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コメント "気候 変化 に よっ て 海岸 鳥 の 巣 を 捕食 する 世界 的 な 傾向 が 混乱 し て いる"

Martin Bulla1,2,3, Jeroen Reneerkens2,4, Emily L Weiser5

  • 1Department of Behavioural Ecology and Evolutionary Genetics, Max Planck Institute for Ornithology, 82319 Seewiesen, Germany. bulla.mar@gmail.com b.kempenaers@orn.mpg.de.

Science (New York, N.Y.)
|June 15, 2019
PubMed
まとめ

この研究は 気候変動が海岸鳥の巣食いを増加させたという主張に 異議を唱えています 最初の分析の方法論的な問題は,これらの結論を裏付ける統計的証拠がないことを示唆しています.

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科学分野:

  • エコロジー
  • 環境科学
  • 鳥類学

背景:

  • 最近の研究では 気候変動が 捕食者-獲物のダイナミクスに 影響を及ぼしていることが示されています
  • 特に北極地域では 巣の捕食率が増加していることが報告されています
  • これらの発見は,海岸鳥の生存可能性について懸念を喚起しています.

研究 の 目的:

  • 気候変化と海岸鳥の巣の捕食に関する最近の報告書で用いられた統計的方法論を批判的に評価する.
  • 捕食率の増加が統計的に裏付けられているかどうかを判断する.
  • 気候変動と 捕食パターンの変化を 関連付けている証拠を 科学的に厳格に評価する

主な方法:

  • Kubelka et al が提示したデータの再分析
  • オリジナル統計モデルの潜在的な方法論的欠陥の特定と批判.
  • 捕食率の変化の重要性を評価するために,堅実な統計的手法を適用する.

主要な成果:

  • Kubelka et al が行った分析では,重要な方法論的問題が見つかりました.
  • 1950年代以降の巣の捕食率の増加に関する主張の統計的根拠は不足していることが判明しました.
  • 再評価されたデータに基づいて,気候変動と 岸鳥の巣の捕食パターンの変化との関連を立証する確固たる証拠は見つかりませんでした.

結論:

  • 気候変化による海岸鳥の巣食いの増加に関する 初期の結論は 統計的に裏付けられていません
  • 方法論的な限界は,以前の研究の結果を弱体化させる.
  • 環境の変化が海岸鳥の生態系に及ぼす潜在的な影響を理解するために,改善された方法論を用いたさらなる研究が必要である.