An official website of the United States government

The .gov means it’s official.
Federal government websites always use a .gov or .mil domain. Before sharing sensitive information online, make sure you’re on a .gov or .mil site by inspecting your browser’s address (or “location”) bar.

This site is also protected by an SSL (Secure Sockets Layer) certificate that’s been signed by the U.S. government. The https:// means all transmitted data is encrypted  — in other words, any information or browsing history that you provide is transmitted securely.

You are here

Bullfrog

Back to top
American bullfrog
Scientific Name:
Lithobates catesbeianus (formerly known as Rana catesbeiana) (ITIS)
Common Name:
American Bullfrog
Photo:
American bullfrog, adult - Photo by Russ Ottens; University of Georgia
Native To:
Central and Eastern U.S. (Clarkson and deVos 1986)
Date of U.S. Introduction:
First introduced to the Western U.S. in the early 1900s (Clarkson and deVos 1986)
Means of Introduction:
Accidentally introduced during trout stockings; also introduced through the aquarium trade and for sport and pest control (Lorvelec and Detaint 2006; NAS Database)
Impact:
Competes with and preys on native species (Ficetola et al. 2007)
Current U.S. Distribution:
Western U.S.

Distribution/Maps/Survey Status

Images

Videos

Selected Resources

The section below contains selected highly relevant resources for this species, organized by source. To view all related content for this species, click on "View all resources for species" in the top left of this page.

Council or Task Force

Washington State Recreation and Conservation Office. Washington Invasive Species Council.

Partnership

IUCN. Species Survival Commission. Invasive Species Specialist Group.
Great Britain Non-Native Species Secretariat.

Federal Government

DOI. USGS. Wetland and Aquatic Research Center.
Provides distribution maps and collection information (State and County).

International Government

British Columbia Ministry of Environment (Canada).
See also: Amphibians in B.C. for more resources

State and Local Government

Oregon Department of Fish and Wildlife.

Academic

University of Michigan. Museum of Zoology.
Columbia University. Center for Environmental Research and Conservation.

Citations