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The Nonindigenous Occurrences section of the NAS species profiles has a new structure. The section is now dynamically updated from the NAS database to ensure that it contains the most current and accurate information. Occurrences are summarized in Table 1, alphabetically by state, with years of earliest and most recent observations, and the tally and names of drainages where the species was observed. The table contains hyperlinks to collections tables of specimens based on the states, years, and drainages selected. References to specimens that were not obtained through sighting reports and personal communications are found through the hyperlink in the Table 1 caption or through the individual specimens linked in the collections tables.

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Common name: Northern Leopard Frog

Synonyms and Other Names: Rana pipiens (see first paragraph of Remarks section)

Taxonomy: available through www.itis.gov

Size: 5.1 - 9 cm

Native Range: Southern Canada and the northern United States.

Alaska	Hawaii	Puerto Rico & Virgin Islands	Guam Saipan

Hydrologic Unit Codes (HUCs) Explained
Interactive maps: Point Distribution Maps

Ecology: Found in streams, lakes, ponds, and wet prairies. Often called the "meadow frog" due to its wandering well away from water in the summer time. Individuals may congregate under submerged logs or rocks during the winter.  Lays eggs from March to May; tadpoles transform in late June to August.

Remarks: Frost et al. (2006) revised the genus Rana and most of the North, Central and South American "true frogs" were seperated from this taxon and placed into the new genus Lithobates (Frost et al., 2006; Crother, 2008; Collins and Taggart, 2009).  Scientific and standard English names follow Crother (2008).

References: (click for full references)

Collins, J.T. and T.W. Taggart. 2009. Standard common and current scientific names for North American amphibians, turtles, reptiles, and crocodilians. Sixth Edition. Publication of The Center for North American Herpetology, Lawrence. iv + 44p.

Crother, B.I. (chair). Committee on Standard and English and Scientific Names. 2008. Scientific and standard English names of amphibians and reptiles of North America north of Mexico, with comments regarding confidence in our understanding. Society for the Study of Amphibians and  Reptiles Herpetological Circular. No. 37. iii + 86p.

Frost, D. R., T. Grant, J. Faivovich, R. H. Bain, A. Haas, C. F. B. Haddad, R. O. De Sá, A. Channing, M. Wilkinson, S. C. Donnellan, C. J. Raxworthy, J. A. Campbell, B. L. Blotto, P. Moler, R. C. Drewes, R. A. Nussbaum, J. D. Lynch, D. M. Green, and W. C. Wheeler. 2006. The amphibian tree of life. Bulletin of the American Museum of Natural History 297:1-370 + Fig. 50 foldout.

Author: Liz McKercher, and Denise R. Gregoire

This information is preliminary or provisional and is subject to revision. It is being provided to meet the need for timely best science. The information has not received final approval by the U.S. Geological Survey (USGS) and is provided on the condition that neither the USGS nor the U.S. Government shall be held liable for any damages resulting from the authorized or unauthorized use of the information.