化石記録における絶滅選択性の環境的決定因子
1Department of Geology & Geophysics, University of Wisconsin-Madison, Madison, Wisconsin 53706, USA. peters@geology.wisc.edu
Nature
|June 17, 2008
まとめ
海平面の変動と海洋シェルフ環境の変化は,海洋動物の絶滅パターンに大きく影響を与えます. ハビタット・ターンボールは,単なる異常な出来事ではなく,ファネロゾーイクエオン全体で一貫して海洋生物多様性を形作っています.
科学分野:
- パレオバイオロジーの古生物学
- マリン・バイオロジー マリン・バイオロジー
- 堆積地質学 堆積地質学とは
背景:
- 大量絶滅と絶滅の選択性は,古生物学における重要な問題である.
- 海平面の変動と大陸上の海域の変化は,海洋マクロ進化と生物の循環に影響を及ぼすと仮定されています.
- 絶滅の選択性における環境変動差の役割は不明である.
研究 の 目的:
- 海洋シェルフ環境のダイナミクスと絶滅パターンとの関係を調査する.
- 海洋生息地の時空ダイナミクスが絶滅の選択性と多様性を予測するかどうかを判断する.
- 海洋生物の組成の変化に対する生息地の転移の寄与を評価する.
主な方法:
- 堆積岩のパケットの時間持続をまとめました.
- 炭酸塩と原住民のクラスティック海洋棚環境の空間時間動態の分析.
- 環境ダイナミクスと属レベルの絶滅,絶滅の選択性,そしてパレオゾイクと近代の進化的ファウナの多様性パターンとの相関関係.
主要な成果:
- 炭酸塩と原産のクラスティック海洋シェルフ環境は,異なる時空ダイナミクスを表しています.
- これらの環境ダイナミクスは,属レベルの絶滅と絶滅の選択性のパターンをうまく予測します.
- 生息地の周回と関連する環境の変化は,絶滅と海洋生物の組成を決定する一貫した要因として特定されています.
結論:
- 海洋シェルフ生息地の転移と相関する環境の変化は,絶滅と絶滅の選択性の重要な要因である.
- これらの要因は,ファネロゾイク時代を通じて,海洋生物の組成の変化に一貫して影響を及ぼしています.
- 他の要因を排除しないものの,環境のダイナミクスは,マクロ進化のパターンを形成する上で重要な役割を果たします.
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