- Extinct in the wild (EW): 2 species
- Critically endangered (CR): 393 species
- Endangered (EN): 626 species
- Vulnerable (VU): 1,081 species
- Near threatened (NT, LR/cd): 398 species
- Least concern (LC): 4,080 species
- Data deficient (DD): 2,890 species
Arthropod species (IUCN, 2016-2)
- 9470 extant species have been evaluated
- 6580 of those are fully assessed[a]
- 4478 are not threatened at present[b]
- 2100 to 4990 are threatened[c]
- 83 to 169 are extinct or extinct in the wild:
- 81 extinct (EX) species[d]
- 2 extinct in the wild (EW)
- 86 possibly extinct [CR(PE)]
- 0 possibly extinct in the wild [CR(PEW)]
- ^ excludes data deficient evaluations.
- ^ NT, LR/cd, LC.
- ^ Threatened comprises CR, EN and VU. Upper estimate additionally includes DD.
- ^ Chart omits extinct (EX) species
As of July 2016, the International Union for Conservation of Nature (IUCN) lists 2875 data deficient arthropod species.[1] 30% of all evaluated arthropod species are listed as data deficient. The IUCN also lists 17 arthropod subspecies as data deficient.
No subpopulations of arthropods have been evaluated by the IUCN.
This is a complete list of data deficient arthropod species and subspecies as evaluated by the IUCN.
- ^ "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.