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地球温暖化と海洋酸性化の下でのサンゴ礁の将来予測
John M Pandolfi1, Sean R Connolly, Dustin J Marshall
1Australian Research Council (ARC) Centre of Excellence for Coral Reef Studies, St. Lucia, Queensland 4072, Australia. j.pandolfi@uq.edu.au
Science (New York, N.Y.)
|July 23, 2011
まとめ
珊瑚礁は,白化などの気候変動の影響により,世界的な減少に直面しています. しかし,新たな証拠によると,サンゴ礁の劣化は,これまで予想されていたよりも,時間と空間により多様化している可能性があるという.
科学分野:
- マリン・バイオロジー マリン・バイオロジー
- 気候変動科学 気候変動科学
- エコロジー エコロジー エコロジー
背景:
- 珊瑚礁は,気候変動に関連した広範な劣化を経験しています.
- 大量漂白現象と海洋酸化は,サンゴ礁の生存に重大な脅威をもたらす.
- 現在の予測は,現代のサンゴ礁の均一で差し迫った世界的な消失をしばしば示唆しています.
研究 の 目的:
- 均一なサンゴ礁の衰退に関する支配的な見解に異議を唱えるため.
- 新興の証拠に基づいたリーフフューチャーの代替シナリオを探求する.
- リーフ予測における不確実性を減らすための研究のための重要な分野を特定する.
主な方法:
- 珊瑚の生理学的反応に関する新たな証拠のレビュー.
- 漂白感受性と回復における地理的変動の分析.
- 気候変動に対する過去のサンゴ礁の反応の調査.
- 温暖化への潜在的適応率の評価.
主要な成果:
- 海洋酸性化に対するサンゴの化反応には,変動性がある.
- 珊瑚の漂白感受性と回復の地理的な違いが観察されています.
- 過去の気候変動への対応と適応の可能性は,異質なサンゴ礁の未来を示唆しています.
- サンゴ礁の劣化は,現在予測されているよりも,より大きな時間的,空間的な異質性で起こる可能性が高い.
結論:
- 珊瑚礁の未来は,世界の均一な衰退よりも異質なものであるかもしれない.
- 過去の気候変動の影響,相互作用するストレス要因,適応に関するさらなる研究が必要である.
- アクリマテーションと適応コストを理解することは,正確なサンゴ礁の将来の予測に不可欠です.
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