Materials are presented on the hibernation of three species of squirrel with a body temperature below zero at relatively low temperatures of the environment (down to −10 to −12°C). DS-1922 L temperature loggers were implanted in the body cavity of parka squirrels, long-tailed ground squirrels, and black-capped marmots before the period of hibernation, in August. After the implantation, the temperature loggers were kept in the body cavity of the animals during their winter hibernation and removed at the end of April. During the period of hypothermia, a body temperature below zero was recorded: in parka squirrels it was observed during 5 months, the minimum temperature was −2°C; in long-tailed ground squirrels it was observed during 6 months and the minimum temperature was −2°C; and in black-capped marmots it was observed during 4 months and the minimum temperature was −1°C.
Russian Journal of Ecology – Springer Journals
Published: Mar 22, 2015
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