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Updated: Jun 29, 2026

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A Method for Quantifying Foliage-Dwelling Arthropods
Published on: October 20, 2019
化石記録における昆虫の多様性
1Department of Paleobiology, National Museum of Natural History, Washington, DC 20560.
まとめ
昆虫の多様性は,進化の歴史の大部分を通して高く,脊椎動物を上回っています. 彼らの成功は,急速な種の起源ではなく,低い絶滅率から生じ,主要な特徴は,開花植物よりもずっと前に確立されました.
科学分野:
- パレオントロジー・パレオントロジー
- 進化生物学の進化生物学について
- エントモロジー エントモロジー学
背景:
- 昆虫には膨大な化石記録があるが,その進化の成功はしばしば過小評価されている.
- 昆虫の多様性を理解するには,その地理年代的範囲を分析し,他の分類と比較する必要があります.
研究 の 目的:
- 昆虫ファミリーの進化史と多様性を評価する.
- 昆虫の多様化と放射線に寄与する要因を決定する.
- 昆虫の進化のタイミングを,アンジオスペルムの出現などの主要な環境変化に照らして調べる.
主な方法:
- 昆虫ファミリーのジオクロノロジック範囲のまとめと分析.
- 脊椎動物テトラポッドと海洋無脊椎動物との昆虫の多様性の比較分析.
- 昆虫の起源と絶滅の割合を,その進化の歴史を通して調べる.
主要な成果:
- 昆虫の多様性は,彼らの進化の歴史の91%で,保存された脊椎動物四足類の多様性を上回っています.
- 昆虫の多様化は,主に,ゆっくりと進化する海洋無脊椎動物に似た,例外的に低い絶滅率に起因する.
- 現代の昆虫の主要な放射は,2億4,500万年前に始まり,アニオスペルムの膨張とは無関係でした.
- 昆虫の重要なトロフィクメカニズムは,アニオスペルムの出現より約1億年前に確立されました.
結論:
- 昆虫の進化の成功は,絶滅率の低いことによって引き起こされる驚くべき安定性と長寿によって特徴付けられています.
- 昆虫の多様化は先行しており,アニオスペルムの進化と拡散に依存していない.
- 昆虫は,進化の軌跡が他の多くの主要なグループとは異なる非常に成功し,古代の系統を表しています.
キーワード:
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