Ecological relationships between phytoplankton communities and different spatial scales in European reservoirs: implications at catchment level monitoring programmes.

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dc.contributor.authorCabecinha, Edna
dc.contributor.authorVan den Brink, Paul J.
dc.contributor.authorCabral, João Alexandre
dc.contributor.authorCortes, Rui
dc.contributor.authorLourenço, Martinho
dc.contributor.authorPardal, Miguel Ângelo
dc.date.accessioned2015-03-17T15:23:37Z
dc.date.available2015-03-17T15:23:37Z
dc.date.issued2009
dc.description.abstractPhytoplankton communities are structured by factors acting over temporal and spatial scales. Identifying which factors are driving spatial patterns in aquatic communities is the central aim of ecology. In this study, data sets of phytoplankton communities and environmental data of two Portuguese reservoirs types (lowland ‘‘riverine reservoirs’’ and higher altitude ‘‘artificial lake reservoirs’’) were used to determine the importance of environmental variables at different spatial (geographical, regional and local) and time scales (seasons, years) on the community structure. In all the data sets, the multivariate ordination technique Canonical Correspondence Analysis (CCA) showed that regional and local scales explained the majority (9–18% and 13–19%, respectively) of the taxa variance. However, for ‘‘riverine reservoirs’’, time variables were more important, explaining 27% of the variability in phytoplankton assemblages. Variance partitioning was used to assess the individual importance of the three spatial scales and time for the community structure of the two reservoir types. The majority of among-site variability (5.9–21.4%) was accounted for by time variables, with local, regional, and geographical scale variables accounting for 3.3– 5.6%, 3.7–4.5% and 2.6–2.9%, respectively. The effects of different spatial scales on phytoplankton communities were clearly interrelated; thus, implying that phytoplankton assemblages are capable of detecting stress from catchment to site scales.pt
dc.identifier.citationCabecinha E. et al, 2009pt
dc.identifier.otherdoi: 10.1007/s10750-009-9731-y
dc.identifier.urihttp://hdl.handle.net/10348/4314
dc.language.isoengpt
dc.peerreviewedyespt
dc.publisherJ. Padisakpt
dc.relation.ispartofCITAB - Centro de Investigação e de Tecnologias Agro-Ambientais e Biológicaspt
dc.rightsrestricted accesspt
dc.subjectPhytoplanktonpt
dc.subjectEcological statuspt
dc.subjectReservoirspt
dc.subjectSpatial scalespt
dc.subjectMultivariate analysispt
dc.subjectPartial constrained ordinationpt
dc.titleEcological relationships between phytoplankton communities and different spatial scales in European reservoirs: implications at catchment level monitoring programmes.pt
dc.typejournal articlept
degois.publication.firstPage27pt
degois.publication.issue628pt
degois.publication.lastPage45pt
degois.publication.locationSpringer Science+Business Media B.V.pt
degois.publication.titleHydrobiologiapt
dspace.entity.typePublicationen
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