List of critically endangered reptiles

Extinct, since 1500: 21 species Extinct in the wild (EW): 1 species Critically endangered (CR): 180 species Endangered (EN): 361 species Vulnerable (VU): 403 species Near threatened (NT, LR/cd): 318 species Least concern (LC): 2,518 species Data deficient (DD): 867 speciesCircle frame.svg
  •   Extinct, since 1500: 21 species
  •   Extinct in the wild (EW): 1 species
  •   Critically endangered (CR): 180 species
  •   Endangered (EN): 361 species
  •   Vulnerable (VU): 403 species
  •   Near threatened (NT, LR/cd): 318 species
  •   Least concern (LC): 2,518 species
  •   Data deficient (DD): 867 species
Reptile species (IUCN, 2015.4)
  • 4669 species have been evaluated
  • 3802 are fully assessed (excludes DD)
  • 2836 are not threatened at present (LC, NT, LR/cd)
  • 944 are threatened (CR, EN, VU)
  • 22 to 38 are extinct or extinct in the wild (EX, EW, CR(PE), CR(PEW))
Critically Endangered (CR) species face an extremely high risk of extinction in the wild.

As of February 2016, the International Union for Conservation of Nature (IUCN) lists 180 critically endangered reptile species, including 16 which are tagged as possibly extinct.[1][2] 3.9% of all evaluated reptile species are listed as critically endangered. The IUCN also lists 13 reptile subspecies as critically endangered.

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

Additionally 867 reptile species (19% 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 as evaluated by the IUCN. Species considered possibly extinct by the IUCN are marked as such. Species or subspecies which have critically endangered subpopulations (or stocks) are indicated. Where possible common names for taxa are given while links point to the scientific name used by the IUCN.

Turtles

Species

Subspecies

  • Cuatro Cienegas softshell
  • Espanola giant tortoise
  • Chestnut-bellied mud turtle
  • Seychelles black mud turtle
  • Testudo graeca nikolskii

Subpopulations

Crocodilia species

Squamata

There are 141 species and eight subspecies in the order Squamata assessed as critically endangered. There are also subpopulations of species in the order Squamata assessed as critically endangered.

Iguanids

Species

Subspecies

Subpopulations

Chameleons

Lacertids

Gekkonids

Skinks

Viperids

Species

Subspecies

Dipsadids

Species

  • Antiguan racer
  • Enulius bifoveatus
  • Lacépède's ground snake
  • Geophis damiani
  • Jamaican racer
  • Omoadiphas cannula (possibly extinct)
  • Omoadiphas texiguatensis
  • Rhadinella tolpanorum
  • Sibon merendonensis
  • Viquez's tropical ground snake (possibly extinct)

Subspecies

Colubrids

Other Squamata

Species

Subspecies

See also

References

  1. ↑ "IUCN Red List version 2015.4". The IUCN Red List of Threatened Species. International Union for Conservation of Nature and Natural Resources (IUCN). Retrieved 19 February 2016.
  2. ↑ "Table 9: Possibly Extinct and Possibly Extinct in the Wild Species (IUCN Red List version 2015.4)". The IUCN Red List of Threatened Species. Union for Conservation of Nature and Natural Resources (IUCN). Retrieved 19 November 2015.
  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 - version of the Wednesday, March 09, 2016. The text is available under the Creative Commons Attribution/Share Alike but additional terms may apply for the media files.