气候变化领域集成服务门户(CCPortal): Benthic invaders control the phosphorus cycle in the world's largest freshwater ecosystem

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DOI	10.1073/pnas.2008223118
	Benthic invaders control the phosphorus cycle in the world's largest freshwater ecosystem
	Li J.; Ianaiev V.; Huff A.; Zalusky J.; Ozersky T.; Katsev S.
发表日期	2021
ISSN	0027-8424
卷号	118 期号:6
英文摘要	The productivity of aquatic ecosystems depends on the supply of limiting nutrients. The invasion of the Laurentian Great Lakes, the world's largest freshwater ecosystem, by dreissenid (zebra and quagga) mussels has dramatically altered the ecology of these lakes. A key open question is how dreissenids affect the cycling of phosphorus (P), the nutrient that limits productivity in the Great Lakes. We show that a single species, the quagga mussel, is now the primary regulator of P cycling in the lower four Great Lakes. By virtue of their enormous biomass, quagga mussels sequester large quantities of P in their tissues and dramatically intensify benthic P exchanges. Mass balance analysis reveals a previously unrecognized sensitivity of the Great Lakes ecosystem, where P availability is now regulated by the dynamics of mussel populations while the role of the external inputs of phosphorus is suppressed. Our results show that a single invasive species can have dramatic consequences for geochemical cycles even in the world's largest aquatic ecosystems. The ongoing spread of dreissenids across a multitude of lakes in North America and Europe is likely to affect carbon and nutrient cycling in these systems for many decades, with important implications for water quality management. © 2021 National Academy of Sciences. All rights reserved.
英文关键词	Dreissenid mussels; Invasive species; Phosphorus cycle; The Great Lakes
语种	英语
scopus关键词	phosphorus; fresh water; phosphorus; animal experiment; animal tissue; Article; benthos; biomass; carbon cycling; concentration (parameter); controlled study; Dreissena bugensis; Dreissena polymorpha; freshwater environment; invasive species; mortality; nonhuman; nutrient cycling; phosphorus cycle; population dynamics; population growth; priority journal; regulatory mechanism; simulation; species invasion; water quality; animal; biological model; bivalve; ecosystem; environmental monitoring; introduced species; metabolism; time factor; Animals; Bivalvia; Ecosystem; Environmental Monitoring; Fresh Water; Introduced Species; Models, Biological; Phosphorus; Time Factors
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/251201
作者单位	Large Lakes Observatory, University of Minnesota Duluth, Duluth, MN 55812, United States; Department of Ocean Science, Hong Kong University of Science and Technology, Hong Kong; Department of Biology, University of Minnesota Duluth, Duluth, MN 55812, United States; Department of Physics and Astronomy, University of Minnesota Duluth, Duluth, MN 55812, United States
推荐引用方式 GB/T 7714	Li J.,Ianaiev V.,Huff A.,et al. Benthic invaders control the phosphorus cycle in the world's largest freshwater ecosystem[J],2021,118(6).
APA	Li J.,Ianaiev V.,Huff A.,Zalusky J.,Ozersky T.,&Katsev S..(2021).Benthic invaders control the phosphorus cycle in the world's largest freshwater ecosystem.Proceedings of the National Academy of Sciences of the United States of America,118(6).
MLA	Li J.,et al."Benthic invaders control the phosphorus cycle in the world's largest freshwater ecosystem".Proceedings of the National Academy of Sciences of the United States of America 118.6(2021).