Seven species of earthworms are listed by the World Conservation Union (IUCN). The Australian Lake Pedder earthworm is listed as Extinct, or no longer living. Phallodrilus macmasterae from Bermuda is listed as Critically Endangered, or facing an extremely high risk of extinction in the wild. Three of the four species considered Vulnerable live in the United States. Vulnerable means the species are facing a high risk of extinction in the wild. These include the American giant Palouse earthworm from Oregon, the Washington giant earthworm from Washington state, and Komarekiona eatoni that lives in the Midwest. The fourth species is the Gippsland giant worm of Australia. It is the only species that is clearly protected.
Another American species from Louisiana, Lutrodrilus multivesiculatus, is listed as Lower Risk, or at risk of becoming threatened with extinction in the future. These and other earthworms are threatened by loss of habitat and by the fact that many live only in a few places. For example, the grassland habitats of many species have been converted into farmland.
- Earthworms: Oligochaeta - River Worm (diplocardia Riparia): Species Accounts
- Earthworms: Oligochaeta - Behavior And Reproduction
- Other Free Encyclopedias
Animal Life ResourceMollusks, Crustaceans, and Related SpeciesEarthworms: Oligochaeta - Physical Characteristics, Behavior And Reproduction, Conservation Status, River Worm (diplocardia Riparia): Species Accounts - GEOGRAPHIC RANGE, HABITAT, DIET, EARTHWORMS AND PEOPLE