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Golden-mantled ground squirrel – Hibernation; Ground squirrels; Hibernation; Rewarming
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Full-Text Articles in Animal Sciences
Physiological Implications Of Natural Versus Induced Arousal From Torpor, Jenifer C. Utz
Physiological Implications Of Natural Versus Induced Arousal From Torpor, Jenifer C. Utz
UNLV Theses, Dissertations, Professional Papers, and Capstones
During the hibernation season, animals oscillate between periods of torpor and periods of interbout arousal (IBA). During torpor, body temperature is often near 0° C and metabolism is severely depressed. Oxygen consumption, a proxy for aerobic metabolism, may fall to 1% of active values. Many physiological processes including cardiovascular, respiratory, and cellular functions nearly cease. During the IBA, euthermic body temperature is restored and most systemic and cellular processes function at fully active levels. The transition period between these two physiologically dissimilar states is called arousal.
The rate of rewarming (RRW) during arousal was previously expected to progressively increase until …