干旱区生态环境知识资源中心(Arid): Sediment DNA Records the Critical Transition of Bacterial Communities in the Arid Lake

Arid

DOI	10.1007/s00248-024-02365-4
	Sediment DNA Records the Critical Transition of Bacterial Communities in the Arid Lake
	Hu, Yang; Cai, Jian; Song, Yifu; Li, Guoqiang; Gong, Yi; Jiang, Xingyu; Tang, Xiangming; Shao, Keqiang; Gao, Guang
通讯作者	Gao, G
来源期刊	MICROBIAL ECOLOGY
ISSN	0095-3628
EISSN	1432-184X
出版年	2024
卷号	87 期号:1
英文摘要	It is necessary to predict the critical transition of lake ecosystems due to their abrupt, non-linear effects on social-economic systems. Given the promising application of paleolimnological archives to tracking the historical changes of lake ecosystems, it is speculated that they can also record the lake's critical transition. We studied Lake Dali-Nor in the arid region of Inner Mongolia because of the profound shrinking the lake experienced between the 1300 s and the 1600 s. We reconstructed the succession of bacterial communities from a 140-cm-long sediment core at 4-cm intervals and detected the critical transition. Our results showed that the historical trajectory of bacterial communities from the 1200 s to the 2010s was divided into two alternative states: state1 from 1200 to 1300 s and state2 from 1400 to 2010s. Furthermore, in the late 1300 s, the appearance of a tipping point and critical slowing down implied the existence of a critical transition. By using a multi-decadal time series from the sedimentary core, with general Lotka-Volterra model simulations, local stability analysis found that bacterial communities were the most unstable as they approached the critical transition, suggesting that the collapse of stability triggers the community shift from an equilibrium state to another state. Furthermore, the most unstable community harbored the strongest antagonistic and mutualistic interactions, which may imply the detrimental role of interaction strength on community stability. Collectively, our study showed that sediment DNA can be used to detect the critical transition of lake ecosystems.
英文关键词	Alternative states Critical transition Sedimentary DNA Stability Species interactions
类型	Article
语种	英语
开放获取类型	Green Published, hybrid
收录类别	SCI-E
WOS记录号	WOS:001217325300001
WOS关键词	EARLY-WARNING SIGNALS ; MICROBIAL INTERACTIONS ; TIME-SERIES ; DIVERSITY ; COMPETITION ; INDICATORS ; STABILITY ; NETWORKS
WOS类目	Ecology ; Marine & Freshwater Biology ; Microbiology
WOS研究方向	Environmental Sciences & Ecology ; Marine & Freshwater Biology ; Microbiology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/404907
推荐引用方式 GB/T 7714	Hu, Yang,Cai, Jian,Song, Yifu,et al. Sediment DNA Records the Critical Transition of Bacterial Communities in the Arid Lake[J],2024,87(1).
APA	Hu, Yang.,Cai, Jian.,Song, Yifu.,Li, Guoqiang.,Gong, Yi.,...&Gao, Guang.(2024).Sediment DNA Records the Critical Transition of Bacterial Communities in the Arid Lake.MICROBIAL ECOLOGY,87(1).
MLA	Hu, Yang,et al."Sediment DNA Records the Critical Transition of Bacterial Communities in the Arid Lake".MICROBIAL ECOLOGY 87.1(2024).