Song, H, Huang, S, Jia, E et al. (3 more authors) (2020) Flat latitudinal diversity gradient caused by the Permian–Triassic mass extinction. Proceedings of the National Academy of Sciences of USA, 177 (30). pp. 17578-17583. ISSN 0027-8424
Abstract
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.
Metadata
Item Type: | Article |
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Authors/Creators: |
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Copyright, Publisher and Additional Information: | © 2020 Published under the PNAS license. This is an author produced version of an article published in Proceedings of the National Academy of Sciences. Uploaded in accordance with the publisher's self-archiving policy. |
Keywords: | biogeography; end-Permian mass extinction; global warming; ocean; anoxia; biodiversity |
Dates: |
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Institution: | The University of Leeds |
Academic Units: | The University of Leeds > Faculty of Environment (Leeds) > School of Earth and Environment (Leeds) > Earth Surface Science Institute (ESSI) (Leeds) The University of Leeds > Faculty of Environment (Leeds) > School of Earth and Environment (Leeds) > Institute for Applied Geosciences (IAG) (Leeds) |
Funding Information: | Funder Grant number NERC (Natural Environment Research Council) NE/P013724/1 |
Depositing User: | Symplectic Publications |
Date Deposited: | 19 Jun 2020 17:01 |
Last Modified: | 06 Jan 2021 01:38 |
Status: | Published |
Publisher: | National Academy of Sciences |
Identification Number: | 10.1073/pnas.1918953117 |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:162057 |
Commentary/Response Threads
- Song, H, Huang, S, Jia, E, Dai, X, Wignall, PB and Dunhill, AM Flat latitudinal diversity gradient caused by the Permian–Triassic mass extinction. (deposited 19 Jun 2020 17:01) [Currently Displayed]