A telemetric study of the abdominal temperature of a hibernator, Spermophilus richardsonii, maintained under constant conditions of temperature and light during the active season

The abdominal temperatures of richardson's ground squirrels maintained under constant conditions of light and temperature were automatically recorded from surgically inserted temperature transmitters, during the active season.These provided evidence of the existence of daily and short temperature cycles, a long-term downward trend, and temperature drops during the prehibemalion period.The significance of these observations to the hypothesis (Hammel 3967) that the 'set point' for rewarming b lower during the hibernation season is discussed.