福島県いわき市北部の丘陵地におけるツチガエルの冬眠場所

概要

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The hibernation sites of Rana rugosa were studied on a hill in Northern Iwaki, Fukushima Prefecture, Japan, in March 2006 and February 2009. Nineteen frogs were found hibernating in the pools and the backwater area of small stream (X^^-±SD=13.0±4.46cm in depth, X^^-±SD=1.56±1.01cm/sec in water velocity) where litter was accumulating thickly in a small stream. During the study, no frogs of this species were hibernating on land. In small stream of the hill, R. rugosa may mainly use areas slow-running water body or standing water body as hibernation sites
2010-03-01