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River damming affects seedling communities of a floodplain forest in the Central Amazon Acta Botanica
Rocha,Maíra da; Feitosa,Yuri Oliveira; Wittmann,Florian; Piedade,Maria Teresa Fernandez; Resende,Angélica Faria de; Assis,Rafael Leandro de.
ABSTRACT The flood pulse of black water rivers in the Amazon basin determines the composition of species along the flood gradient in igapó forests. The Balbina dam, built on the Uatumã River, has altered the flood pulse and caused changes in the floristic composition of adult trees throughout the downstream area. There is a lack of studies on how communities of seedlings in igapó forests respond to changes in the flood pulse. This study investigates the response of seedling communities in the igapó forest downstream the Balbina dam and compares it with two pristine areas. The areas were sampled with transects of 1x25 m within 36 plots (25x25 m) along the flood gradient. Richness and dominance were calculated by simple regression and ordination analyses....
Tipo: Info:eu-repo/semantics/article Palavras-chave: Dams; Environmental stress; Flood gradient; Floodplain; Hydrologic cycle; Seedlings; Tropical rivers.
Ano: 2020 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062020000100192
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Flora of inland Atlantic riparian forests in southwestern Brazil Biota Neotropica
Faxina,Claudenice; Fischer,Erich; Pott,Arnildo.
The flora of the Atlantic Rainforest of Mato Grosso do Sul, southwestern Brazil, has not been inventoried in spite of being the westernmost inland region of this domain. We present an inventory of the riparian flora of inland Atlantic Forest in Mato Grosso do Sul. We describe the species distribution along three habitats with contrasting flood conditions: non-flooded, seasonally flooded, and swampy forests. The inventory consisted of sampling every reproductive individual, during 12 months on 1.12 ha of plots inside a 24 ha study area. We recorded 1967 individuals of 253 species and 72 families. The most representative families in number of species were Asteraceae (27), Fabaceae (19), Myrtaceae (17), Cyperaceae (12), Rubiaceae, Solanaceae and Orchidaceae...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Flood gradient; Plant distribution; Plant richness; Riparian forest; Semideciduous forest.
Ano: 2015 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032015000300203
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