Reconciling the role of organic matter pathways in aquatic food webs by measuring multiple tracers in individuals
作者: Timothy D. JardineRyan WoodsJonathan MarshallJames FawcettJaye LobegeigerDominic ValdezMartin J. Kainz
作者单位: 11 School of Environment and Sustainability, University of Saskatchewan, Saskatoon, Saskatchewan S7N 5B3 Canada
22 Australian Rivers Institute, Griffith University, Nathan, Queensland 4111 Australia
33 Queensland Department of Science, Information Technology, and Innovation, Dutton Park, Queensland 4001 Australia
44 Aquatic Lipid Research and Ecotoxicology (LIPTOX), WasserCluster—Biologische Station Lunz, Lunz am See A-3293 Austria
刊名: Ecology, 2015, Vol.96 (12), pp.3257-3269
来源数据库: Ecological Society of America
DOI: 10.1890/14-2153.1
关键词: arachidonic acidbenthic habitatBorder RiversQueenslandAustraliadiet qualitydocosahexaenoic acideicosapentaenoic acidessential fatty acidsfood-web subsidiespolyunsaturated fatty acidsstable isotopesterrestrial organic matterwater column
原始语种摘要: Few studies measure multiple ecological tracers in individual organisms, thus limiting our ability to differentiate among organic matter source pathways and understand consequences of dietary variation and the use of external subsidies in complex food webs. We combined two tracers, stable isotope (SI) ratios and fatty acids (FA), to investigate linkages among ecological compartments (water column, benthos, riparian zone) in food webs in waterholes of a dryland river network, the Border Rivers in southwestern Queensland, Australia. Comprehensive analyses of sources (plankton, periphyton, leaf litter, riparian grasses) and animals (benthic insects, mollusks, large crustaceans, fishes) for SI and FA showed that all three zones contribute to animal biomass, depending on species and life...
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影响因子:5.175 (2012)

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关键词翻译
关键词翻译
  • measuring 测量
  • expectations 期待的事物
  • aquatic 水生的
  • multiple 多次的
  • consumption 消耗
  • organic 有机的
  • estimate 估计
  • understanding 理解
  • quality 品质
  • matter 物质