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As of July 2016, the International Union for Conservation of Nature (IUCN) lists 2178 vulnerable invertebrate species.[1] 12% of all evaluated invertebrate species are listed as vulnerable. The IUCN also lists 47 invertebrate subspecies as vulnerable.

16 extinct in the wild invertebrate species (0.09%)987 critically endangered invertebrate species (5.6%)1163 endangered invertebrate species (6.6%)2178 vulnerable invertebrate species (12%)1105 near threatened invertebrate species (6.3%)6919 least concern invertebrate species (39%)5278 data deficient invertebrate species (30%)
Invertebrate species (IUCN, 2020.1)
  • 17,646 extant species have been evaluated
  • 12,368 of those are fully assessed[lower-alpha 1]
  • 8024 are not threatened at present[lower-alpha 2]
  • 4328 to 9606 are threatened[lower-alpha 3]
  • 410 to 616 are extinct or extinct in the wild:
    • 395 extinct (EX) species[lower-alpha 4]
    • 15 extinct in the wild (EW)
    • 206 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
Vulnerable (VU) species are considered to be facing a high risk of extinction in the wild.
Vulnerable (VU) species are considered to be facing a high risk of extinction in the wild.

No subpopulations of invertebrates have been evaluated by the IUCN.

For a species to be assessed as vulnerable to extinction the best available evidence must meet quantitative criteria set by the IUCN designed to reflect "a high risk of extinction in the wild". Endangered and critically endangered species also meet the quantitative criteria of vulnerable species, and are listed separately. See: List of endangered invertebrates, List of critically endangered invertebrates. Vulnerable, endangered and critically endangered species are collectively referred to as threatened species by the IUCN.

Additionally 5278 invertebrate species (29% 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 vulnerable invertebrate species and subspecies as evaluated by the IUCN.


Nemertea species



Annelids



Onychophora



Molluscs


There are 879 mollusc species and 18 mollusc subspecies assessed as vulnerable.


Gastropods


There are 828 gastropod species and 16 gastropod subspecies assessed as vulnerable.


Stylommatophora

Stylommatophora includes the majority of land snails and slugs. There are 339 species and six subspecies in the order Stylommatophora assessed as vulnerable.


Charopids


Helicarionids


Orthalicids


Euconulids


Streptaxids


Ferussaciids


Helminthoglyptids


Oxychilids


Camaenids


Lauriids


Vertiginids

Species

Subspecies


Trissexodontids


Helicids

Species

Subspecies


Hygromiids

Species

Subspecies


Vitrinids


Chondrinids


Enids


Other Stylommatophora

Species

Subspecies


Littorinimorpha

There are 324 species and seven subspecies in the order Littorinimorpha assessed as vulnerable.


Hydrobiids

Species

Subspecies


Cochliopids


Bithyniids


Moitessieriids


Assimineids


Pomatiopsids


Amnicolids


Other Littorinimorpha species


Sorbeoconcha

There are 55 species in the order Sorbeoconcha assessed as vulnerable.


Pleurocerids


Melanopsids


Thiarids


Pachychilids


Paludomids


Architaenioglossa

Species

Subspecies


Lower Heterobranchia species


Cycloneritimorpha


Hygrophila

Species

Subspecies


Neogastropoda

There are 27 species in the order Neogastropoda assessed as vulnerable.


Conids


Eupulmonata


Bivalvia


There are 49 species and two subspecies in the class Bivalvia assessed as vulnerable.


Unionida

There are 37 species and two subspecies in the order Unionoida assessed as vulnerable.


Margaritiferids


Unionids

Species

Subspecies


Hyriids


Iridinids

Species

Subspecies


Mycetopodids


Cardiida


Arcida


Venerida


Cephalopods



Cnidaria


There are 204 species in the phylum Cnidaria assessed as vulnerable.


Hydrozoa



Anthozoa


There are 202 species in the class Anthozoa assessed as vulnerable.


Scleractinia

There are 199 species in the order Scleractinia assessed as vulnerable.


Euphyllids


Dendrophylliids


Acroporids


Poritids


Brain corals


Pocilloporids


Mussids


Pectiniids


Agariciids


Fungiids


Other Scleractinia species


Other Anthozoa species


Arthropods


There are 1080 arthropod species and 29 arthropod subspecies assessed as vulnerable.


Seed shrimps



Arachnids


There are 47 arachnid species assessed as vulnerable.


Spiders


Other arachnid species


Branchiopoda



Millipedes



Maxillopoda


Maxillopoda includes barnacles, copepods and a number of related animals. There are 71 species in the class Maxillopoda assessed as vulnerable.


Calanoida

There are 47 species in the order Calanoida assessed as vulnerable.


Diaptomids


Centropagids


Temorids


Cyclopoida


Harpacticoida

There are 18 species in the order Harpacticoida assessed as vulnerable.


Darcythompsoniids


Ameirids


Canthocamptids


Malacostracans


Malacostraca includes crabs, lobsters, crayfish, shrimp, krill, woodlice, and many others. There are 307 malacostracan species and 14 malacostracan subspecies assessed as vulnerable.


Isopods

Species

Subspecies


Amphipods

There are 56 amphipod species and four amphipod subspecies assessed as vulnerable.


Hadziids

Subspecies


Paramelitids


Gammarids


Crangonyctids


Niphargids

Species

Subspecies


Anaspidacea


Decapods

There are 224 decapod species and seven decapod subspecies assessed as vulnerable.


Parastacids


Gecarcinucids


Atyids


Cambarids

Species

Subspecies


Potamonautids


Pseudothelphusids


Potamids


Palaemonids


Trichodactylids


Other decapod species


Insects


There are 608 insect species and 15 insect subspecies assessed as vulnerable.


Flies


Plecoptera


Notoptera


Orthoptera

There are 137 species in the order Orthoptera assessed as vulnerable.


Crickets


Acridids


Stenopelmatids


Tettigoniids


Rhaphidophorids


Phaneropterids


Other Orthoptera species


Hymenoptera

There are 155 species in the order Hymenoptera assessed as vulnerable.


Ants


Colletids


Melittids


Apids


Megachilids


Mantises


Lepidoptera

Lepidoptera comprises moths and butterflies. There are 128 species and ten subspecies in the order Lepidoptera assessed as vulnerable.


Lasiocampids


Swallowtail butterflies


Lycaenids


Nymphalids

Species

Subspecies


Skippers


Pierids


Beetles

There are 50 beetle species assessed as vulnerable.


Dytiscids


Longhorn beetles


Scarabaeids


Other beetle species


Odonata

Odonata includes dragonflies and damselflies. There are 129 species and five subspecies in the order Odonata assessed as vulnerable.


Chlorogomphids


Chlorocyphids


Platycnemidids


Megapodagrionids


Gomphids

Species

Subspecies


Coenagrionids

Species

Subspecies


Aeshnids


Libellulids


Other Odonata species


Other arthropod species



Echinoderms



See also



References


  1. "IUCN Red List version 2016.1". The IUCN Red List of Threatened Species. International Union for Conservation of Nature and Natural Resources (IUCN). Retrieved 4 July 2016.
  2. "Limitations of the Data". The IUCN Red List of Threatened Species. Union for Conservation of Nature and Natural Resources (IUCN). 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). Retrieved 11 January 2016.


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