低温での鳥類の姿勢

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書誌事項

タイトル別名
  • Postures of Birds in Low Temperatures
  • テイオン デ ノ チョウルイ ノ シセイ

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抄録

Postures of Dendrocopos major, Hypsipetes amaurotis, Parus palustris, P. ater, P. major and Passer montanus occurring on feeders were observed during winter. At low temperatures birds fluffed out their plumage and the degree of fluffing differed in relation to ambient temperature. D. major, Parus palustris, P. ater, P. major and Passer montanus fluffed out plumage mostly at temperatures of -11～-15°C, and the percentage of individuals fluffing out plumage increased below -17°C. However, H. amaurotis fluffed out plumage at higher ambient temperatures than the other five species.

収録刊行物

  • 山階鳥類学雑誌

    山階鳥類学雑誌 44 (1), 27-30, 2012

    公益財団法人 山階鳥類研究所

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