气候变化领域集成服务门户(CCPortal): Climate warming restructures food webs and carbon flow in high-latitude ecosystems

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DOI	10.1038/s41558-023-01893-0
	Climate warming restructures food webs and carbon flow in high-latitude ecosystems
	Manlick, Philip J.; Perryman, Nolan L.; Koltz, Amanda M.; Cook, Joseph A.; Newsome, Seth D.
发表日期	2024
ISSN	1758-678X
EISSN	1758-6798
英文摘要	Rapid warming of high-latitude ecosystems is increasing microbial activity and accelerating the decomposition of permafrost soils. This proliferation of microbial energy could restructure high-latitude food webs and alter carbon cycling between above-ground and below-ground habitats. We used stable isotope analysis (delta C-13) of amino acids to trace carbon flow through food webs exposed to warming and quantified changes in the assimilation of microbial carbon by Arctic tundra and boreal forest consumers. From 1990 to 2021, small mammals in boreal forests exhibited a significant reduction in the use of plant-based 'green' food webs and an increased use of microbially mediated 'brown' food webs, punctuated by a >30% rise in fungal carbon assimilation. Similarly, fungal carbon assimilation rose 27% in wolf spiders under experimental warming in Arctic tundra. These findings reveal a climate-mediated 'browning' of high-latitude food webs and point to an understudied pathway by which animals can impact carbon cycling under climate warming.
英文关键词	PERMAFROST CARBON; DYNAMICS; DECOMPOSITION; ECOLOGY; LITTER; GREEN; DIETS; OLD
WOS研究方向	Environmental Sciences ; Environmental Studies ; Meteorology & Atmospheric Sciences
WOS记录号	WOS:001135867400003
来源期刊	Nature Climate Change
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/282410
作者单位	United States Department of Agriculture (USDA); United States Forest Service; University of New Mexico; University of New Mexico; University of Texas System; University of Texas Austin
推荐引用方式 GB/T 7714	Manlick, Philip J.,Perryman, Nolan L.,Koltz, Amanda M.,et al. Climate warming restructures food webs and carbon flow in high-latitude ecosystems[J],2024.
APA	Manlick, Philip J.,Perryman, Nolan L.,Koltz, Amanda M.,Cook, Joseph A.,&Newsome, Seth D..(2024).Climate warming restructures food webs and carbon flow in high-latitude ecosystems.Nature Climate Change.
MLA	Manlick, Philip J.,et al."Climate warming restructures food webs and carbon flow in high-latitude ecosystems".Nature Climate Change (2024).