气候变化领域集成服务门户(CCPortal): Extinction intensity during Ordovician and Cenozoic glaciations explained by cooling and palaeogeography

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DOI	10.1038/s41561-019-0504-6
	Extinction intensity during Ordovician and Cenozoic glaciations explained by cooling and palaeogeography
	Saupe E.E.; Qiao H.; Donnadieu Y.; Farnsworth A.; Kennedy-Asser A.T.; Ladant J.-B.; Lunt D.J.; Pohl A.; Valdes P.; Finnegan S.
发表日期	2020
ISSN	17520894
卷号	13 期号:1
英文摘要	A striking feature of the marine fossil record is the variable intensity of extinction during superficially similar climate transitions. Here we combine climate models and species trait simulations to explore the degree to which differing palaeogeographic boundary conditions and differing magnitudes of cooling and glaciation can explain the relative intensity of marine extinction during greenhouse–icehouse transitions in the Late Ordovician and the Cenozoic. Simulations modelled the response of virtual species to cooling climate using a spatially explicit cellular automaton algorithm. We find that palaeogeography alone may be a contributing factor, as identical changes in meridional sea surface temperature gradients caused greater extinction in Late Ordovician simulations than in Cenozoic simulations. Differences in extinction from palaeogeography are significant, but by themselves are insufficient to explain observed differences in extinction intensity. However, when simulations included inferred changes in continental flooding and interval-specific models of sea surface temperature, predicted differences in relative extinction intensity were more consistent with observations from the fossil record. Our results support the hypothesis that intense extinction in the Late Ordovician is partially attributable to exceptionally rapid and severe cooling compared to Cenozoic events. © 2019, The Author(s), under exclusive licence to Springer Nature Limited.
语种	英语
scopus关键词	boundary condition; Cenozoic; cooling; flooding; fossil record; glaciation; Ordovician; sea surface temperature
来源期刊	Nature Geoscience
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/124535
作者单位	Department of Earth Sciences, University of Oxford, Oxford, United Kingdom; Institute of Zoology, Chinese Academy of Sciences, Chaoyang District, Beijing, China; Aix-Marseille University, CNRS, IRD, INRA, Collège de France, CEREGE, Aix-en-Provence, France; School of Geographical Sciences, University of Bristol, Clifton, Bristol, United Kingdom; Department of Earth and Environmental Sciences, University of Michigan, Ann Arbor, MI, United States; Department of Earth Sciences, University of California, Riverside, Riverside, CA, United States; Department of Integrative Biology, University of California, Berkeley, Berkeley, CA, United States
推荐引用方式 GB/T 7714	Saupe E.E.,Qiao H.,Donnadieu Y.,et al. Extinction intensity during Ordovician and Cenozoic glaciations explained by cooling and palaeogeography[J],2020,13(1).
APA	Saupe E.E..,Qiao H..,Donnadieu Y..,Farnsworth A..,Kennedy-Asser A.T..,...&Finnegan S..(2020).Extinction intensity during Ordovician and Cenozoic glaciations explained by cooling and palaeogeography.Nature Geoscience,13(1).
MLA	Saupe E.E.,et al."Extinction intensity during Ordovician and Cenozoic glaciations explained by cooling and palaeogeography".Nature Geoscience 13.1(2020).