Sex Differences in Foraging Behaviour, Body Fat and Hibernation Patterns of Free-Ranging Common Hamsters
作者： Carina Siutz , Marc Pluch , Thomas Ruf , Eva Millesi
DOI: 10.1007/978-3-642-28678-0_14
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摘要: In this study, we investigated foraging behaviour, body fat and hibernation patterns in adult common hamsters (Cricetus cricetus). addition, compared the proportion of prior to between juvenile individuals. We a population free-ranging an urban area southern Vienna, Austria. applied capture-mark-recapture techniques focal-animal-sampling for behavioural recordings. Body was calculated by integrating morphometric parameters. temperature changes were recorded during winter using subcutaneously implanted data loggers. time individuals spent torpor, number length torpor bouts. The results revealed sex differences that males feeding mainly above ground, whereas females almost exclusively cached food. These potential energy allocation reflected at end active season. Adult had higher than females. Although juveniles lower adults, similar found. During more females, indicating differing overwintering strategies depending on individual allocate internal or external reserves.
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