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| Pinha, Gisele Daiane; Universidade Estadual de Maringá; Alessio, Priscila Colombelli; Universidade Estadual do Oeste do Paraná; Gurski, Fernanda de Almeida; Universidade Estadual do Oeste do Paraná; Sacramento, Patrícia Almeida; Universidade Estadual de Maringá; Pezenti, Tércio Abel; Instituto Chico Mendes de Conservação da Biodiversidade; Takeda, Alice Michiyo; Universidade Estadual de Maringá. |
| Chironomidae larvae (Diptera) are one of the most important families among aquatic insects due to the higher abundance and species richness, considered an important tool for ecological studies. This study evaluated the richness of Chironomidae assemblage and related the distribution with physical and chemical variables in five lakes of the Paraná river, in the Ilha Grande National Park. There were two samplings, one in the central region and another in the marginal area of the floodplain lakes. In each region were collected six samples, five for biological analysis and one for granulometric analysis. The granulometric composition and organic matter content were the principal variables influencing the density and richness of Chironomidae. The scores of the... |
| Tipo: Distribuição espacial |
Palavras-chave: 2.05.02.00-1 floodplain lakes; Composition; Abundance Ecologia de Ecossistemas. |
| Ano: 2013 |
URL: http://periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/10799 |
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| Behrend, Rômulo Diego de Lima; Universidade Estadual de Maringá; Teixeira, Mariana Carolina; Universidade Estadual de Maringá; Fernandes, Sue Ellen Prata; Universidade Estadual de Maringá; Camargo, Janielly Carvalho; Universidade Estadual de Maringá; Rosin, Gisele Cristina; Universidade Estadual de Maringá; Takeda, Alice Michiyo; Universidade Estadual de Maringá. |
| This study investigated the structure of the Oligochaeta and Chironomidae assemblages associated with monospecific stands of two submerged macrophyte species: Egeria najas and Hydrilla verticillata. Samplings were carried out in Leopoldo Backwater and Paraná river, in August 2008. To assess the structure of Oligochaeta and Chironomidae assemblage in each macrophyte we calculated: species density, richness, diversity, and evenness. A detrended correspondence analysis (DCA) was used to summarize Oligochaeta and Chironomidae assemblages composition. The highest values of species density and richness for the two groups were recorded in H. verticillata. Although there were no significant differences in density, richness and Shannon diversity, the assemblage... |
| Tipo: Distribuição espacial |
Palavras-chave: Ecology upper Paraná river; Submerged macrophytes; Hydrilla verticillata; Egeria najas; Invasion; Naididae Ecology. |
| Ano: 2013 |
URL: http://periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/10855 |
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