Effects of defoliation and digging caused by sika deer on the Oze mires of central Japan
スポンサーリンク
概要
- 論文の詳細を見る
Sika deer Cervus nippon invaded the Oze area of Japan in the 1990s and have resided there every summer. In 2000 and 2001, the effects of deer disturbance on mire vegetation were studied at Nagaike Mire, east of Ozenuma Mire. Since deer density was low there, any effects of defoliation were minor, but effects of digging were substantial. Deer dug in the mire only immediately after snowmelt, probably to forage on Menyanthes trifoliata rhizomes. Rhizomes of this species contain as much as 6.6% nitrogen and are fragrant, suggesting that they contain some attractants for ungulates. The direct effects of digging almost completely destroyed neighboring plants, although digging affected only 5 to 6% area of the mire. The effects of digging were unique: they altered water flow, indirectly influencing other plants that grew some distance from dig sites. Careful monitoring of the deer population and mire vegetation is therefore necessary.
- 野生生物保護学会の論文
著者
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高槻 成紀
The University Of Tokyo
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高槻 成紀
東京大学大学院農学生命科学研究科野生動物学研究室
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TAKATSUKI Seiki
Laboratory of Wildlife Biology, School of Agriculture and Life Sciences, The University of Tokyo
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Igarashi Tomoyuki
School Of Agriculture And Life Sciences The University Of Tokyo
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Takatsuki Seiki
The University Museum The University Of Tokyo
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Takatsuki Seiki
Univ. Tokyo Tokyo Jpn
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Takatsuki Seiki
University Museum The University Of Tokyo
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高槻 成紀
麻布大学獣医学部動物応用科学科野生動物研究室
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