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白垩纪-古近纪事件促进了陆地和水生生态系统之间的谱系转变。

K-Pg events facilitated lineage transitions between terrestrial and aquatic ecosystems.

作者信息

Procheş Serban, Polgar Gianluca, Marshall David J

机构信息

Discipline of Geography, University of KwaZulu-Natal, Westville Campus, PO Box X54001, Durban 4000, South Africa Environmental and Life Sciences Programme, Universiti Brunei Darussalam, Jalan Tungku Link 1410, Brunei Darussalam

Environmental and Life Sciences Programme, Universiti Brunei Darussalam, Jalan Tungku Link 1410, Brunei Darussalam.

出版信息

Biol Lett. 2014 Jun;10(6). doi: 10.1098/rsbl.2014.0010.

Abstract

We use dated phylogenetic trees for tetrapod vertebrates to identify lineages that shifted between terrestrial and aquatic ecosystems in terms of feeding or development, and to assess the timing of such events. Both stem and crown lineage ages indicate a peak in transition events in correspondence with the K-Pg mass extinction. This meets the prediction that changes in competitive pressure and resource availability following mass extinction events should facilitate such transitions.

摘要

我们使用有时间标记的四足脊椎动物系统发育树,来识别在摄食或发育方面在陆地和水生生态系统之间转换的谱系,并评估此类事件发生的时间。干群和冠群谱系的年代都表明,与白垩纪-古近纪大灭绝相对应,过渡事件出现了一个峰值。这符合这样的预测,即大灭绝事件后竞争压力和资源可用性的变化应该会促进这种过渡。

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本文引用的文献

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Extinctions in ancient and modern seas.古代和现代海洋中的灭绝事件。
Trends Ecol Evol. 2012 Nov;27(11):608-17. doi: 10.1016/j.tree.2012.07.010. Epub 2012 Aug 10.
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Marine and terrestrial ecology: unifying concepts, revealing differences.海洋和陆地生态学:统一概念,揭示差异。
Trends Ecol Evol. 2012 Oct;27(10):535-41. doi: 10.1016/j.tree.2012.06.002. Epub 2012 Jul 13.

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