Freshwater ecosystem collapse and mass mortalities at the Paleocene-Eocene thermal maximum

doi:10.1016/j.gloplacha.2023.104175

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	Freshwater ecosystem collapse and mass mortalities at the Paleocene-Eocene thermal maximum
	Chen, Zuoling 1,5; Ding, Zhongli 1; Sun, Jimin 1; Yang, Shiling 1,2; Ni, Xijun3 ; Wang, Xu 1,2; Wang, Yongli 1; Zhang, Jiangyong 3; He, Wei 4
	2023-08-01
发表期刊	GLOBAL AND PLANETARY CHANGE
ISSN	0921-8181
卷号	227 期号:0 页码:13
摘要	The Paleocene-Eocene thermal maximum (PETM), an abrupt global warming event linked to massive injections of carbon into the ocean-atmosphere system, was associated with large-scale deep-sea benthic extinction and major changes in planktonic ecosystems. However, due to the paucity of well-preserved fossils and highresolution paleoenvironmental records, the PETM impacts on terrestrial ecosystems remain unclear. Here, we present geochemical and biological records of a lacustrine PETM section with exquisite fossils preserved from the Jianghan Basin, eastern China. Our data reveal the temporal relationship between carbon cycle perturbation, environmental changes, and biotic responses. Paleotemperatures derived from carbonate clumped isotope indicate a rapid increase by -11 degrees C, synchronous with a negative carbon isotope excursion in organic matter and carbonates. Mass mortalities of terrestrial and aquatic animals were coincident with rapid warming during the PETM. Taphonomic features of animals, along with geochemical and sedimentological evidence, suggest that hyperthermal-induced toxigenic cyanobacterial blooms appear to be the most probable cause of the mass mortalities. Our findings expose a direct link between extreme warmth and increased probability of catastrophic ecological events in terrestrial ecosystems.
关键词	Global warming PETM Freshwater ecosystem Mass mortality Cyanobacterial blooms
DOI	10.1016/j.gloplacha.2023.104175
关键词[WOS]	PERMIAN-TRIASSIC BOUNDARY ; CARBON-ISOTOPE EXCURSION ; CYANOBACTERIAL BLOOMS ; METHANE-HYDRATE ; CLIMATE-CHANGE ; RELEASE ; OCEAN ; END ; CONSEQUENCES ; EVOLUTION
收录类别	SCI
语种	英语
资助项目	Strategic Priority Research Program of Chinese Academy of Sciences[XDB26000000] ; Strategic Priority Research Program of Chinese Academy of Sciences[XDA20070202] ; National Natural Science Foundation of China[41772175] ; Key Research Program of the Institute of Geology amp; Geophysics, CAS[IGGCAS-201905] ; Open Fund Project of State Key Laboratory of Lithospheric Evolution[SKL-K202301] ; Youth Innovation Promotion Association CAS[2020066]
WOS研究方向	Physical Geography ; Geology
WOS类目	Geography, Physical ; Geosciences, Multidisciplinary
WOS记录号	WOS:001035183000001
出版者	ELSEVIER
引用统计
文献类型	期刊论文
条目标识符	http://119.78.100.205/handle/311034/22796
专题	中国科学院古脊椎动物与古人类研究所
通讯作者	Chen, Zuoling
作者单位	1.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Cenozo Geol & Environm, POB 9825, Beijing 100029, Peoples R China 2.Univ Chinese Acad Sci, Coll Earth & Planetary Sci, Beijing 100049, Peoples R China 3.Chinese Acad Sci, Inst Vertebrate Paleontol & Paleoanthropol, Key Lab Vertebrate Evolut & Human Origin, 142 Xi Zhi Men Wai St, Beijing 100044, Peoples R China 4.Chinese Acad Sci, Northwest Inst Ecoenvironm & Resources, Donggang West Rd 320, Lanzhou 730000, Peoples R China 5.Chinese Acad Sci, Inst Geol & Geophys, POB 9825, Beijing 100029, Peoples R China
推荐引用方式 GB/T 7714	Chen, Zuoling,Ding, Zhongli,Sun, Jimin,et al. Freshwater ecosystem collapse and mass mortalities at the Paleocene-Eocene thermal maximum[J]. GLOBAL AND PLANETARY CHANGE,2023,227(0):13.
APA	Chen, Zuoling.,Ding, Zhongli.,Sun, Jimin.,Yang, Shiling.,Ni, Xijun.,...&He, Wei.(2023).Freshwater ecosystem collapse and mass mortalities at the Paleocene-Eocene thermal maximum.GLOBAL AND PLANETARY CHANGE,227(0),13.
MLA	Chen, Zuoling,et al."Freshwater ecosystem collapse and mass mortalities at the Paleocene-Eocene thermal maximum".GLOBAL AND PLANETARY CHANGE 227.0(2023):13.

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