A case study of damage to naturally regenerated forests by Sika Deer Cervus nippon in the region of Southern Japan Alps in Shizuoka.

DOI Web Site 19 References
  • Kadowaki Seishi
    Ikawa Forest, Agricultural and Forestry Research Center, University of Tsukuba:(Present office)Yatsugatake Forest, Agricultural and Forestry Research Center, University of Tsukuba
  • Endoh Yoshikazu
    Ikawa Forest, Agricultural and Forestry Research Center, University of Tsukuba:Agricultural and Forestry Research Center, University of Tsukuba
  • Inami Akihiro
    Ikawa Forest, Agricultural and Forestry Research Center, University of Tsukuba:(Present office)Yatsugatake Forest, Agricultural and Forestry Research Center, University of Tsukuba
  • Takinami Akira
    Ikawa Forest, Agricultural and Forestry Research Center, University of Tsukuba

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Other Title
  • 南アルプス静岡地域における天然生林のニホンジカCervus nipponによる被害の事例報告
  • ミナミアルプス シズオカ チイキ ニ オケル テンネンセイリン ノ ニホンジカ Cervus nippon ニ ヨル ヒガイ ノ ジレイ ホウコク

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Damage to naturally regenerated forests by sika deer Cervus nippon was examined in Southern Japan Alps in Shizuoka in Shizuoka Pref. from 2000 to 2002. One hundred twenty one forest trees in two rectangular plots (20m×30m) were mainly shared by Betura ermanii (n=51), Acer shirasawanum (n=32), Fraxinus apertisquamifera (n=20) and Sorbus commixta (n=10), which accounted for almost whole trees (about 93%). During three years, the rate of bark stripping damage by sika deer to S. commixta was 90% (n=9), but none of other tree species suffered from their damage. The rate of antler scrubbing damage to trunk was 90.0% (n=9) in S. commixta, 34.4% (n=11) in A. shirasawanum, 30.0% (n=6) in F. apertisquamifera and 5.9% (n=3) in B. ermanii. There were significant differences in the rate of bark stripping and antler scrubbing damage among the four species. Furthermore, there was no significant difference in diameters at breast height (DBHs) among the four species, and the distribution of their DBHs classes were overlapped. Therefore, it suggests that the rate of damage among the four species did not result in thickness of DBHs of their species. Because S. commixta suffered from two type of damage much more than other species, it suggests that sika deer selected S. commixta.

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