DOI: 10.1016/j.watres.2018.01.045
Scopus记录号: 2-s2.0-85042210847
论文题名: Sediment bacteria in an urban stream: Spatiotemporal patterns in community composition
作者: Roberto A.A. ; Van Gray J.B. ; Leff L.G.
刊名: Water Research
ISSN: 431354
出版年: 2018
卷: 134 起始页码: 353
结束页码: 369
语种: 英语
英文关键词: Bacterial community composition
; Spatiotemporal effects
; Streams
; Urban drainage
; WWTPs
Scopus关键词: Ecosystems
; Multivariant analysis
; River pollution
; Rivers
; Sediments
; Spatial distribution
; Bacterial community composition
; Spatiotemporal effects
; Streams
; Urban drainage
; WWTPs
; Bacteria
; dissolved oxygen
; DNA 16S
; nitrogen derivative
; bacterial DNA
; ribosome DNA
; Article
; bacterium
; biogeochemical cycling
; Comamonadaceae
; conductance
; gene sequence
; microbial community
; microbial diversity
; microbiological parameters
; nonhuman
; nutrient concentration
; Ohio
; oxidation reduction potential
; pH
; Phyllobacteriaceae
; Pirellulaceae
; priority journal
; redundancy analysis
; Rhodobacteraceae
; seasonal variation
; sediment
; spatiotemporal analysis
; species composition
; Sphingomonadaceae
; stream (river)
; turbidity
; urban area
; watershed
; bacterium
; city
; classification
; cluster analysis
; environmental monitoring
; genetics
; isolation and purification
; microbiology
; river
; sediment
; urbanization
; Bacteria (microorganisms)
; Comamonadaceae
; Phyllobacteriaceae
; Rhodobacteraceae
; Sphingomonadaceae
; Bacteria
; Cities
; Cluster Analysis
; DNA, Bacterial
; DNA, Ribosomal
; Environmental Monitoring
; Geologic Sediments
; Ohio
; Rivers
; Urbanization
英文摘要: Sediment bacterial communities play a critical role in biogeochemical cycling in lotic ecosystems. Despite their ecological significance, the effects of urban discharge on spatiotemporal distribution of bacterial communities are understudied. In this study, we examined the effect of urban discharge on the spatiotemporal distribution of stream sediment bacteria in a northeast Ohio stream. Water and sediment samples were collected after large storm events (discharge > 100 m) from sites along a highly impacted stream (Tinkers Creek, Cuyahoga River watershed, Ohio, USA) and two reference streams. Although alpha (α) diversity was relatively constant spatially, multivariate analysis of bacterial community 16S rDNA profiles revealed significant spatial and temporal effects on beta (β) diversity and community composition and identified a number of significant correlative abiotic parameters. Clustering of upstream and reference sites from downstream sites of Tinkers Creek combined with the dominant families observed in specific locales suggests that environmentally-induced species sorting had a strong impact on the composition of sediment bacterial communities. Distinct groupings of bacterial families that are often associated with nutrient pollution (i.e., Comamonadaceae, Rhodobacteraceae, and Pirellulaceae) and other contaminants (i.e., Sphingomonadaceae and Phyllobacteriaceae) were more prominent at sites experiencing higher degrees of discharge associated with urbanization. Additionally, there were marked seasonal changes in community composition, with individual taxa exhibiting different seasonal abundance patterns. However, spatiotemporal variation in stream conditions did not affect bacterial community functional profiles. Together, these results suggest that local environmental drivers and niche filtering from discharge events associated with urbanization shape the bacterial community structure. However, dispersal limitations and interactions among other species likely play a role as well. © 2018 Elsevier Ltd Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/112928
Appears in Collections: 气候减缓与适应
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作者单位: Department of Biological Sciences, Kent State University, Kent, OH 44242, United States
Recommended Citation:
Roberto A.A.,Van Gray J.B.,Leff L.G.. Sediment bacteria in an urban stream: Spatiotemporal patterns in community composition[J]. Water Research,2018-01-01,134