Comparison of surface temperature in 13-lined ground squirrel (Spermophilus tridecimlineatus) and yellow-bellied marmot (Marmota flaviventris) during arousal from hibernation

Comparative Biochemistry and Physiology. Part A, Molecular & Integrative Physiology
P K Phillips, J E Heath

Abstract

Surface temperatures (Ts) of eight 13-lined ground squirrels and seven yellow-bellied marmots were measured during arousal from hibernation using infrared thermography (IRT) and recorded on videotape. Animals aroused normally in 5 degrees C cold rooms. Body temperatures were recorded during arousal using both cheek pouch and interscapular temperature probes. Warming rate in arousal was exponential. Mean mass specific warming rates show the squirrels warm faster (69.76 degrees C/h/kg) than the marmots (4.49 degrees C/h/kg). Surface temperatures (Ts) for 11 regions were measured every few minutes during arousal. The smaller ground squirrel shows the ability to perfuse distal regions without compromising rise in deep body temperature (Tb). All squirrel Ts's remained low as Tb rose to 18 degrees C, at which point, eyes opened, squirrels became more active and all Ts's rose parallel to Tb. Marmot Ts remained low as Tb rose initially. Each marmot showed a plateau phase where Tb remained constant (mean Tb 20.3+/-1.0 degrees C, duration 9.4+/-4.1 min) during which time all Ts's rose, and then remained relatively constant as Tb again began to rise. An anterior to posterior Ts gradient was evident in the ground squirrel, both body and fe...Continue Reading

References

Apr 1, 1992·Comparative Biochemistry and Physiology. Comparative Physiology·P K Phillips, J E Heath
Jan 1, 1990·Comparative Biochemistry and Physiology. A, Comparative Physiology·J J KlirN Bennani
May 1, 1973·Comparative Biochemistry and Physiology. A, Comparative Physiology·R A GaertnerO Z Roy
Jan 1, 1971·Comparative Biochemistry and Physiology. A, Comparative Physiology·L C Wang, J W Hudson
Feb 1, 1972·Comparative Biochemistry and Physiology. A, Comparative Physiology·H C Heller, H T Hammel
Sep 1, 1974·The American Journal of Physiology·H C Heller, G W Colliver
Apr 1, 1972·The American Journal of Physiology·C P Lyman, R C O'Brien
Oct 8, 1965·Annals of the New York Academy of Sciences·J S HaywardC R Taylor
May 1, 1965·Journal of Applied Physiology·H Pohl
Jun 26, 2001·Comparative Biochemistry and Physiology. Part A, Molecular & Integrative Physiology·P K Phillips, J E Heath
Nov 29, 2002·The Journal of Experimental Biology·Glenn J Tattersall, William K Milsom
Nov 1, 1960·The American Journal of Physiology·L C MOKRASCHS GRISOLIA
Apr 12, 1963·Science·R E SMITH, R J HOCK
Oct 1, 1963·The Journal of Physiology·C P LYMAN, R C O'BRIEN
Apr 1, 1955·Physiological Reviews·C P LYMAN, P O CHATFIELD

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Citations

Sep 17, 2010·American Journal of Physiology. Regulatory, Integrative and Comparative Physiology·Marshall HamptonMatthew T Andrews
Mar 8, 2016·Comparative Biochemistry and Physiology. Part A, Molecular & Integrative Physiology·Glenn J Tattersall
Oct 20, 2007·Journal of Thermal Biology·Jenifer C UtzFrank van Breukelen

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