The influence of feeding by wild boars to the number of current-year bamboo shoots in bamboo forests in northern part of Awaji Island

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  • Odamaki Naoya
    Yao Civil Engineering Office, Department of Urban and Public Works, Osaka Prefecture Graduate School of Landscape Design and Management, University of Hyogo Awaji Landscape Planning and Horticulture Academy
  • Fujihara Michiro
    Graduate School of Landscape Design and Management, University of Hyogo Awaji Landscape Planning and Horticulture Academy
  • Oyabu Takashi
    Graduate School of Landscape Design and Management, University of Hyogo Awaji Landscape Planning and Horticulture Academy
  • Yamamoto Satoshi
    Graduate School of Landscape Design and Management, University of Hyogo Awaji Landscape Planning and Horticulture Academy

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  • 淡路島北部の竹林におけるイノシシによるタケノコ摂食が竹稈発生数に与える影響
  • アワジシマ ホクブ ノ チクリン ニ オケル イノシシ ニ ヨル タケノコ セッショク ガ タケカンハッセイスウ ニ アタエル エイキョウ

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Abstract

<p>In order to understand changes in the use of bamboo forests by wild boar, the count of the bamboo shoot feeding marks by wild boars, the position of culm, diameter of culm and a stand age-structure survey were conducted in Awaji Island from 2017 to 2018. Edible bamboo shoots appear on the ground in spring, but we found that wild boar has dug the soil and eaten bamboo shoots before the end of October. In November the number of eaten bamboo shoots accounted 0.1 to 0.7/100m2/day. The total number of the eaten bamboo shoots reached 10 to 15 /100m2 during this month and this value was almost equal to the number of current-year culm appeared in the next spring. It is considered that wild boars severely affected to the regeneration of bamboo forest.</p>

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