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	Provedor de dados Rev. Bras. Zool. (1) Zoologia (1) Iheringia, Sér. Zool. (1) Pap. Avulsos de Zool. (São Paulo) (1) Autor Agostinho,Angelo Antonio (1) Dias,Rosa Maria (1) Freire,Eliza M. X. (1) Freitas,Rodrigo R. (1) Gomes,Luiz Carlos (1) Lisboa,Carolina M. C. A. (1) Ortega,Jean Carlo Gonçalves (1) Rocha,Pedro L.B. (1) Rocha,Pedro Luís B. da (1) Rodrigues,Miguel T. (1) Sales,Raul F. D. (1) Simões-Lopes,Paulo César (1) Mais... Palavra-chave Electivity (4) Diet (2) Lizards (2) Adaptability (1) Arthropods (1) Caatinga (1) Capture success (1) Dunes (1) Fish feeding (1) Gradient analysis (1) Leaf litter (1) Microhabitat (1) Paraná River (1) Phase of activity (1) Richness (1) Mais... Tipo do documento Info:eu-repo/semantics/article (4) Ano 2017 (1) 2012 (1) 2005 (2) País Brazil (4) Idioma Inglês (4)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 4 Primeira ... 1 ... Última Trophic relationships in fish assemblages of Neotropical floodplain lakes: selectivity and feeding overlap mediated by food availability Iheringia, Sér. Zool. Dias,Rosa Maria; Ortega,Jean Carlo Gonçalves; Gomes,Luiz Carlos; Agostinho,Angelo Antonio. ABSTRACT. The relationships between the degree of dietary overlap and food availability, and implications for food selectivity of fish species were evaluated at floodplain lakes on the upper Paraná River floodplain, Brazil. The hypothesis tested were: i) species become less selective in lakes with high availability of food resources; and ii) species (interspecific) or individual (intraspecific) present higher food overlap in conditions of high availability of food resources. In general, with the results was observed that species become less selective when the environment provided higher availability of food resources. Interspecific overlap did not show a pattern when evaluating availability of food resources in the lakes. However, intraspecific overlap... Tipo: Info:eu-repo/semantics/article Palavras-chave: Fish feeding; Electivity; Paraná River. Ano: 2017 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0073-47212017000100292 Electivities and resource use by an assemblage of lizards endemic to the dunes of the São Francisco River, northeastern Brazil Pap. Avulsos de Zool. (São Paulo) Rocha,Pedro L.B.; Rodrigues,Miguel T.. This study describes the pattern of resource use by one assemblage of lizards inhabiting a desert-like dune field in the Brazilian Caatinga. We evaluated food and microhabitat availability and phases of lizard activity, as well as use of, and electivities for, food and microhabitats. Six of the seven most abundant species are endemic to the dunes, and their diets under-represented arthropods possessing chemical defenses. The two fossorial gymnophthalmids were similar in presenting no electivities for microhabitat but differed in diet, electivities for food and phase of activity. The five species of epigeous lizards include one group presenting positive electivities for protected and shaded microhabitats (Procellosaurinus erythrocercus, Briba brasiliana,... Tipo: Info:eu-repo/semantics/article Palavras-chave: Caatinga; Diet; Dunes; Electivity; Microhabitat; Phase of activity; Lizards. Ano: 2005 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0031-10492005002200001 Feeding ecology of the pygmy gecko Coleodactylus natalensis (Squamata: Sphaerodactylidae) in the Brazilian Atlantic Forest Rev. Bras. Zool. Lisboa,Carolina M. C. A.; Sales,Raul F. D.; Freire,Eliza M. X.. We studied the feeding ecology of a population of Coleodactylus natalensis Freire, 1999, an endemic gecko of Atlantic Forest fragments in the state of Rio Grande do Norte, northeastern Brazil. Lizards (N = 49) were collected manually through active search in the four habitats of Parque Estadual Dunas de Natal, type locality of the species. In the laboratory, we measured the lizards and registered the number of consumed prey items identified to Order, its dimensions and frequencies. We also collected samples of leaf litter in each habitat to determine prey availability. Females were significantly larger than males, but head size did not differ between the sexes. The most important prey categories in the diet of C. natalensis based on number, volume and... Tipo: Info:eu-repo/semantics/article Palavras-chave: Arthropods; Diet; Electivity; Leaf litter; Lizards. Ano: 2012 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-46702012000400002 Habitat structure and small mammals abundances in one semiarid landscape in the Brazilian Caatinga Zoologia Freitas,Rodrigo R.; Rocha,Pedro Luís B. da; Simões-Lopes,Paulo César. Studies conducted under a major project sponsored by the Brazilian Academy of Sciences in the 1970's concluded that the small mammal fauna of the semiarid Caatinga region of Brazil is impoverished and highly restricted to mesic granite outcroppings due to the lack of water conserving physiological capabilities in its species. This work focuses the abundance of small mammals in five typical Caatinga habitats. Indirect gradient analysis shows that three theoretical environmental variables explain most of the variance present in the community abundance matrix. Direct analysis of gradients show that none of these variables is highly correlated to availability of granite outcroppings. Our data also suggest that the abundances in Caatinga are not particularly... Tipo: Info:eu-repo/semantics/article Palavras-chave: Adaptability; Capture success; Electivity; Gradient analysis; Richness. Ano: 2005 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81752005000100015 Registros recuperados: 4 Primeira ... 1 ... Última

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