Home Itens selecionados Provedores de dados OAI Créditos Sobre Ajuda

			Busca avançada
	Provedor de dados Biota Neotropica (1) Genet. Mol. Biol. (1) Iheringia, Sér. Zool. (1) Autor Madi-Ravazzi,Lilian (3) Azeredo-Oliveira,Maria Tercília Vilela de (1) Bicudo,Hermione Elly Melara de Campos (1) Penariol,Leiza (1) Rego,Letícia do Nascimento Andrade de Almeida (1) Silistino-Souza,Rosana (1) Torres,Felipe Rafael (1) Mais... Palavra-chave Biodiversity (2) Seasonality (2) Abiotic factors (1) Brazil (1) Capture traps (1) Cytochemistry (1) Drosophila (1) Drosophilid (1) Meiosis (1) Spermatogenesis (1) Ultrastructure (1) Zaprionus indianus (1) Zaprionus sepsoides (1) Mais... Tipo do documento Info:eu-repo/semantics/article (3) Ano 2013 (1) 2008 (1) 2006 (1) País Brazil (3) Idioma Inglês (3)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 3 Primeira ... 1 ... Última Spermatogenesis of Zaprionus indianus and Zaprionus sepsoides (Diptera, Drosophilidae): cytochemical, structural and ultrastructural characterization Genet. Mol. Biol. Rego,Letícia do Nascimento Andrade de Almeida; Silistino-Souza,Rosana; Azeredo-Oliveira,Maria Tercília Vilela de; Madi-Ravazzi,Lilian. Zaprionus indianus is a drosophilid native to the Afrotropical region that has colonized South America and exhibits a wide geographical distribution. In contrast, Z. sepsoides is restricted to certain African regions. The two species differ in the size of their testes, which are larger in Z. indianus than in Z. sepsoides. To better understand the biology and the degree of differentiation of these species, the current study evaluated spermatogenesis in males of different ages by conventional staining techniques and ultrastructural analysis. Spermatogenesis and the ultrastructure of spermatozoa were similar in the two species, and the diploid number was confirmed to be 2n = 12. A greater number of spermatozoa were observed in young Z. indianus (1-3 days old)... Tipo: Info:eu-repo/semantics/article Palavras-chave: Zaprionus indianus; Zaprionus sepsoides; Spermatogenesis; Cytochemistry; Ultrastructure; Meiosis. Ano: 2013 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572013000100008 Seasonal variation in natural populations of Drosophila spp. (Diptera) in two woodlands in the State of São Paulo, Brazil Iheringia, Sér. Zool. Torres,Felipe Rafael; Madi-Ravazzi,Lilian. The composition and the seasonality of the natural populations of Drosophila species in relation to the climatic variables temperature and rainfall were analyzed from September 1998 through October 1999 by monthly collections, in two woodlands in the Northwest of the State of São Paulo, Brazil. The diversity dominance component curves were inclined, reflecting low diversity and high dominance of few species. Among the 25 species recorded, Drosophila sturtevanti Duda, 1927 was the most frequent and abundant. On the opposite to data in literature, D. paranaensis Barros, 1950 abundance and frequency were greater than those from D. mercatorum Patterson & Wheeler, 1942. A positive correlation between abundance and rainfall was observed for D. nebulosa... Tipo: Info:eu-repo/semantics/article Palavras-chave: Brazil; Abiotic factors; Seasonality; Drosophila; Biodiversity. Ano: 2006 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0073-47212006000400008 On the use of open or closed traps in the capture of drosophilids Biota Neotropica Penariol,Leiza; Bicudo,Hermione Elly Melara de Campos; Madi-Ravazzi,Lilian. The use of open or closed traps in order to standardize the drosophilid collection is still a matter of discussion among researchers. In this paper, comparative data of drosophilid collections, using open and closed traps are presented. The collections were made monthly, during one year, in one fragment of a semidecidual forest located in the São Paulo State, Brazil. The efficiency of the traps was evaluated by the use of community descriptors: population abundance and richness and diversity of species. Closed traps were more efficient than the open ones in relation to the population abundance and the species richness, indicating their adequacy for standardization of drosophilid collection in studies of biodiversity and seasonality. Tipo: Info:eu-repo/semantics/article Palavras-chave: Capture traps; Drosophilid; Biodiversity; Seasonality. Ano: 2008 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032008000200004 Registros recuperados: 3 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