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Overwintering Habitats of Radio-Implanted Green Frogs, Rana clamitans

Victor S. Lamoureux and Dale M. Madison
Journal of Herpetology
Vol. 33, No. 3 (Sep., 1999), pp. 430-435
DOI: 10.2307/1565639
Stable URL: http://www.jstor.org/stable/1565639
Page Count: 6
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Overwintering Habitats of Radio-Implanted Green Frogs, Rana clamitans
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Abstract

Anecdotal accounts from chance encounters with overwintering anurans predominate the literature. There have been few systematic studies detailing overwintering habitats in anurans. We used radio implants to determine overwintering habitats of the green frog, Rana clamitans, in southern New York state. We report on 23 frogs tracked up to 38 weeks during 1995-1997. Green frogs made extensive movements in late fall away from summer breeding ponds primarily to areas of flowing water in streams and seeps. We suggest that these sites are chosen because they remain unfrozen and provide adequate oxygen for survival. The seasonal shifts in habitat preference we observed have important implications for amphibian and wetland conservation.

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