DOI: 10.1111/ele.12722
Scopus记录号: 2-s2.0-85010425162
论文题名: Soil microbial communities and elk foraging intensity: implications for soil biogeochemical cycling in the sagebrush steppe
作者: Cline L.C. ; Zak D.R. ; Upchurch R.A. ; Freedman Z.B. ; Peschel A.R.
刊名: Ecology Letters
ISSN: 1461023X
EISSN: 1461-0248
出版年: 2017
卷: 20, 期: 2 起始页码: 202
结束页码: 211
语种: 英语
英文关键词: Bacteria
; community assembly
; decomposition
; extracellular enzyme
; foraging
; functional gene
; fungi
; herbivore
; metagenome
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
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 Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/107663
Appears in Collections: 气候减缓与适应
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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
Recommended Citation:
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]. Ecology Letters,2017-01-01,20(2)