仏沼干拓地における草原性鳥類5種の繁殖期における環境選択の比較

  • 三上 修
    岩手医科大学・共通教育センター・生物学科

書誌事項

タイトル別名
  • Habitat Selections of Five Grassland Bird Species in a Breeding Season at Hotokenuma Wetland in Japan
  • フツヌマ カンタクチ ニ オケル ソウゲンセイ チョウルイ 5シュ ノ ハンショクキ ニ オケル カンキョウ センタク ノ ヒカク

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抄録

Identification of suitable habitats is an important first step toward conserving grassland bird populations. Here, I investigated habitat preferences of five grassland bird species, including two endangered species, in a breeding season at Hotokenuma wetland in northeastern Japan. The five species were the Japanese marsh warbler Locustella pryeri, Oriental Reed Warbler Acrocephalus orientalis, Black-browed Reed Warbler A. bistrigiceps, Reed Bunting Emberiza schoeniclus and Japanese Reed Bunting E. yessoensis. The results showed that the Japanese Marsh Warbler, Reed Bunting and Japanese Reed Bunting preferred similar habitat: the height of the reed Phragmites australis is low and the height and density of monocotyledons or dicotyledons is high. The black-browed Reed Warbler used various habitats in the study area relatively equally, whereas the Oriental Reed Warbler preferred habitat with tall reedbeds and a high density of monocotyledons. To conserve these species, various type of grassland habitat should be preserved.

収録刊行物

  • 山階鳥類学雑誌

    山階鳥類学雑誌 43 (2), 169-175, 2012

    公益財団法人 山階鳥類研究所

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