List of endangered reptiles

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Circle frame.svg2 extinct in the wild reptile species (0.04%)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
Endangered (EN) species are considered to be facing a very high risk of extinction the wild. Status iucn3.1 EN.svg
Endangered (EN) species are considered to be facing a very high risk of extinction the wild.

In September 2016, the International Union for Conservation of Nature (IUCN) listed 382 endangered reptile species. [1] Of all evaluated reptile species, 7.4% are listed as endangered. The IUCN also lists nine reptile subspecies as endangered.

Contents

Of the subpopulations of reptiles evaluated by the IUCN, one species subpopulation has been assessed as endangered.

For a species to be considered endangered by the IUCN it must meet certain quantitative criteria which are designed to classify taxa facing "a very high risk of extinction". An even higher risk is faced by critically endangered species, which meet the quantitative criteria for endangered species. Critically endangered reptiles are listed separately. There are 578 reptile species which are endangered or 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. [2] 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". [3]

This is a complete list of endangered reptile species and subspecies evaluated by the IUCN. Species and subspecies which have endangered subpopulations (or stocks) are indicated.

Turtles and tortoises

There are 44 species, one subspecies, and one subpopulation of turtle assessed as endangered.

Cheloniids

Species

Subpopulations

Tortoises

Species

Subspecies

Geoemydids

Trionychids

Chelids

Emydids

Lizards

There are 241 species and seven subspecies of lizard assessed as endangered.

Iguanids

Includes iguanas and related species.

Species

Subspecies

Anguids

Includes slowworms, glass lizards, and alligator lizards.

Diplodactylids

Chameleons

Anoles

Gekkonids

Wall lizards

Skinks

Species

Subspecies

Spectacled lizards

Sphaerodactylids

Phrynosomatids

Liolaemids

Other lizard species

Snakes

There are 97 species and one subspecies of snake assessed as endangered.

Pseudoxyrhophiids

Typhlopid blind snakes

Vipers

Species

Subspecies

Dipsadids

Elapids

Colubrids

Keelbacks

Other snake species

See also

Related Research Articles

<span class="mw-page-title-main">Lizard</span> Informal group of reptiles

Lizard is the common name used for all squamate reptiles other than snakes, encompassing over 7,000 species, ranging across all continents except Antarctica, as well as most oceanic island chains. The grouping is paraphyletic as some lizards are more closely related to snakes than they are to other lizards. Lizards range in size from chameleons and geckos a few centimeters long to the 3-meter-long Komodo dragon.

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). Archived from the original on 27 June 2014. Retrieved 8 September 2016.
  2. ↑ "Limitations of the Data". The IUCN Red List of Threatened Species. Union for Conservation of Nature and Natural Resources (IUCN). Archived from the original on 7 October 2018. Retrieved 11 January 2016.
  3. ↑ "2001 Categories & Criteria (version 3.1)". The IUCN Red List of Threatened Species. Union for Conservation of Nature and Natural Resources (IUCN). Archived from the original on 8 October 2008. Retrieved 11 January 2016.
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