Relationship between Bark Preferences of Cervus nippon yesoensis and Inner Bark Components of Small-diameter Tree Trunks.

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  • Kojima Y.
    Graduate School of Agriculture, Hokkaido University
  • Yasui Y.
    Graduate School of Agriculture, Hokkaido University
  • Orihashi K.
    Graduate School of Agriculture, Hokkaido University
  • Terazawa M.
    Graduate School of Agriculture, Hokkaido University
  • Kamoda S.
    University Forest in Hokkaido, The University of Tokyo
  • Kasahara H.
    University Forest in Hokkaido, The University of Tokyo
  • Takahashi Y.
    University Forest in Hokkaido, The University of Tokyo

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Other Title
  • エゾシカの樹皮嗜好性と小径樹幹の内樹皮成分との関係
  • エゾシカ ノ ジュヒシコウセイ ト ショウケイ ジュカン ノ ナイ ジュヒ セイブン ト ノ カンケイ

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Abstract

Severe bark stripping by sika deer (Cervus nippon yesoensis) occurs during winter snow in the Tokyo University Forest in Hokkaido. The trees debarked are mainly those with small-diameter trunks. The tree species important for forest management and conservation in this Forest are Acer mono, Betula maximowicziana, Betula platyphylla var. japonica, Fraxinus mandshurica var. japonica, Kalopanax septemlobus, Maackia amurensis var. buergeri, Picea jezoensis, Prunus ssiori, Quercus mongolica var. grosseserrata, Taxus cuspidata, Ulmus davidiana var. japonica, and Ulmus laciniata. We analyzed the inner bark components of small-diameter trunks of these twelve tree species, and examined any relationship between each component and the bark preference of sika deer. M. amurensis, for which sika deer exhibited a low preference, was the only species containing alkaloids. Of the other eleven tree species, the ash and acid detergent lignin concentrations had positive and negative relationships, respectively, with the bark preferences of sika deer.

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