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	Provedor de dados Neotropical Ichthyology (2) Biota Neotropica (1) Autor Correa,Sandra Bibiana (3) Armbruster,Jonathan W. (1) Betancur-R.,Ricardo (1) Cárdenas,Dairon (1) Mérona,Bernard de (1) Winemiller,Kirk (1) Mais... Palavra-chave Apaporis River (1) Community ecology (1) Exotic fish (1) Food web (1) Fruit-eating fish (1) Fruits (1) Habitat affinity (1) Igapó (1) Mixing model (1) Population abundance (1) Red Belly Pacu (1) Species introduction (1) Stable isotopes (1) Stocking (1) Várzea (1) Mais... Tipo do documento Info:eu-repo/semantics/article (3) Ano 2016 (1) 2014 (1) 2008 (1) País Brazil (3) Idioma Inglês (3)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 3 Primeira ... 1 ... Última Isotopic variation among Amazonian floodplain woody plants and implications for food-web research Biota Neotropica Correa,Sandra Bibiana; Winemiller,Kirk; Cárdenas,Dairon. Isotopic variation within food sources adds uncertainty to models intended to reconstruct trophic pathways. Understanding this variation is pivotal for planning sampling protocols for food-web research. This study investigates natural variation in C and N stable isotopes among plant species in two western Amazon flooded forests with contrasting watershed biogeochemistry (white-water várzea-forest and black-water igapó-forest). Our objectives were to compare δ13C and δ15N of leaves and fruits between sites; assess the magnitude of within-site variation in δ13C and δ15N of leaves (várzea: 28 spp., igapó: 10 spp.) and fruits (várzea: 22 spp., igapó: 22 spp.); determine within-plant variation in δ13C and δ15N of leaf, wood and fruit tissues; and test whether... Tipo: Info:eu-repo/semantics/article Palavras-chave: Stable isotopes; Igapó; Várzea; Fruits; Food web; Mixing model. Ano: 2016 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032016000200207 Diet shift of Red Belly Pacu Piaractus brachypomus (Cuvier, 1818) (Characiformes: Serrasalmidae), a Neotropical fish, in the Sepik-Ramu River Basin, Papua New Guinea Neotropical Ichthyology Correa,Sandra Bibiana; Betancur-R.,Ricardo; Mérona,Bernard de; Armbruster,Jonathan W.. Introduction of fish species is a globally widespread practice that causes losses of native species and homogenization of diversity within and across continents. Diet assessments are important tools to depict the ecological function of species introduced into novel ecosystem and possible direct and indirect ecological effects. In this study, we compare the diet of Piaractus brachypomus, a mainly frugivorous Neotropical fish, introduced into the Sepik-Ramu River Basin (Papua New Guinea) nearly two decades ago, to that of similar size individuals from Neotropical populations in the Amazon and Orinoco River basins (South America). In contrast to native populations that feed mainly on terrestrial plants and invertebrates, the diet of introduced P. brachypomus... Tipo: Info:eu-repo/semantics/article Palavras-chave: Exotic fish; Fruit-eating fish; Species introduction; Red Belly Pacu; Stocking. Ano: 2014 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252014000400827 Fish assemblage structure is consistent through an annual hydrological cycle in habitats of a floodplain-lake in the Colombian Amazon Neotropical Ichthyology Correa,Sandra Bibiana. I investigated changes in abundance and spatial distribution of medium- and large-sized fishes (>100 mm) in an oxbow lake of the lower Apaporis River, Colombian Amazon, across three seasons (falling, low, and rising water). Fifty-three species in 13 families were collected from six habitats: lagoon channels, stream, flooded forests, isolated shrub patches, muddy beaches, and rocks. Abundance, biomass, and species richness were higher during the rising-water season and lower during falling-water season. Correspondence analysis (CA) showed that fish assemblages were associated to two basic habitat types. One assemblage of fishes was associated with densely vegetated and structurally complex habitats (flooded forest, lagoon channels, stream, and isolated... Tipo: Info:eu-repo/semantics/article Palavras-chave: Community ecology; Population abundance; Apaporis River; Habitat affinity. Ano: 2008 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252008000200014 Registros recuperados: 3 Primeira ... 1 ... Última

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