List of critically endangered reptiles

As of September 2016, the International Union for Conservation of Nature (IUCN) lists 196 critically endangered reptile species, including 17 which are tagged as possibly extinct.[1][2] 3.8% of all evaluated reptile species are listed as critically endangered. The IUCN also lists 12 reptile subspecies as critically endangered.

196 critically endangered reptile species (3.8%)382 endangered reptile species (7.4%)411 vulnerable reptile species (8.0%)329 near threatened reptile species (6.4%)2900 least concern reptile species (57%)910 data deficient reptile species (18%)

Reptile species (IUCN, 2016-2)
  • 5130 extant species have been evaluated
  • 4220 of those are fully assessed[lower-alpha 1]
  • 3229 are not threatened at present[lower-alpha 2]
  • 989 to 1899 are threatened[lower-alpha 3]
  • 26 to 43 are extinct or extinct in the wild:
    • 24 extinct (EX) species[lower-alpha 4]
    • 2 extinct in the wild (EW)
    • 17 possibly extinct [CR(PE)]
    • 0 possibly extinct in the wild [CR(PEW)]
  1. excludes data deficient evaluations.
  2. NT, LR/cd, LC.
  3. Threatened comprises CR, EN and VU. Upper estimate additionally includes DD.
  4. Chart omits extinct (EX) species
Critically Endangered (CR) species face an extremely high risk of extinction in the wild.

Of the subpopulations of reptiles evaluated by the IUCN, ten species subpopulations have been assessed as critically endangered.

Additionally 910 reptile species (18% of those evaluated) are listed as data deficient, meaning there is insufficient information for a full assessment of conservation status. As these species typically have small distributions and/or populations, they are intrinsically likely to be threatened, according to the IUCN.[3] While the category of data deficient indicates that no assessment of extinction risk has been made for the taxa, the IUCN notes that it may be appropriate to give them "the same degree of attention as threatened taxa, at least until their status can be assessed."[4]

This is a complete list of critically endangered reptile species and subspecies evaluated by the IUCN. Species considered possibly extinct by the IUCN are marked as such. Species and subspecies which have critically endangered subpopulations (or stocks) are indicated.

Turtles and tortoises

There are 40 species, four subspecies, and three subpopulations of turtle assessed as critically endangered.

Cheloniids

Species

Subpopulations

Tortoises

Species

Subspecies

  • Testudo graeca nikolskii

Geoemydids

Trionychids

Species

Subspecies

  • Black spiny softshell turtle (Apalone spinifera atra)

Subpopulations

  • African softshell turtle (Trionyx triunguis) (1 subpopulation)

Other turtles

Species

Subspecies

  • Seychelles yellow-bellied mud turtle (Pelusios castanoides intergularis)
  • Seychelles black mud turtle (Pelusios subniger parietalis)

Subpopulations

Crocodilia species

Lizards

There are 110 species, four subspecies, and one subpopulation of lizard assessed as critically endangered.

Iguanids

Includes iguanas and related species.

Species

Subspecies

Subpopulations

Anguids

Includes slowworms, glass lizards, and alligator lizards.

Chameleons

Gekkonids

Wall lizards

Skinks

Other lizard species

Snakes

Species

Subspecies

  • Dipsas albifrons cavalheiroi
  • Sardinian grass snake (Natrix natrix cetti)
  • Natrix natrix schweizeri
  • Moldavian meadow viper (Vipera ursinii moldavica)

See also

References
  1. "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.
  2. "Table 9: Possibly Extinct and Possibly Extinct in the Wild Species (IUCN Red List version 2016-2)". The IUCN Red List of Threatened Species. Union for Conservation of Nature and Natural Resources (IUCN). Retrieved 8 September 2016.
  3. "Limitations of the Data". The IUCN Red List of Threatened Species. Union for Conservation of Nature and Natural Resources (IUCN). Retrieved 11 January 2016.
  4. "2001 Categories & Criteria (version 3.1)". The IUCN Red List of Threatened Species. Union for Conservation of Nature and Natural Resources (IUCN). Retrieved 11 January 2016.
This article is issued from Wikipedia. The text is licensed under Creative Commons - Attribution - Sharealike. Additional terms may apply for the media files.