Seasonal Movements of Sika in Omote-Nikko,Tochigi Prefectre

DOI Web Site 被引用文献6件
  • MARUYAMA Naoki
    Laboratory of Nature Conservation, Faculty of Agriculture, Tokyo University of Agriculture and Technology, Fuchu, Tokyo
  • TOTAKE Yukitoshi
    Itsukaichi Branch, Agricultural Experiment Station of Tokyo Metropolis
  • OKABAYASHI Ryoichi
    Kawasaki High School, Kawasaki City

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タイトル別名
  • Seasonal Movements of Sika in Omote-Nikko, Tochigi Prefecture
  • Seasonal Movements of Sika in Omote Nik

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The seasonal movements of sika (Cervus nippon) were investigated by footprint counts on the south slope of Mt. Nyoho (2, 464m in elevation) in Omote-Nikko, Tochigi Prefecture, between June 1972 and January 1974. This area ranges from 900 to 2, 000m in elevation.<BR>In January, sika moved down to the area below 1, 500m in elevation. In February and March, they were concentrated at 1, 200 and 1, 300m in elevation. It is probable that both were primarily affected by deep snow. In April, as the snow melted, they began to move up again. In May, the downward movement occurred, because they were probably attracted by palatable plants beginning to grow in the lower area. And then they gradually moved up, as the development of plants progressed from the lower area to the higher area. In June, the peak of calving season, they were widely and evenly scattered over the area. Since then the upward gradual movement continued till August. Since none of bucks were observed in summer in the lower area below 1, 600 m in elevation, they probably stayed in the sub-alpine zone in this season. During late August and September, the downward movement was recognized. In November, the abrupt defoliation probably caused them to move up to the ever-green coniferous forest in the sub-alpine zone.

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