List of endangered molluscs

From Infogalactic: the planetary knowledge core
Jump to: navigation, search
Extinct, since 1500: 310 species Extinct in the wild (EW): 14 species Critically endangered (CR): 576 species Endangered (EN): 503 species Vulnerable (VU): 871 species Near threatened (NT, LR/cd): 534 species Least concern (LC): 2,429 species Data deficient (DD): 1,979 speciesCircle frame.svg
  •   Extinct, since 1500: 310 species
  •   Extinct in the wild (EW): 14 species
  •   Critically endangered (CR): 576 species
  •   Endangered (EN): 503 species
  •   Vulnerable (VU): 871 species
  •   Near threatened (NT, LR/cd): 534 species
  •   Least concern (LC): 2,429 species
  •   Data deficient (DD): 1,979 species
Mollusc species (IUCN, 2015.4)
  • 7216 species have been evaluated
  • 5237 are fully assessed (excludes DD)
  • 2963 are not threatened at present (LC, NT, LR/cd)
  • 1950 are threatened (CR, EN, VU)
  • 324 to 441 are extinct or extinct in the wild (EX, EW, CR(PE), CR(PEW))
Endangered (EN) species are considered to be facing a very high risk of extinction in the wild.

As of February 2016, the International Union for Conservation of Nature (IUCN) lists 503 endangered mollusc species.[1] 7.0% of all evaluated mollusc species are listed as endangered. The IUCN also lists nine mollusc subspecies as endangered.

No subpopulations of molluscs have been evaluated by the IUCN.

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 exintction". An even higher risk is faced by critically endangered species, which are listed separately (List of critically endangered molluscs) even though they also meet the quantitative criteria for endangered species. There are 1079 mollusc species which are endangered or critically endangered.

Additionally 1979 mollusc species (27% 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 mollusc species and subspecies as evaluated by the IUCN. Where possible common names for taxa are given while links point to the scientific name used by the IUCN.

<templatestyles src="Template:TOC limit/styles.css" />

Gastropoda

There are 444 species and seven subspecies in the class Gastropoda assessed as endangered.

Stylommatophora

There are 185 species and two subspecies in the order Stylommatophora assessed as endangered. Stylommatophora includes the majority of land snails and slugs.

Partulids

<templatestyles src="Div col/styles.css"/>

Achatinellids

<templatestyles src="Div col/styles.css"/>

Endodontids

<templatestyles src="Div col/styles.css"/>

Charopids

<templatestyles src="Div col/styles.css"/>

Helicarionids

<templatestyles src="Div col/styles.css"/>

Orthalicids

Species

<templatestyles src="Div col/styles.css"/>

Subspecies

Euconulids

<templatestyles src="Div col/styles.css"/>

Streptaxids

Species

<templatestyles src="Div col/styles.css"/>

Subspecies

Camaenids

<templatestyles src="Div col/styles.css"/>

Helicids

<templatestyles src="Div col/styles.css"/>

Hygromiids

<templatestyles src="Div col/styles.css"/>

Other Stylommatophora species

<templatestyles src="Div col/styles.css"/>

Littorinimorpha

There are 147 species and three subspecies in the order Littorinimorpha assessed as endangered.

Hydrobiids

<templatestyles src="Div col/styles.css"/>

Bithyniids

Species

<templatestyles src="Div col/styles.css"/>

Subspecies

<templatestyles src="Div col/styles.css"/>

Other Littorinimorpha species

<templatestyles src="Div col/styles.css"/>

Sorbeoconcha

<templatestyles src="Div col/styles.css"/>

Architaenioglossa

Species

<templatestyles src="Div col/styles.css"/>

Subspecies

Hygrophila

There are 22 species in Hygrophila assessed as endangered.

Planorbids

<templatestyles src="Div col/styles.css"/>

Lymnaeids

<templatestyles src="Div col/styles.css"/>

Neogastropoda

<templatestyles src="Div col/styles.css"/>

Other Gastropoda species

<templatestyles src="Div col/styles.css"/>

Bivalvia

There are 57 species and two subspecies in the class Bivalvia assessed as endangered.

Unionoida

There are 54 species and two subspecies in the order Unionoida assessed as endangered.

Unionids

Species

<templatestyles src="Div col/styles.css"/>

Subspecies

Other Unionoida species

<templatestyles src="Div col/styles.css"/>

Veneroida

<templatestyles src="Div col/styles.css"/>

Cephalopods

See also

References

  1. Lua error in package.lua at line 80: module 'strict' not found.
  2. Lua error in package.lua at line 80: module 'strict' not found.
  3. Lua error in package.lua at line 80: module 'strict' not found.