Classification : Critically Endangered, Endangered and Vulnerable (clearias.com) or
- http://datazone.birdlife.org/species/search or
- IUCN Red List - Wikipedia or
(last visit of the sites: 12. March 2023)