气候变化领域集成服务门户(CCPortal): Forest defoliator outbreaks alter nutrient cycling in northern waters

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DOI	10.1038/s41467-021-26666-1
	Forest defoliator outbreaks alter nutrient cycling in northern waters
	Woodman S.G.; Khoury S.; Fournier R.E.; Emilson E.J.S.; Gunn J.M.; Rusak J.A.; Tanentzap A.J.
发表日期	2021
ISSN	2041-1723
卷号	12 期号:1
英文摘要	Insect defoliators alter biogeochemical cycles from land into receiving waters by consuming terrestrial biomass and releasing biolabile frass. Here, we related insect outbreaks to water chemistry across 12 boreal lake catchments over 32-years. We report, on average, 27% lower dissolved organic carbon (DOC) and 112% higher dissolved inorganic nitrogen (DIN) concentrations in lake waters when defoliators covered entire catchments and reduced leaf area. DOC reductions reached 32% when deciduous stands dominated. Within-year changes in DOC from insect outbreaks exceeded 86% of between-year trends across a larger dataset of 266 boreal and north temperate lakes from 1990 to 2016. Similarly, within-year increases in DIN from insect outbreaks exceeded local, between-year changes in DIN by 12-times, on average. As insect defoliator outbreaks occur at least every 5 years across a wider 439,661 km2 boreal ecozone of Ontario, we suggest they are an underappreciated driver of biogeochemical cycles in forest catchments of this region. © 2021, The Author(s).
语种	英语
scopus关键词	biogeochemical cycle; concentration (composition); dissolved inorganic nitrogen; dissolved organic carbon; lake water; nutrient cycling; water chemistry; Canada; Ontario [Canada]; Hexapoda; carbon; animal; biomass; climate change; ecology; ecosystem; epidemic; forest; insect; lake; Ontario; plant disease; Animals; Biomass; Carbon; Climate Change; Disease Outbreaks; Ecology; Ecosystem; Forests; Insecta; Lakes; Nutrients; Ontario; Plant Diseases
来源期刊	Nature Communications
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/251317
作者单位	Ecosystems and Global Change Group, Department of Plant Sciences, University of Cambridge, Cambridge, CB2 3EA, United Kingdom; Forest Ecology and Conservation Group, University of Cambridge Conservation Research Institute, University of Cambridge, Cambridge, CB2 3QZ, United Kingdom; Natural Resources Canada, Canadian Forest Service, Great Lakes Forestry Centre, 1219 Queen St. E, Sault Ste. Marie, ON P6A 2E5, Canada; Cooperative Freshwater Ecology Unit, Vale Living with Lakes Centre, Laurentian University, 935 Ramsey Lake Road, Sudbury, ON P3E 2C6, Canada; Dorset Environmental Science Centre, Ontario Ministry of the Environment, Conservation and Parks, 1026 Bellwood Acres Road, Dorset, ON P0A 1E0, Canada
推荐引用方式 GB/T 7714	Woodman S.G.,Khoury S.,Fournier R.E.,et al. Forest defoliator outbreaks alter nutrient cycling in northern waters[J],2021,12(1).
APA	Woodman S.G..,Khoury S..,Fournier R.E..,Emilson E.J.S..,Gunn J.M..,...&Tanentzap A.J..(2021).Forest defoliator outbreaks alter nutrient cycling in northern waters.Nature Communications,12(1).
MLA	Woodman S.G.,et al."Forest defoliator outbreaks alter nutrient cycling in northern waters".Nature Communications 12.1(2021).