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光 汚染 は 鳥 の 活動 を 延ばし て い ます

Brent S Pease1, Neil A Gilbert2

  • 1School of Forestry and Horticulture, Southern Illinois University, Carbondale, IL, USA.

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まとめ
この要約は機械生成です。

夜間の人工光は鳥の鳴き声を 毎日50分延長します この光汚染は 特に繁殖期に 大きな目を持つ種や 巣を開く種や 移動習慣に最も影響します

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科学分野:

  • エコロジー
  • 環境科学
  • バイオアコースティック

背景:

  • 光の汚染は 自然の光と闇のサイクルを乱し 生物のタイミングに影響します
  • 光の汚染と鳥の声に関する以前の研究は 個々の種に焦点を当てており 広範な合成が欠けていました
  • 様々な種や場所や季節にわたる 光汚染の影響を 総合的に理解する必要があります

研究 の 目的:

  • 多種,地域,季節の鳥の声に及ぼす光の汚染の影響をまとめること.
  • 目の大きさ,巣作りの行動,移動状態,範囲の大きさなどの特徴が,光汚染に対する種の反応にどのように影響するか調査する.
  • 夜間の人工光が 鳥のコミュニケーションに与える影響について グローバルな視点を提供するためです

主な方法:

  • 鳥の音の検出を6000万件以上含む グローバルな音響データセットを使用しました
  • 583種類の昼間の鳥の声のパターンを分析しました
  • 異なる風景における光の汚染レベルと相関する声の活動パターン

主要な成果:

  • 平均して 光の汚染は鳥の毎日の声の活動を 約50分延長することが判明しました
  • 種別反応は様々で,大きな目を持つ鳥,オープンな場所に巣を作る鳥,移動行動を示す鳥,広範囲に広がる鳥ではより強い効果が観察されました.
  • 鳥の繁殖期に最も顕著だった.

結論:

  • 光の汚染は 鳥の鳴き声のタイミングを 世界規模で大きく変化させます
  • 特定の種の特徴により 鳥は夜間に人工的な光によって より多くの障害を被る傾向があります
  • 声の活動の変化による健康への影響は,さらなる調査を必要とし,光汚染を軽減するための保全努力の必要性を強調しています.