气候变化领域集成服务门户(CCPortal): Soil microbial communities and elk foraging intensity: implications for soil biogeochemical cycling in the sagebrush steppe

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DOI	10.1111/ele.12722
	Soil microbial communities and elk foraging intensity: implications for soil biogeochemical cycling in the sagebrush steppe
	Cline L.C.; Zak D.R.; Upchurch R.A.; Freedman Z.B.; Peschel A.R.
发表日期	2017
ISSN	1461-023X
EISSN	1461-0248
卷号	20 期号:2
英文摘要	Foraging intensity of large herbivores may exert an indirect top-down ecological force on soil microbial communities via changes in plant litter inputs. We investigated the responses of the soil microbial community to elk (Cervus elaphus) winter range occupancy across a long-term foraging exclusion experiment in the sagebrush steppe of the North American Rocky Mountains, combining phylogenetic analysis of fungi and bacteria with shotgun metagenomics and extracellular enzyme assays. Winter foraging intensity was associated with reduced bacterial richness and increasingly distinct bacterial communities. Although fungal communities did not respond linearly to foraging intensity, a greater β-diversity response to winter foraging exclusion was observed. Furthermore, winter foraging exclusion increased soil cellulolytic and hemicellulolytic enzyme potential and higher foraging intensity reduced chitinolytic gene abundance. Thus, future changes in winter range occupancy may shape biogeochemical processes via shifts in microbial communities and subsequent changes to their physiological capacities to cycle soil C and N. © 2017 John Wiley & Sons Ltd/CNRS
英文关键词	Bacteria; community assembly; decomposition; extracellular enzyme; foraging; functional gene; fungi; herbivore; metagenome
学科领域	Artemisia tridentata; Bacteria (microorganisms); Cervus elaphus; Fungi; soil; animal; Artemisia; bacterial phenomena and functions; bacterium; carbon cycle; chemistry; deer; fungus; genetics; grassland; growth, development and aging; herbivory; microbiology; nitrogen cycle; physiology; season; soil; Wyoming; Animals; Artemisia; Bacteria; Bacterial Physiological Phenomena; Carbon Cycle; Deer; Fungi; Grassland; Herbivory; Nitrogen Cycle; Seasons; Soil; Soil Microbiology; Wyoming
语种	英语
scopus关键词	Artemisia tridentata; Bacteria (microorganisms); Cervus elaphus; Fungi; soil; animal; Artemisia; bacterial phenomena and functions; bacterium; carbon cycle; chemistry; deer; fungus; genetics; grassland; growth, development and aging; herbivory; microbiology; nitrogen cycle; physiology; season; soil; Wyoming; Animals; Artemisia; Bacteria; Bacterial Physiological Phenomena; Carbon Cycle; Deer; Fungi; Grassland; Herbivory; Nitrogen Cycle; Seasons; Soil; Soil Microbiology; Wyoming
来源期刊	Ecology Letters
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/118431
作者单位	Department of Plant and Microbial Biology, University of Minnesota, St. Paul, MN, United States; School of Natural Resources & Environment, University of Michigan, Ann Arbor, MI, United States; Department of Ecology & Evolution, University of Michigan, Ann Arbor, MI, United States; Division of Plant and Soil Sciences, West Virginia University, Morgantown, WV, United States; Department of Conservation Biology, University of Minnesota, St. Paul, MN, United States
推荐引用方式 GB/T 7714	Cline L.C.,Zak D.R.,Upchurch R.A.,et al. Soil microbial communities and elk foraging intensity: implications for soil biogeochemical cycling in the sagebrush steppe[J],2017,20(2).
APA	Cline L.C.,Zak D.R.,Upchurch R.A.,Freedman Z.B.,&Peschel A.R..(2017).Soil microbial communities and elk foraging intensity: implications for soil biogeochemical cycling in the sagebrush steppe.Ecology Letters,20(2).
MLA	Cline L.C.,et al."Soil microbial communities and elk foraging intensity: implications for soil biogeochemical cycling in the sagebrush steppe".Ecology Letters 20.2(2017).