Hibernation physiology, freezing adaptation and extreme freeze tolerance in a northern population of the wood frog.

Abstract

We investigated hibernation physiology and freeze tolerance in a population of the wood frog, Rana sylvatica, indigenous to Interior Alaska, USA, near the northernmost limit of the species' range. Winter acclimatization responses included a 233% increase in the hepatic glycogen depot that was subsidized by fat body and skeletal muscle catabolism, and a rise… (More)
DOI: 10.1242/jeb.089342

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