globalchange  > 气候变化与战略
DOI: 10.1073/pnas.1918953117
论文题名:
Flat latitudinal diversity gradient caused by the Permian–Triassic mass extinction
作者: Song H.; Huang S.; Jia E.; Dai X.; Wignall P.B.; Dunhill A.M.
刊名: Proceedings of the National Academy of Sciences of the United States of America
ISSN: 0027-8424
出版年: 2020
卷: 117, 期:30
起始页码: 17578
结束页码: 17583
语种: 英语
英文关键词: Biodiversity ; Biogeography ; End-permian mass extinction ; Global warming ; Ocean anoxia
Scopus关键词: Article ; biodiversity ; biogeography ; climate change ; end Permian mass extinction ; environmental factor ; environmental monitoring ; environmental temperature ; fossil ; greenhouse effect ; latitude ; latitudinal diversity gradient ; marine environment ; nonhuman ; priority journal ; radiometric dating ; sea surface temperature
英文摘要: The latitudinal diversity gradient (LDG) is recognized as one of the most pervasive, global patterns of present-day biodiversity. However, the controlling mechanisms have proved difficult to identify because many potential drivers covary in space. The geological record presents a unique opportunity for understanding the mechanisms which drive the LDG by providing a direct window to deep-time biogeographic dynamics. Here we used a comprehensive database containing 52,318 occurrences of marine fossils to show that the shape of the LDG changed greatly during the Permian–Triassic mass extinction from showing a significant tropical peak to a flattened LDG. The flat LDG lasted for the entire Early Triassic (∼5 My) before reverting to a modern-like shape in the Middle Triassic. The environmental extremes that prevailed globally, especially the dramatic warming, likely induced selective extinction in low latitudes and accumulation of diversity in high latitudes through origination and poleward migration, which combined together account for the flat LDG of the Early Triassic. © 2020 National Academy of Sciences. All rights reserved.
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/164117
Appears in Collections:气候变化与战略

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作者单位: Song, H., State Key Laboratory of Biogeology and Environmental Geology, School of Earth Sciences, China University of Geosciences, Wuhan, 430074, China; Huang, S., Senckenberg Biodiversity and Climate Research Center, Frankfurt am Main, 60325, Germany; Jia, E., State Key Laboratory of Biogeology and Environmental Geology, School of Earth Sciences, China University of Geosciences, Wuhan, 430074, China; Dai, X., State Key Laboratory of Biogeology and Environmental Geology, School of Earth Sciences, China University of Geosciences, Wuhan, 430074, China; Wignall, P.B., School of Earth and Environment, University of Leeds, Leeds, LS2 9JT, United Kingdom; Dunhill, A.M., School of Earth and Environment, University of Leeds, Leeds, LS2 9JT, United Kingdom

Recommended Citation:
Song H.,Huang S.,Jia E.,et al. Flat latitudinal diversity gradient caused by the Permian–Triassic mass extinction[J]. Proceedings of the National Academy of Sciences of the United States of America,2020-01-01,117(30)
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