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Science 9 June 1978:
Vol. 200. no. 4346, pp. 1179 - 1180
DOI: 10.1126/science.200.4346.1179
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Articles

Sexual Parasitism in the Green Tree Frog (Hyla cinerea)

STEPHEN A. PERRILL 1, H. CARL GERHARDT 2, and RICHARD DANIEL 3

1 Department of Zoology, Butler University, Indianapolis, Indiana 46208
2 Division of Biological Sciences, University of Missouri, Columbia 65201
3 Savannah Science Museum, Savannah, Georgia 31406

Noncalling adult male tree frogs were found in close association with about 16 percent of the calling males in a pond in Georgia. In 13 of 30 field experiments a noncalling satellite male intercepted and achieved amplexus with a gravid female moving toward the calling male. This mating strategy, which conserves energy required for calling, resembles the strategy employed by other vertebrates.

Submitted on November 16, 1977
Revised on February 28, 1978


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