Central and Eastern U.S. (Clarkson and deVos 1986)
First introduced to the Western U.S. in the early 1900s (Clarkson and deVos 1986)
Most introductions have been associated with escapes from aquaculture operations. Other pathways include bait used for recreational fishing and escapes or releases through the pet trade, landscape ponds, research, and teaching (Adams and Pearl 2007).
Competes with and preys on native species (Ficetola et al. 2007)
The section below contains highly relevant resources for this species, organized by source. Or, to display all related content view all resources for Bullfrog.
Council or Task Force
Washington State Recreation and Conservation Office. Washington Invasive Species Council.
State and Local Government
California Department of Fish and Wildlife.
Oregon Department of Fish and Wildlife.
Adams M.J., and C.A. Pearl. 2007. Problems and opportunities managing invasive Bullfrogs: is there any hope? In: Gherardi, F. (eds) Biological invaders in inland waters: Profiles, distribution, and threats. Invading Nature - Springer Series In Invasion Ecology, vol 2. Springer, Dordrecht.
Clarkson, R.W. and J.C. de Vos, Jr. 1986. The bullfrog, Rana catesbeiana Shaw, in the Lower Colorado River, Arizona-California. Journal of Herpetology 20(1):42-49.
Ficetola, G.F., W. Thuiller, and C. Miaud. 2007. Prediction and validation of the potential global distribution of a problematic alien invasive species - the American bullfrog. Diversity and Distributions 13(4):476-485.
Integrated Taxonomic Information System. Lithobates catesbeianus. [Accessed Sep 10, 2014].