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	Provedor de dados Anais da ABC (AABC) (3) Autor Barth,Ortrud M. (3) Silva,Cleverson G. (3) Luz,Cynthia F.P. da (2) Barros,Marcia A. (1) Martin,Louis (1) Toledo,Mauro B. de (1) Turcq,Bruno J. (1) Mais... Palavra-chave Palynology (2) Algae deposition (1) Brazil (1) Campos dos Goitacazes municipality (1) Campos dos Goytacazes (1) Holocene (1) Lagoa Salgada (1) Multivariate analysis (1) Paleoenvironmental reconstruction (1) Pollen deposition (1) Quaternary palynology (1) Vegetation dynamics (1) Mais... Tipo do documento Info:eu-repo/semantics/article (3) Ano 2011 (1) 2010 (1) 2009 (1) País Brazil (3) Idioma Inglês (3)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 3 Primeira ... 1 ... Última Testing multivariate analysis in paleoenvironmental reconstructions using pollen records from Lagoa Salgada, NE Rio de Janeiro State, Brazil Anais da ABC (AABC) Toledo,Mauro B. de; Barth,Ortrud M.; Silva,Cleverson G.; Barros,Marcia A.. Despite the indisputable significance of identification of modern analogs for Paleoecology research, relatively few studies attempted to integrate modern and fossil samples on paleoenvironmental reconstructions. In Palynology, this general pattern is not different from other fields of Paleoecology. This study demonstrates the practical application of modern pollen deposition data on paleoenvironmental reconstructions based on fossil pollen by using multivariate analysis. The main goal of this study was to use Detrended Correspondence Analysis (DCA) to compare pollen samples from two sediment cores collected at Lagoa Salgada, a coastal lagoon located at northeastern Rio de Janeiro State. Furthermore, modern surface samples were also statistically compared... Tipo: Info:eu-repo/semantics/article Palavras-chave: Multivariate analysis; Paleoenvironmental reconstruction; Quaternary palynology; Lagoa Salgada. Ano: 2009 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652009000400013 Modern processes of palynomorph deposition at lakes of the northern region of the Rio de Janeiro State, Brazil Anais da ABC (AABC) Luz,Cynthia F.P. da; Barth,Ortrud M.; Silva,Cleverson G.. Palynological analysis of pollen, Pteridophyta spores and algae deposited in the superficial sediments at Lagoa de Cima and Lagoa do Campelo Lakes, located in the north of Rio de Janeiro state, was used to determine the spatial variation of the palynomorphs deposition. A total of 67 pollen types were identified at Lagoa de Cima, with an expressive contribution of regional arboreous taxa, hydrophytes and ruderal plants of the pastureland. The depositional pattern of palynomorphs depends on the fluvial leakage, the proximity of the local sedimentation to the inlet of the Imbé and Urubu Rivers and the bathymetry of lake bottom. The highest concentrations of palynomorphs were observed in the decentralized and less deeper area, without the interference of the... Tipo: Info:eu-repo/semantics/article Palavras-chave: Algae deposition; Campos dos Goitacazes municipality; Palynology; Pollen deposition. Ano: 2010 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652010000300016 Palynological evidence of the replacement of the hygrophilous forest by field vegetation during the last 7,000 years B.P. in the northern coast of Rio de Janeiro, Brazil Anais da ABC (AABC) Luz,Cynthia F.P. da; Barth,Ortrud M.; Martin,Louis; Silva,Cleverson G.; Turcq,Bruno J.. Historians claim that European colonizers of the northern coast of Rio de Janeiro State found vast herbaceous fields when arrived in this region. Hypotheses about the origin of these fields include forest burning by the Goitacás indians and periodical floods by the Paraíba do Sul River and the lagoon system. The palynologycal analysis of two lake cores obtained in the municipality of Campos dos Goytacazes revealed opening episodes of hygrophilous forest and the establishment of field vegetation, recorded at ca. 6,500 and ca. 4,000 14C yr BP. The partial replacement of forest by field vegetation in the first episode was probably caused by floods of the lower areas during the development of the Holocene lagoon phase. During the second episode, successions of... Tipo: Info:eu-repo/semantics/article Palavras-chave: Brazil; Campos dos Goytacazes; Holocene; Palynology; Vegetation dynamics. Ano: 2011 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652011000300013 Registros recuperados: 3 Primeira ... 1 ... Última

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