List of vulnerable invertebrates

Last updated

Circle frame.svg16 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. Status iucn3.1 VU.svg
Vulnerable (VU) species are considered to be facing a high risk of extinction in the wild.

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

Contents

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 203 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

Related Research Articles

In August 2018, the IUCN Red List of Threatened Species identified 6086 Vulnerable species, subspecies and varieties, stocks and sub-populations in the Animalia kingdom.

References

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