地球温暖化による熱失調率の極端なエスカレーション
Lisa Bjerregaard Jørgensen1, Michael Ørsted1, Hans Malte1
1Section for Zoophysiology, Department of Biology, Aarhus University, Aarhus, Denmark.
Nature
|October 26, 2022
まとめ
地球温暖化が エクトーサームに 深刻な脅威をもたらしています 適度な温度上昇でさえ 熱失調率を大幅に加速し 死亡率を増やし 気候変動の影響を過小評価する可能性があります
科学分野:
- 生理学
- エコロジー
- 気候変動の生物学
背景:
- 温度はエクトームの生理学と分布に重大な影響を及ぼします.
- 地球温暖化が世界中で 熱環境を変えています
研究 の 目的:
- 成長,ホメオスタシス,熱不全を含むエクトーサーム生物学的プロセスの温度感度を定量化する.
- 気候温暖化がエクトーサームの熱失調率に与える影響を予測する.
主な方法:
- 複数のエクトーサーム種における生化学過程の速度の分析
- 異なる生理学的プロセスに対する活性化エネルギー (Ea) の計算.
- 将来の温暖化シナリオの下での熱障害率の増加をモデル化します.
主要な成果:
- 生物学的維持プロセスは 摂氏度に7%増加します
- 熱失調率は 摂氏1度あたり100%以上増加します
- 適度な温暖化は2100年までに熱障害率を774% (陸上) と180% (水上) 増加させる可能性がある.
結論:
- エクトーサームは熱不全の過程で極端な熱感を示します.
- 予想される熱波と温暖化により エクトーサーマによる死亡率が不均衡に上昇します
- 現在のモデルでは 地球温暖化が エクトーサーム種に与える影響を過小評価しているかもしれません
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