dc.contributorTanaka, Marcel Okamoto
dc.contributorhttp://lattes.cnpq.br/2768658925977757
dc.contributorhttp://lattes.cnpq.br/9813845021079562
dc.creatorLibório, Rogério Aparecido
dc.date.accessioned2011-05-11
dc.date.accessioned2016-06-02T19:31:54Z
dc.date.available2011-05-11
dc.date.available2016-06-02T19:31:54Z
dc.date.created2011-05-11
dc.date.created2016-06-02T19:31:54Z
dc.date.issued2011-03-04
dc.identifierLIBÓRIO, Rogério Aparecido. A diversidade beta de comunidades de macroinvertebrados é menor em córregos degradados? Uma avaliação experimental. 2011. 56 f. Dissertação (Mestrado em Ciências Biológicas) - Universidade Federal de São Carlos, São Carlos, 2011.
dc.identifierhttps://repositorio.ufscar.br/handle/ufscar/2018
dc.description.abstractAiming to answer the question: preserved streams can sustain higher beta diversity than degraded streams? We estimated beta diversity of preserved and degraded streams during the rainy season of 2009 in pool and riffle areas using as substrate bags of leaf litter of tree species Talauma ovata. We analyzed the similarity in taxonomic composition of different mesohabitats using different indices of similarity (Sørensen, Morisita-Horn and Horn) and their corresponding estimators of diversity. Our study showed higher values of beta diversity in streams degraded when estimated by the similarity indices of Sørensen and Morisita-Horn. On the other hand the Horn index indicated no differences between the streams. This greater differentiation in faunistic composition between the different streams in degraded mesohabitats seems to be related to degradation of the riparian zone which favored the largest effect of hydrological disturbance due to increased volume of water especially in areas of pool resulting in elimination of taxa and increase local the dominance of more tolerant taxa, affecting beta diversity. This study paves the way for new understandings of the effects of degradation of riparian zones in streams, because the comparison between habitats within a given stream may provide a basis to assess their state of degradation, making possible new approaches to biomonitoring.
dc.publisherUniversidade Federal de São Carlos
dc.publisherBR
dc.publisherUFSCar
dc.publisherPrograma de Pós-Graduação em Ecologia e Recursos Naturais - PPGERN
dc.rightsAcesso Aberto
dc.subjectEcologia de comunidades
dc.subjectMacroinvertebrados aquáticos
dc.subjectCórregos
dc.subjectMesohabitats
dc.subjectBiomonitoramento
dc.subjectDiversidade beta
dc.subjectRemansos e corredeiras
dc.subjectÍndices de similaridade
dc.subjectBeta diversity
dc.subjectMacroinvertebrates
dc.subjectPools and riffles
dc.subjectSimilarity indices
dc.subjectBiomonitoring
dc.titleA diversidade beta de comunidades de macroinvertebrados é menor em córregos degradados? Uma avaliação experimental
dc.typeTesis


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