Rubber Boa Thermal Biology

Michael E. Dorcas

For my doctoral research conducted in southeastern Idaho, I used rubber boas (Charina bottae) as a model An adult female rubber boa from southeastern Idahofor ectothermic vertebrates to address general issues in thermal ecology. The main question I am investigating is: To what extent are the thermal physiology and thermoregulatory behavior coadapted? To address this question, I measured the effects of temperature on whole animal physiological functions (e.g., digestive rate, metabolism, and crawling speed) in the laboratory and then compared those data with body temperature variation measured in the field using automated radiotelemetry systems. I used biophysical models to describe the natural thermal environments of the animals I study. In addition to the basic evolutionary questions about coadaptation addressed by this research, results may be vital for conservation purposes by preserving habitats necessary for thermoregulation in extreme environments.

X-radiograph of a rubber boa surgically implanted with a temperature sensitive raidio transmitter

* Please also see diamondback rattlesnake project for more
information on snake thermal biology *


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