Estrutura da comunidade de algas perifíticas em distintas veredas no cerrado goiano

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Data

2013-06

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Editor

Vera Lúcia Gomes Klein

Resumo

Environmental impacts provided by human actions alter the development of biological communities. This study aimed to evaluate the changes in structural attributes of periphytic algae in wetlands, among two conserved, two impacted by agriculture and two impacted in an urban area. The six Palm swamps are located in the Southeastern region of the Goiás state. Biotic and abiotic data were obtained in August and September 2008, April and May 2009, March 2010. Seasonality was an important factor in distinguishing in the limnological characteristics of the wetlands. Palm swamps in the dry period (2008) showed lower concentrations of phosphorus and greater turbidity, while in the rainy season (2010) were connected with pH closer to neutrality. Higher values of algal density were recorded for urban Palm swamps, predominantly the Bacillariophyceae in September 2008 and Cyanophyceae in May 2009. Among the 15 taxa selected as indicator species 11 were related to Palm swamps in agriculture and urban areas. Changes in the community density of periphytic algae in the six Palm swamps were mainly determined to the increased availability of nutrients and turbidity. We conclude that the higher values of species richness, diversity and density of periphytic algae Palm swamps impacted should to factors provided by action anthropogenic and seasonality.

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Águas ácidas, Ecologia, Epifíton, Solos hidromórficos, Acidic water, Epiphyton ecology, Hidromorphic soils

Citação

LEANDRINI, Josimeire Aparecida; FELISBERTO, Sirlene Aparecida; DUNCK, Bárbara. Estrutura da comunidade de algas perifíticas em distintas veredas no cerrado goiano. Revista de Biologia Neotropical, Goiânia, v. 10, n. 1, p. 9-20, jan./jun. 2013. Disponível em: <https://www.revistas.ufg.br/RBN/article/view/22313/15740>.