気候変動に対するアフロモンタンの森林の9万年の記録
Anne-Marie Lézine1, Kenji Izumi2, Masa Kageyama2
1Laboratoire d'Océanographie et du Climat, Expérimentation et Approche numérique/Institut Pierre-Simon Laplace (IPSL), Sorbonne Université-CNRS-IRD-Muséum National d'Histoire Naturelle (MNHN), 4 Place Jussieu, 75005, Paris, France. anne-marie.lezine@locean-ipsl.upmc.fr.
Science (New York, N.Y.)
|January 12, 2019
まとめ
アフリカの高原の古生物学は 十分に理解されていない. バンビリ湖
科学分野:
- 古代生態学
- アフリカの古気候学
- アフロモンタンの森林生態
背景:
- アフリカの高地での花粉の記録は稀で,アフロモンタンの森林の古生態学の理解を制限しています.
- 過去の氷河周期に対する これらの森林の反応は ほとんど不明です
研究 の 目的:
- アフリカの熱帯山脈における 過去9万年の植生の変化を再現するためです
- 氷河期と氷河期間の気候変動に対する アフロモンテンの森林の生態学的反応を調査する
主な方法:
- カメルーンのバンビリ湖から得られた高解像度花粉の分析
- バイオームのシフトと植物のダイナミクスの古生態学的再構築.
主要な成果:
- バンビリ湖は9万年の植生記録を 提供しています
- 森林は気候変動に対して 異なる反応を示しました 上部樹木線は不安定で 山地から低地の森林への移行は安定していました
- アフロモンタンの上部に生息する生態系の不安定さは,おそらくアフロモンタンの種多様性に影響を及ぼした.
結論:
- 上部樹林線の不安定さは,アフロモンタンの種多様性に大きく影響した.
- 山地から低地の森林への移行の安定性は,このゾーンの回復力を示唆しています.
- この研究は 熱帯山脈の生態系が 長期的な気候変動に対して 複雑で多様な反応を示しています
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