气候变化领域集成服务门户(CCPortal): The rise of angiosperms pushed conifers to decline during global cooling

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DOI	10.1073/pnas.2005571117
	The rise of angiosperms pushed conifers to decline during global cooling
	Condamine F.L.; Silvestro D.; Koppelhus E.B.; Antonelli A.
发表日期	2020
ISSN	0027-8424
起始页码	28867
结束页码	28875
卷号	117 期号:46
英文摘要	Competition among species and entire clades can impact species diversification and extinction, which can shape macroevolutionary patterns. The fossil record shows successive biotic turnovers such that a dominant group is replaced by another. One striking example involves the decline of gymnosperms and the rapid diversification and ecological dominance of angiosperms in the Cretaceous. It is generally believed that angiosperms outcompeted gymnosperms, but the macroevolutionary processes and alternative drivers explaining this pattern remain elusive. Using extant time trees and vetted fossil occurrences for conifers, we tested the hypotheses that clade competition or climate change led to the decline of conifers at the expense of angiosperms. Here, we find that both fossil and molecular data show high congruence in revealing 1) low diversification rates, punctuated by speciation pulses, during warming events throughout the Phanerozoic and 2) that conifer extinction increased significantly in the Mid-Cretaceous (100 to 110 Ma) and remained high ever since. Their extinction rates are best explained by the rise of angiosperms, rejecting alternative models based on either climate change or time alone. Our results support the hypothesis of an active clade replacement, implying that direct competition with angiosperms increased the extinction of conifers by pushing their remaining species diversity and dominance out of the warm tropics. This study illustrates how entire branches on the Tree of Life may actively compete for ecological dominance under changing climates. © 2020 National Academy of Sciences. All rights reserved.
英文关键词	Competition \| gymnosperms \| macroevolution \| paleoenvironment
语种	英语
scopus关键词	angiosperm; article; cladistics; climate change; competition; conifer; cooling; Cretaceous; fossil; human; nonhuman; paleoenvironment; species differentiation; species diversity; tree of life; tropics; warming
来源期刊	Proceedings of the National Academy of Sciences of the United States of America
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/160721
作者单位	Condamine, F.L., CNRS, UMR 5554 Institut des Sciences de l’Evolution de Montpellier (Université de Montpellier), Montpellier, 34095, France, Department of Biological Sciences, University of Alberta, Edmonton, AB T6G 2E9, Canada; Silvestro, D., Department of Biology, University of Fribourg, Fribourg, 1700, Switzerland, Department of Biological and Environmental Sciences, University of Gothenburg, Gothenburg, SE-405 30, Sweden, Gothenburg Global Biodiversity Centre, Gothenburg, SE-405 30, Sweden; Koppelhus, E.B., Department of Biological Sciences, University of Alberta, Edmonton, AB T6G 2E9, Canada; Antonelli, A., Department of Biological and Environmental Sciences, University of Gothenburg, Gothenburg, SE-405 30, Sweden, Gothenburg Global Biodiversity Centre, Gothenburg, SE-405 30, Sweden, Department of Plant Sciences, University of Oxford, South Parks Road, Oxford, OX1 3RB, United Kingdom, Royal Botanic Gardens, Kew, Richmond, Surrey, TW9 3AE, United Kingdom
推荐引用方式 GB/T 7714	Condamine F.L.,Silvestro D.,Koppelhus E.B.,et al. The rise of angiosperms pushed conifers to decline during global cooling[J],2020,117(46).
APA	Condamine F.L.,Silvestro D.,Koppelhus E.B.,&Antonelli A..(2020).The rise of angiosperms pushed conifers to decline during global cooling.Proceedings of the National Academy of Sciences of the United States of America,117(46).
MLA	Condamine F.L.,et al."The rise of angiosperms pushed conifers to decline during global cooling".Proceedings of the National Academy of Sciences of the United States of America 117.46(2020).