Major coral extinctions during the early Toarcian global warming event
Major coral extinctions during the early Toarcian global warming event
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早期托阿尔纪全球变暖事件期间的主要珊瑚灭绝
DOI：
10.1016/j.gloplacha.2021.103647
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发表时间：
2021
影响因子：
3.9
通讯作者：
Durlet, C.
中科院分区：
文献类型：
--
作者：
Vasseur, R.;Lathuilière, B.;Lazăr, I.;Martindale, R.C.;Bodin, S.;Durlet, C.
许多科学家认为，目前地球上物种的消失是第六次大规模灭绝;特别是珊瑚礁正在遭受重大破坏。硬珊瑚礁构成了今天地球上一些最多样化的生态系统的框架，以及在过去的2.5亿年中。早侏罗纪的Pliensbachian-Toarcian（P1-To）过渡是当今全球破坏的重要地质模拟，因为它提供了有关珊瑚在气候和海洋条件下生存的能力的见解。基于修订和大大扩展的分类的特提斯珊瑚动物群的两个阶段，我们揭示了灾难性的灭绝（49%在属和90.9%在物种水平）和随后的辐射组在早期Toarcian。在Pliensbachian晚期和早期Toarcian生物危机的破坏表明，这段时间可能是最重要的灭绝事件的石珊瑚，并从根本上塑造了未来的多样性和形态差异的珊瑚分支，在侏罗纪和白垩纪蓬勃发展。因此，这段时间应被视为更广泛的群体和珊瑚礁生态系统演化动力学的关键时期。这些关于早侏罗世事件期间珊瑚生存和恢复的数据对于当今生态系统崩溃和珊瑚栖息地保护的问题特别相关。
The current loss of taxa from our planet is considered by many scientists to be the sixth mass extinction; in particular, coral reefs are experiencing significant damage. Scleractinian coral reefs constitute the framework of some of the most diverse ecosystems on Earth today as well as throughout the last 250 million years. The Pliensbachian-Toarcian (Pl-To) transition in the Early Jurassic is an important geologic analogue for present-day global disruptions as it provides insights about the ability of corals to survive significant changes in climatic and oceanic conditions. Based on a revised and greatly expanded taxonomy of Tethyan coral faunas for both stages, we reveal a catastrophic extinction (49% at genus and 90.9% at species level) and subsequent radiation for the group during the early Toarcian. The devastation during the late Pliensbachian and early Toarcian biotic crisis suggests that this interval is potentially the most important extinction event for scleractinian corals and fundamentally shaped the future of diversity and morphological disparity within the coral clades that flourished during the Jurassic and Cretaceous. Consequently, this interval should be considered a key period in the evolutionary dynamics of the group and reef ecosystems more broadly. These data on coral survival and recovery during the Early Jurassic event are particularly pertinent for questions about present day ecosystem collapse and conservation of coral habitats.
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