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	Provedor de dados Acta Botanica (1) Ecología austral (1) Rev. Bras. Bot. (1) Autor Necchi Júnior,Orlando (2) Borges,Fábio R. (1) Borges,Fábio Renato (1) Corigliano,María C (1) Gualdoni,Cristina M (1) Oberto,Ana M (1) Príncipe,Romina E (1) Raffaini,Graciela B (1) Mais... Palavra-chave Lotic ecosystem (3) Aquatic macroinvertebrates (1) Benthos (1) Distribution (1) Ecological niche (1) Functional organization (1) Habitat (1) Life strategy (1) Macroalga (1) Macroalgae (1) Succession (1) Tropical region (1) Mais... Tipo do documento Info:eu-repo/semantics/article (3) Ano 2010 (1) 2008 (1) 2006 (1) País Brazil (2) Argentina (1) Idioma Inglês (3)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 3 Primeira ... 1 ... Última Spatial-temporal patterns of functional feeding groups in mountain streams of Córdoba, Argentina Ecología austral Príncipe,Romina E; Gualdoni,Cristina M; Oberto,Ana M; Raffaini,Graciela B; Corigliano,María C. Trophic structure of benthic communities is influenced by the availability of food resources which indeed may be conditioned by stream size, shading and substrate. This study aims to analyze the distribution of macroinvertebrate Functional Feeding Groups in different habitats of mountain streams (Córdoba, Argentina) and to assess the environmental variables conditioning this distribution at the habitat level. Four streams were sampled in two hydrological periods (high and low discharge) and three benthic samples were taken in riffles and runs of coarse and fine substrate. Gathering collectors were dominant in most of the habitats, streams and periods except in riffles during the low water period in which filtering collectors dominated. At the habitat... Tipo: Info:eu-repo/semantics/article Palavras-chave: Aquatic macroinvertebrates; Benthos; Habitat; Functional organization; Lotic ecosystem. Ano: 2010 URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S1667-782X2010000300005 Patterns of spatial distribution in macroalgal communities from tropical lotic ecosystems Rev. Bras. Bot. Borges,Fábio R.; Necchi Júnior,Orlando. Three sampling sites were analysed in each of the following tropical regions: 1) northwestern São Paulo State, representing a disturbed region; 2) Bonito, Mato Grosso do Sul State, representing a hard water region; and 3) Ubatuba, northern costal region of São Paulo State, a well preserved tropical rainforest region. The hard water region had the highest mean values for macroalgal species richness (6.3) and diversity index (H' = 0.62). Northwest and rainforest regions had the highest percent cover values (22.5% and 17.0%, respectively). All sites in the northwest region had one or two dominant species (percent cover significantly higher than the remaining species), characterizing the niche pre-emption distribution pattern. The same pattern was found in two... Tipo: Info:eu-repo/semantics/article Palavras-chave: Distribution; Ecological niche; Lotic ecosystem; Macroalga; Tropical region. Ano: 2006 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-84042006000400016 Short-term successional dynamics of a macroalgal community in a stream from northwestern São Paulo State, Brazil Acta Botanica Borges,Fábio Renato; Necchi Júnior,Orlando. This investigation aimed to describe a short term (70 days) ecological succession event of a macroalgal community in a stream from northwestern São Paulo state (20º43'S; 49º13'W) after artificial disturbance (removal); evaluate if community structure characteristics were similar before and after the experimental period; compare the successional process of two experimental stream segments (partly and completely disturbed segments, PDS and CDS, respectively), simulating medium (partial) and high impact (complete removal) disturbances. In terms of colonization time, Oedogonium sp. was classified as successionally indifferent, whereas Chaetophora elegans (Roth) C. Agarth and Batrachospermum delicatulum (Skuja) Necchi et Entwisle were classified as late... Tipo: Info:eu-repo/semantics/article Palavras-chave: Life strategy; Lotic ecosystem; Macroalgae; Succession. Ano: 2008 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062008000200014 Registros recuperados: 3 Primeira ... 1 ... Última

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