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Cut-and-Paste Reference:
Pearl, C.A. , M.P. Hayes, R. Haycock, J.D. Engler, and J. Bowerman. 2005. Observations of Interspecific Amplexus Between Western North American Ranid Frogs and the Introduced American Bullfoog (Rana catesbeiana) and an Hypothesis Concerning Breeding Interference. American Midland Naturalist 154(1):126-134.
Reference Details:
Reference Number: 16600
Type: Journal Article
Author: Pearl, C.A. , M.P. Hayes, R. Haycock, J.D. Engler, and J. Bowerman
Date (year): 2005
Article Title:Observations of Interspecific Amplexus Between Western North American Ranid Frogs and the Introduced American Bullfoog (Rana catesbeiana) and an Hypothesis Concerning Breeding Interference.
Journal Name: American Midland Naturalist
Volume: 154
Issue: 1
Pages: 126-134
URL:
Keywords: Ranid frogs, Bullfrog, Rana catesbeiana, Oregon spotted frog, Rana pretiosa, red-legged frog, Rana aurora, breeding interference,
Species Profiles and Specimens that use this Reference:

Lithobates catesbeianus

    WA - Conboy Lake National Wildlife Refuge
    OR - Crosswater (Golf Resort)
    OR - Ankeny National Wildlife Refuge
    OR - Burlington Bottoms, northwest of Portland
    OR - Sandy River Delta

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Citation information: U.S. Geological Survey. [2025]. Nonindigenous Aquatic Species Database. Gainesville, Florida. Accessed [12/13/2025].

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