Wisconsin's rare animals

Animal Classification

Animal Group

Animal Name Type

Search Animals

Scientific Name	Common Name	Global Rank	State Rank	Federal Status	WI Status	Animal Group

Buckhorn (Quadrula verrucosa)

Photo by Lisie Kitchel

State Status: THR

Federal Status: none

State Rank: S2S3

Global Rank: G4G5

Wildlife Action Plan: SGCN

Counties with Mapped NHI Occurrences

Buckhorn (Quadrula (=Tritogonia) verrucosa), listed as Threatened in Wisconsin, is found in medium to large-sized rivers, with a moderate to swift current, and clean, firm substrates. The known host fishes are yellow and brown bullheads and flathead catfish.

Wildlife Action Plan

Associated Natural Communities and Ecological Landscapes

Species of Greatest Conservation Need (SGCN) are associated with habitats (or natural communities) and places on the landscape. Understanding relationships among SGCN, natural communities and ecological landscapes help us make decisions about issues affecting SGCN and their habitat and how to respond. Download the Wildlife Action Plan association score spreadsheet to explore rare species, natural communities and ecological landscape associations

Issues/Threats and Conservation Actions

Conservation actions respond to issues or threats, which adversely affect species of greatest conservation need (SGCN) or their habitats. Besides actions such as restoring wetlands or planting resilient tree species in northern communities, research, surveys and monitoring are also among conservation actions described in the Wisconsin Wildlife Action Plan because lack of information can threaten our ability to successfully preserve and care for natural resources.

Wisconsin's rare animals

Buckhorn (Quadrula verrucosa)

Rare Species & Natural Communities

Additional Resources

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