Reports

Call Types of the Rana pipiens Complex in Illinois

Science  26 May 1972:
Vol. 176, Issue 4037, pp. 928-929
DOI: 10.1126/science.176.4037.928

Abstract

The presence of western, eastern, and northern call types of the Rana pipiens complex in Illinois supports evidence from the western United States that this complex can no longer be regarded as one species.

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