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THERMAL ECOLOGY AND SEXUAL SIZE DIMORPHISM IN NORTHERN WATER SNAKES, NERODIA SIPEDON.(Statistical Data Included)
- Article from:
-
Ecological Monographs
- Article date:
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May 1, 2000
- Author:
- BROWN, GREGORY P.; WEATHERHEAD, PATRICK J.
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Copyright informationCOPYRIGHT 2000 Ecological Society of America. This material is published under license from the publisher through the Gale Group, Farmington Hills, Michigan. All inquiries regarding rights should be directed to the Gale Group. (Hide copyright information)
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GREGORY P. BROWN [1]
PATRICK J. WEATHERHEAD [2]
Abstract. We used more than 326 000 observations of temperature collected by radio telemetry from 38 individuals over three years to investigate thermoregulation and thermal relations of northern water snakes (Nerodia sipedon) near the northern limit of their distribution in Ontario, Canada. We tested hypotheses concerning the effects of feeding, season, sex, and reproductive condition on thermoregulation of individuals. The mean preferred body temperature (PBT) for captive snakes from the study population was 27.1[degrees]C, similar to that reported for other populations, and PBT range (defined as the 25th-75th ...
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