Environmental factors affecting capture rate of the Japanese Water Shrew, <i>Chimarrogale platycephala</i>

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  • Saitoh Hiroaki
    Laboratory of Environmental Zoology, Faculty of Agriculture, Meijo University
  • Kazama Kentaro
    Laboratory of Environmental Zoology, Faculty of Agriculture, Meijo University
  • Hino Teruaki
    Laboratory of Environmental Zoology, Faculty of Agriculture, Meijo University

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  • カワネズミ<i>Chimarrogale platycephala</i>の捕獲率に影響する環境要因
  • カワネズミChimarrogale platycephalaの捕獲率に影響する環境要因
  • カワネズミ Chimarrogale platycephala ノ ホカクリツ ニ エイキョウ スル カンキョウ ヨウイン

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Abstract

Environmental factors affecting the capture rate of the Japanese water shrew Chimarrogale platycephala were investigated in the Kamikoshi River, Aichi, central Japan, from June to December in 2011. The shrews were significantly more frequently captured at confluences and in narrow secondary tributaries not shown on the 1/25,000 scale topographical map published by the Geographical Survey Institute. They were also more frequently captured within three days after heavy rainfall (over 150 mm/day). Soil inflow into the tributaries caused by pavement construction projects did not affect capture rate.<br>

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