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	Provedor de dados BABT (1) Rev. Bras. Bot. (1) Autor BICUDO,DENISE DE C. (1) RODRIGUES,LILIANA (1) Santos,Anderson Medeiros dos (1) Thomaz,Sidinei Magela (1) Palavra-chave Tropical floodplain (2) Aquatic macrophytes (1) Benthic algae (1) Correspondence Analysis (1) Paraná River (1) Periphyton (1) Similarity (1) Species composition (1) Succession (1) Mais... Tipo do documento Info:eu-repo/semantics/article (2) Ano 2008 (1) 2001 (1) País Brazil (2) Idioma Inglês (2)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 2 Primeira ... 1 ... Última Similarity among periphyton algal communities in a lentic-lotic gradient of the upper Paraná river floodplain, Brazil Rev. Bras. Bot. RODRIGUES,LILIANA; BICUDO,DENISE DE C.. Floristic comparison of periphyton communities from three systems with different hydrodynamic regimes (lentic, semilotic, and lotic) was carried out during high and low water periods on the Upper Paraná River floodplain. For each period and system, glass slides were sampled every two days during 18-day periods, and Eichhornia azurea Kunth petioles were sampled three times. A total of 228 species was collected, representing 12 classes, mainly diatoms and desmids. The highest species-richness was found in communities from lentic system and during high water. Species richness in the lotic system was more stable over succession and hydrological periods. Algal taxonomic structure in river community was clearly separated from the other two systems, with 43% of... Tipo: Info:eu-repo/semantics/article Palavras-chave: Periphyton; Benthic algae; Species composition; Similarity; Tropical floodplain. Ano: 2001 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-84042001000300001 Short term fluctuations and succession trends in tropical floodplain vegetation measured by correspondence analysis BABT Santos,Anderson Medeiros dos; Thomaz,Sidinei Magela. The aim of this work was to study the aquatic macrophytes community development to distinguish the fluctuations from succession trends at different temporal and spatial scales in the Upper Paraná River floodplain. The samples were collected quarterly from May 2000 to March 2002 in seven lakes with different degrees of connectivity from the main river channel and analyzed by between-class correspondence analysis. It was difficult to establish any pattern of community development at local scale but at a higher level of organization, disconnected lakes were characterized by fluctuation of the floristic composition. Connected lakes showed a straight trajectory, indicating that succession was occurring at these sites. Probably the income of propagules and... Tipo: Info:eu-repo/semantics/article Palavras-chave: Aquatic macrophytes; Correspondence Analysis; Paraná River; Succession; Tropical floodplain. Ano: 2008 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132008000400016 Registros recuperados: 2 Primeira ... 1 ... Última

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