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题名: Community-environment relationships of riverine invertebrate communities in central Chinese streams
作者: Jaehnig, Sonja C.1; Shah, Deep Narayan2, 3; Shah, Ram Devi Tachamo2, 3; Li, Fengqing2, 3; Cai, Qinghua4; Sundermann, Andrea3; Tonkin, Jonathan D.2, 3; Stendera, Sonja5, 6
关键词: Biomonitoring ; Hubei ; Land use ; Spatial scale ; Variation partitioning
刊名: ENVIRONMENTAL EARTH SCIENCES
发表日期: 2015-10-01
DOI: 10.1007/s12665-015-4466-8
卷: 74, 期:8, 页:6431-6442
收录类别: SCI
文章类型: Article
WOS标题词: Science & Technology ; Life Sciences & Biomedicine ; Physical Sciences
类目[WOS]: Environmental Sciences ; Geosciences, Multidisciplinary ; Water Resources
研究领域[WOS]: Environmental Sciences & Ecology ; Geology ; Water Resources
英文摘要: Chinese rivers are both highly biodiverse and highly under pressure, hence an urgent need exists to understand ecological drivers and disentangle different scales of stressors to support water management. Our aims were to (1) determine the most influential variables for benthic invertebrate occurrence, (2) compare results related to communities as opposed to metrics and (3) examine the role of spatial scales with relevance to management. Benthic invertebrate sampling was performed at 37 sites in selected tributaries of the middle reaches of the Yangtze, covering an environmental gradient with a focus on organic pollution (stratified sampling design). Ten metrics commonly used in biomonitoring were derived and analysed in parallel to assemblage data. Environmental variables covered 74 parameters from three different spatial scales, namely local, reach and catchment scale. We ran a CCA with each of the three subsets to find out the significant determining/explanatory variables, followed by pCCA and pRDA (for metric data) with these variables with forward selection to determine single variables important for each subset; we further used variation portioning for benthic invertebrate data. A high percentage of overall variability (70 %) of the assemblage structure was explained, with catchment- and local-scale variables being almost equally important. Small-scale variables tended to be more important than large-scale variables for the metric-based approach but not for the assemblage approach. Our results emphasise the need for spatially explicit regional studies in freshwater systems and suggest testing multi-metric assessment approaches to tackle water management and environmental health questions in China.
关键词[WOS]: WATER-QUALITY ; LAND-USE ; MACROINVERTEBRATE COMMUNITIES ; XIANGXI RIVER ; FUNCTIONAL INDICATORS ; LATITUDINAL GRADIENTS ; ECOLOGICAL STATUS ; BIODIVERSITY ; SYSTEM ; DIVERSITY
语种: 英语
WOS记录号: WOS:000362012400007
ISSN号: 1866-6280
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内容类型: 期刊论文
URI标识: http://ir.ihb.ac.cn/handle/342005/27262
Appears in Collections:淡水生态学研究中心_期刊论文

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作者单位: 1.Leibniz Inst Freshwater Ecol & Inland Fisheries I, Dept Ecosyst Res, D-12587 Berlin, Germany
2.Senckenberg Biodivers & Climate Res Ctr BiK F, D-60325 Frankfurt, Germany
3.Senckenberg Res Inst & Nat Hist Museum Frankfurt, Dept River Ecol & Conservat, D-63571 Gelnhausen, Germany
4.Chinese Acad Sci, Inst Hydrobiol, State Key Lab Freshwater Ecol & Biotechnol, Wuhan 430072, Peoples R China
5.Univ Duisburg Essen, Dept Appl Zool Hydrobiol, D-45141 Essen, Germany
6.Statkraft Markets GmbH, D-40476 Dusseldorf, Germany
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