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No least concern assessments have been made for taxa of other kingdoms. Lists: Animals (kingdom Animalia) Amphibians — List of least concern amphibians; Birds — List of least concern birds; Fish — List of least concern fishes; Invertebrates — List of least concern invertebrates. Arthropods — List of least concern arthropods
A least-concern species is a species that has been evaluated and categorized by the International Union for Conservation of Nature (IUCN) as not being a focus of wildlife conservation because the specific species is still plentiful in the wild. They do not qualify as threatened, near threatened, or (before 2001) conservation dependent. Species ...
The IUCN also lists 131 subspecies and 118 varieties as least concern. No subpopulations of plants have been evaluated by the IUCN. This is a complete list of least concern plant species, subspecies and varieties evaluated by the IUCN.
The Red List Index (sampled approach) (SRLI) has been developed in order to determine the threat status and also trends of lesser-known and less charismatic species groups. It is a collaboration between IUCN members and is coordinated through the Institute of Zoology (IoZ), the research division of the Zoological Society of London (ZSL).
The IUCN Red List of Threatened Species by the International Union for Conservation of Nature is the best known worldwide conservation status listing and ranking system. . Species are classified by the IUCN Red List into nine groups set through criteria such as rate of decline, population size, area of geographic distribution, and degree of population and distribution fragmenta
IUCN Red List categories; Conservation status EX Extinct (0 species) EW Extinct in the wild (0 species) CR Critically Endangered (0 species) EN Endangered (5 species) VU Vulnerable (13 species) NT Near threatened (7 species) LC Least concern (14 species) Other categories DD Data deficient (0 species) NE Not evaluated (2 species)
On 12 March 2010, the IUCN Red List of Threatened Species identified 3829 (2657 Animalia, 1172 Plantae) near threatened species, subspecies and varieties, stocks and sub-populations.
The IUCN also lists 244 subspecies and 235 varieties as Vulnerable. No subpopulations of plants have been evaluated by the IUCN. For a species to be assessed as vulnerable to extinction the best available evidence must meet quantitative criteria set by the IUCN designed to reflect "a high risk of extinction in the wild".