- Extinct in the wild (EW): 2 species
- Critically endangered (CR): 203 species
- Endangered (EN): 505 species
- Vulnerable (VU): 536 species
- Near threatened (NT): 345 species
- Least concern (LC): 3,306 species
- Data deficient (DD): 872 species
Mammalian species (IUCN, 2020-1)
- 5850 extant species have been evaluated
- 4978 of those are fully assessed[a]
- 3651 are not threatened at present[b]
- 1244 to 2116 are threatened[c]
- 81 to 83 are extinct or extinct in the wild:
- 81 extinct (EX) species[d]
- 2 extinct in the wild (EW)
- 0 possibly extinct [CR(PE)]
- 0 possibly extinct in the wild [CR(PEW)]
- ^ excludes data deficient evaluations.
- ^ NT and LC.
- ^ Threatened comprises CR, EN and VU. Upper estimate additionally includes DD.
- ^ Chart omits extinct (EX) species
In September 2016, the International Union for Conservation of Nature (IUCN) listed 783 data deficient mammalian species.[1] Of all evaluated mammalian species, 14% are listed as data deficient. The IUCN also lists 30 mammalian subspecies as data deficient.
Of the subpopulations of mammals evaluated by the IUCN, four species and/or subpopulations have been assessed as data deficient.
This is a complete list of data deficient mammalian species and subspecies evaluated by the IUCN. Species and subspecies which have data deficient subpopulations (or stocks) are indicated. Where possible common names for taxa are given while links point to the scientific name used by the IUCN.
- ^ "IUCN Red List version 2016-2". The IUCN Red List of Threatened Species. International Union for Conservation of Nature and Natural Resources (IUCN). Retrieved 8 September 2016.