Abstract
Studies regarding the thermal ecology of snakes are important to understanding their life histories. Yet, little is known about the thermal ecology of the North American genus Pituophis, which includes the bullsnake ( Pituophis catenifer sayi). In an attempt to determine which independent variables significantly affected the thermal ecology of free-ranging bullsnakes, we tracked 12–19 radio-tagged individuals weekly from 2003 to 2005 in Wisconsin (USA) with temperature-sensitive transmitters. Although snake body temperature was found to vary based on several variables treated independently, two separate three-way interactions among variables were significant. We believe our results support the notion that P. c. sayi thermoconforms to environmental conditions in the upper Midwest, but more research on the topic is necessary.
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