Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1073/pnas.1918953117 |
Flat latitudinal diversity gradient caused by the Permian–Triassic mass extinction | |
Haijun Song; Shan Huang; Enhao Jia; Xu Dai; Paul B. Wignall; Alexander M. Dunhill | |
2020-07-06 | |
发表期刊 | Proceedings of the National Academy of Science
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出版年 | 2020 |
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. |
领域 | 地球科学 |
URL | 查看原文 |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/282730 |
专题 | 地球科学 |
推荐引用方式 GB/T 7714 | Haijun Song,Shan Huang,Enhao Jia,等. Flat latitudinal diversity gradient caused by the Permian–Triassic mass extinction[J]. Proceedings of the National Academy of Science,2020. |
APA | Haijun Song,Shan Huang,Enhao Jia,Xu Dai,Paul B. Wignall,&Alexander M. Dunhill.(2020).Flat latitudinal diversity gradient caused by the Permian–Triassic mass extinction.Proceedings of the National Academy of Science. |
MLA | Haijun Song,et al."Flat latitudinal diversity gradient caused by the Permian–Triassic mass extinction".Proceedings of the National Academy of Science (2020). |
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