ファネロゾイク時代の海洋生物の多様性の空間構造
R A Close1, R B J Benson2, E E Saupe2
1School of Geography, Earth and Environmental Sciences, University of Birmingham, Edgbaston, Birmingham B15 2TT, UK. roger.close@gmail.com.
Science (New York, N.Y.)
|April 25, 2020
まとめ
海洋生物の多様性は 時間の経過よりも 地域によって大きく変化しました 環境要因,特にサンゴ礁は,これらのパターンを駆動し,長期的な増加仮説に挑戦しました. この研究は ディープタイム多様化研究を再考しています
科学分野:
- 古生物学
- マクロ進化
- 海洋生物学
背景:
- 海洋化石の記録は 地質学的な時間における多様性の変化を理解するために 極めて重要です
- 現存するグローバル分析は 化石記録における地理的および環境的サンプリングのバイアスによって制限されています
研究 の 目的:
- ファネロゾイクを通して地域海洋生物の多様性を定量化するための空間的に明示的な方法を開発する.
- 多様性の変動の要因を調査し,時間的,空間的な影響を比較する.
主な方法:
- ファネロゾイク全体で地域規模の海洋多様性を分析するために空間的に明白なアプローチを使用しました.
- 地理的な範囲と環境のサンプル採取を考慮して定量的多様性の変動
主要な成果:
- 地域的多様性の変動は時間的変動と同等であった.
- 環境要因,特にサンゴ礁の範囲は,地域間の多様性の違いを大きく説明しています.
- 持続的な長期的な多様性の増加に関する伝統的な仮説は,説明力に制限がありました.
結論:
- 空間構造と環境要因は,ファネロゾイク海の多様性のパターンを解釈する上で極めて重要です.
- マクロ進化の説明を再考するには,化石記録の空間的異質性を考慮する必要があります.
- 将来の深時間多様化研究は,空間的に明示的な方法論を採用すべきである.
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