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dc.contributor.authorPereira, Cátia Lúcio
dc.contributor.authorRaposeiro, Pedro
dc.contributor.authorCosta, Ana Cristina
dc.contributor.authorBao, Roberto
dc.contributor.authorGiralt, Santiago
dc.contributor.authorGonçalves, Vítor
dc.date.accessioned2017-03-16T13:01:52Z
dc.date.available2017-03-16T13:01:52Z
dc.date.issued2014
dc.identifier.citationPereira, C.L., Raposeiro, P.M., Costa, A.C. et al. Hydrobiologia (2014) 730: 93. doi:s10750-014-1824-6es_ES
dc.identifier.issn1573-5117
dc.identifier.urihttp://hdl.handle.net/2183/18283
dc.description.abstract[Abstract] Subfossil biotic assemblages in lakes’ surface sediments have been used to infer ecological conditions across environmental gradients. Local variables are usually the major drivers of assemblage composition, but in remote oceanic islands biogeographic filters may play a significant role. To assess the contribution of local and regional filters in the composition of subfossil diatom and chironomid assemblages in surface sediments, 41 lakes in Azores archipelago were studied and related to environmental variables. Ordination techniques were used to identify the forcing factors that best explain the composition of these assemblages. Both assemblages are influenced by multiple limnological variables (conductivity, pH and nutrients). However, diatom assemblages differed mainly in the proportion of planktonic versus benthic species along lakes’ depth gradient while chironomids differed significantly among islands but not among lake depths. Thus, biogeographic filters play an important role in shaping islands’ freshwater communities, particularly insect ones, more influenced by geographic variables. Results demonstrate the accuracy and potential of biotic remains in sediments for applied studies of lake ecology, trophic status, climatic trends and ecological reconstruction and evolution of lakes. In the Azores, the application of this information for the development of inference models is envisaged as a further step to accomplish these goals.es_ES
dc.description.sponsorshipPart of this study was financed by the Fundo Regional da Ciência e Tecnologia (M3.1.7/F/009/2011) and the PaleoNAO project of the Spanish Ministry of Education (CGL2010-15767). We thank the Freshwater Ecology Group from the University of the Azores for all the help in field and laboratory work. The surveys performed comply with the current laws of Portugales_ES
dc.description.sponsorshipAzores. Fundo Regional da Ciência e Tecnologia; M3.1.7/F/009/2011es_ES
dc.language.isoenges_ES
dc.publisherSpringeres_ES
dc.relationinfo:eu-repo/grantAgreement/MICINN/Plan Nacional de I+D+i 2008-2011/CGL2010-15767/ES/EVOLUCION DE LA NAO DURANTE LOS ULTIMOS 15000 AÑOS EN LA PENINSULA IBERICA Y EN AZORES A PARTIR DEL ESTUDIO DE REGISTROS LACUSTRES Y DATOS CLIMATICOS INSTRUMENTALES/
dc.relation.urihttps://doi.org/10.1007/s10750-014-1824-6es_ES
dc.rightsThe final publication is available at Springer via https://doi.org/10.1007/s10750-014-1824-6es_ES
dc.subjectAzoreses_ES
dc.subjectChironomid assemblageses_ES
dc.subjectDiatom assemblageses_ES
dc.subjectLocal and regional filterses_ES
dc.subjectOceanic islandses_ES
dc.subjectSurface sedimentses_ES
dc.titleBiogeography and lake morphometry drive diatom and chironomid assemblages’ composition in lacustrine surface sediments of oceanic islandses_ES
dc.typeinfo:eu-repo/semantics/articlees_ES
dc.rights.accessinfo:eu-repo/semantics/openAccesses_ES
UDC.journalTitleHydrobiologiaes_ES
UDC.volume730es_ES
UDC.issue1es_ES
UDC.startPage93es_ES
UDC.endPage112es_ES


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