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dc.contributor.authorKolada, Agnieszkaen_UK
dc.contributor.authorWillby, Nigelen_UK
dc.contributor.authorDudley, Bernarden_UK
dc.contributor.authorNoges, Peeteren_UK
dc.contributor.authorSondergaard, Martinen_UK
dc.contributor.authorHellsten, Seppoen_UK
dc.contributor.authorMjelde, Mariten_UK
dc.contributor.authorPenning, W Ellisen_UK
dc.contributor.authorvan Geest, Gerbenen_UK
dc.contributor.authorBertrin, Vincenten_UK
dc.contributor.authorEcke, Fraukeen_UK
dc.contributor.authorMaemets, Helleen_UK
dc.contributor.authorKarus, Katriten_UK
dc.description.abstractThe European Water Framework Directive adopted in 2000, despite being prescriptive, has stimulated the development of a diverse array of biological assessment methods in Europe. The multitude of indicators currently used in biomonitoring lacks consistency and thus constrains the comparability of assessments at an international scale. Therefore, there is an argument to define and validate metrics with more universal application that can be applied EU-wide. We explored two metrics based on macrophyte taxonomic composition, the empirically based Intercalibration Common Metric for lake macrophytes (ICMLM) and the expert-based Ellenberg Index (EI), for their ability to detect eutrophication in different types of European lowland lakes. Data from 1474 unique lake-years from 11 countries were used to explore relationships between these metrics and the seasonal mean concentration of total phosphorus (TP) using linear regression.  ICMLM gave a linear and relatively strong (R=0.72,p<0.0001) response over the entire spectrum of TP concentrations, whereas EI performed best in lakes with the TP concentrations up to 250μgL−1 (R=0.64,p<0.0001) and was largely insensitive to higher phosphorus concentrations. Both metrics performed better in Nordic lakes than in the Central-Baltic ones. The responses of both metrics to TP were not modified or only very weakly modified by altitude, lake size and mean depth but were significantly affected by alkalinity. The ICMLM–TP relationship was stronger in lakes with water alkalinity>0.2meqL−1and significantly weaker in less buffered lakes. EI performed better in lakes with alkalinity<1.0meqL−1, whereas in high alkalinity lakes the response was significantly weaker. In all the lakes and in lakes from all the size, depth and alkalinity types, ICMLM was more strongly correlated with TP than EI and was proportionally less sensitive to alkalinity.  We also tested the effect of including helophytes on the metric response to eutrophication pressure by comparing the strength of the relationships to TP of the Ellenberg Index calculated firstly using only hydrophyte taxa (EI′HYDR) and secondly using all macrophyte taxa including both hydrophytes and emergent vegetation (EI′TOT). The differences in metric performance in all the lakes and all the size, depth and alkalinity types, except for the Nordic lakes, were non-significant. Thus, including helophytes generally did not significantly improve the strength of the EI–TP relationships.en_UK
dc.relationKolada A, Willby N, Dudley B, Noges P, Sondergaard M, Hellsten S, Mjelde M, Penning WE, van Geest G, Bertrin V, Ecke F, Maemets H & Karus K (2014) The applicability of macrophyte compositional metrics for assessing eutrophication in European lakes. Ecological Indicators, 45, pp. 407-415.
dc.rightsThe publisher does not allow this work to be made publicly available in this Repository. Please use the Request a Copy feature at the foot of the Repository record to request a copy directly from the author. You can only request a copy if you wish to use this work for your own research or private study.en_UK
dc.subjectMacrophyte metricsen_UK
dc.subjectTaxonomic compositionen_UK
dc.titleThe applicability of macrophyte compositional metrics for assessing eutrophication in European lakesen_UK
dc.typeJournal Articleen_UK
dc.rights.embargoreason[Kolada et al_Eco Indic_2014.pdf] The publisher does not allow this work to be made publicly available in this Repository therefore there is an embargo on the full text of the work.en_UK
dc.citation.jtitleEcological Indicatorsen_UK
dc.type.statusVoR - Version of Recorden_UK
dc.contributor.affiliationInstitute for Environmental Protectionen_UK
dc.contributor.affiliationBiological and Environmental Sciencesen_UK
dc.contributor.affiliationCentre for Ecology & Hydrology (CEH)en_UK
dc.contributor.affiliationEstonian University of Life Sciencesen_UK
dc.contributor.affiliationAarhus Universityen_UK
dc.contributor.affiliationUniversity of Ouluen_UK
dc.contributor.affiliationNorsk institutt for vannforskning (NIVA)en_UK
dc.contributor.affiliationNetherlands Institute of Ecology (NIOO)en_UK
dc.contributor.affiliationNorwegian Institute for Water Researchen_UK
dc.contributor.affiliationNational Research Institute of Science and Technology for Environment and Agriculture (Irstea)en_UK
dc.contributor.affiliationLulea University of Technologyen_UK
dc.contributor.affiliationEstonian University of Life Sciencesen_UK
dc.contributor.affiliationEstonian University of Life Sciencesen_UK
rioxxterms.apcnot requireden_UK
rioxxterms.typeJournal Article/Reviewen_UK
local.rioxx.authorKolada, Agnieszka|en_UK
local.rioxx.authorWillby, Nigel|0000-0002-1020-0933en_UK
local.rioxx.authorDudley, Bernard|en_UK
local.rioxx.authorNoges, Peeter|en_UK
local.rioxx.authorSondergaard, Martin|en_UK
local.rioxx.authorHellsten, Seppo|en_UK
local.rioxx.authorMjelde, Marit|en_UK
local.rioxx.authorPenning, W Ellis|en_UK
local.rioxx.authorvan Geest, Gerben|en_UK
local.rioxx.authorBertrin, Vincent|en_UK
local.rioxx.authorEcke, Frauke|en_UK
local.rioxx.authorMaemets, Helle|en_UK
local.rioxx.authorKarus, Katrit|en_UK
local.rioxx.projectInternal Project|University of Stirling|
local.rioxx.filenameKolada et al_Eco Indic_2014.pdfen_UK
Appears in Collections:Biological and Environmental Sciences Journal Articles

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