Home Itens selecionados Provedores de dados OAI Créditos Sobre Ajuda

			Busca avançada
	Provedor de dados Neotropical Ichthyology (2) Autor Lima,Jane Dilvana (2) Barbosa,Hugo de Oliveira (1) Melo,Cesar Enrique de (1) Nabout,João Carlos (1) Silva,Dianne Michelle Alves da (1) Silva,Eliete Francisca da (1) Souza,Luzia Shirlei de (1) Teresa,Fabrício Barreto (1) Mais... Palavra-chave Araguaia (1) Central Brazil (1) Cerrado (1) Conservation (1) Environmental filters (1) Fish ecology (1) Mass effect (1) Mesohabitat (1) Metacommunity (1) Trophic composition (1) Mais... Tipo do documento Info:eu-repo/semantics/article (2) Ano 2016 (1) 2009 (1) País Brazil (2) Idioma Inglês (2)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 2 Primeira ... 1 ... Última Relationships between water transparency and abundance of Cynodontidae species in the Bananal floodplain, Mato Grosso, Brazil Neotropical Ichthyology Melo,Cesar Enrique de; Lima,Jane Dilvana; Silva,Eliete Francisca da. The Cerrado in the Central Brazil is currently one of the most threatened ecosystems in the world. As a result, the aquatic habitats in this biome also undergo great impacts. Alterations related to land-use change increase sediment loadings in rivers, streams and lakes, resulting in sedimentation and decrease in water transparency. Water transparency determines underwater visibility conditions, and as a consequence fish assemblages respond to spatial and temporal changes in this variable. This work aimed to examine the influence of transparency on the abundance and distribution of Cynodontidae species, a visually oriented predatory fish group. Fish sampling was conducted in 15 sites located between Mortes and Araguaia rivers in the Bananal floodplain, Mato... Tipo: Info:eu-repo/semantics/article Palavras-chave: Fish ecology; Cerrado; Central Brazil; Conservation; Araguaia. Ano: 2009 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252009000200017 Environmental constraints structuring fish assemblages in riffles: evidences from a tropical stream Neotropical Ichthyology Teresa,Fabrício Barreto; Souza,Luzia Shirlei de; Silva,Dianne Michelle Alves da; Barbosa,Hugo de Oliveira; Lima,Jane Dilvana; Nabout,João Carlos. ABSTRACT Riffles are unique habitats regarding to assemblage structure. However, understanding how these assemblages respond to environmental variations in small spatial extents, as within a stream, is a challenge. We assess whether the quantitative structure and the trophic composition of fish assemblages vary predictably among stream riffles. We predict that the variation of environmental conditions will explain species abundance and trophic composition, with the latter presenting higher predictive power, since species would be filtered according to their traits (e.g. diet). Moreover, we expect that the low among-riffle dispersal limitation within a stream and the strong habitat filtering would result in lower importance of spatial variables in the... Tipo: Info:eu-repo/semantics/article Palavras-chave: Environmental filters; Mass effect; Mesohabitat; Metacommunity; Trophic composition. Ano: 2016 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252016000300206 Registros recuperados: 2 Primeira ... 1 ... Última

Empresa Brasileira de Pesquisa Agropecuária - Embrapa Todos os direitos reservados, conforme Lei n° 9.610 Política de Privacidade Área restrita		Embrapa Parque Estação Biológica - PqEB s/n° Brasília, DF - Brasil - CEP 70770-901 Fone: (61) 3448-4433 - Fax: (61) 3448-4890 / 3448-4891 SAC: https://www.embrapa.br/fale-conosco