気候変動と長距離の移動鳥の減少
Christiaan Both1, Sandra Bouwhuis, C M Lessells
1Netherlands Institute of Ecology (NIOO-KNAW), PO Box 40, 6666ZG Heteren, The Netherlands. C.Both@rug.nl
Nature
|May 5, 2006
まとめ
気候変動により,フライキャッチャー (Ficedula hypoleuca) の繁殖がタイミングを間違えて発生し,人口が減少する. 早期の食糧ピークは特に有害で,人口の90%まで減少する.
科学分野:
- エコロジー エコロジー エコロジー
- 気候変動 生物学
- 鳥類学 鳥類学とは,鳥類学である.
背景:
- 気候変動に対する現象学的反応は,トロフィックレベルによって異なる.
- この非同期性は,鳥が幼虫のためのピークの食糧の利用を逃してしまうことにつながります.
研究 の 目的:
- 移住するフライキャッチャー (Ficedula hypoleuca) の現象的タイミングの誤りによる集団の影響を調査する.
- オランダの人口全体における人口動向に対する食糧ピークのタイミングの違いの影響を評価する.
主な方法:
- オランダの9つのフライキャッチャー群の比較分析.
- 食品現象学と繁殖タイミングとの関係で20年以上にわたる人口動向を調査する.
主要な成果:
- 早期の食糧ピークとタイミングの悪い繁殖の地域の人口は20年間で約90%減少しました.
- 食糧ピークが遅れた地域では,鳥類がより良く同期しているため,人口減少が弱かった.
- 食品現象学のさらなる進歩は,ピークが遅れた地域でも減少を引き起こすと予測されています.
結論:
- 気候変動によって引き起こされる現象的タイミングの誤差は,移住鳥の個体群にとって重大な脅威です.
- ピード・フライキャッチャーは, trofhic asynchrony が,人口の大幅な減少につながる可能性があることを示すケーススタディを提供します.
- 保存戦略では,気候変動が食物網の動態に与える影響の違いを考慮する必要があるかもしれません.
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