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	Provedor de dados 14 (1) 58 (1) 88 (1) 92 (1) Autor Gugliotta,A.M (1) Leal,Inara R. (1) MAGALHAES, F. E. L. (1) Miyashira,C.H (1) Nascimento,Fabio Santos do (1) SILVA, S. E. L. D. (1) Santos,D.Y.A.C (1) Silva,Paulo D. (1) Tabarelli,Marcelo (1) Tanigushi,D.G (1) Valadares,Lohan (1) Wirth,Rainer (1) Mais... Palavra-chave Atta sexdens (4) Leaf-cutting ants (2) Amazonas (1) Ants (1) Armadilha (1) Atlantic forest (1) Atta Laevigata (1) Atta cephalotes (1) Brasil (1) Chemical control (1) Controle Químico (1) Cuticular hydrocarbons (1) Formicida (1) Formicidae (1) Isca (1) Leafcutter ants (1) Leucoagaricus (1) Mutualistic fungus growth (1) Mycelial growth (1) Protium heptaphyllum (1) Mais... Tipo do documento Info:eu-repo/semantics/article (3) Folhetos (1) Ano 2016 (1) 2010 (1) 2007 (1) 1983 (1) País Brazil (4) Idioma Inglês (3) Português (1)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 4 Primeira ... 1 ... Última Comparison of radial growth rate of the mutualistic fungus of Atta sexdens rubropilosa forel in two culture media 58 Miyashira,C.H; Tanigushi,D.G; Gugliotta,A.M; Santos,D.Y.A.C. In vitro culture of the mutualistic fungus of leaf-cutting ants is troublesome due to its low growth rate, which leads to storage problems and contaminants accumulation. This paper aims at comparing the radial growth rate of the mutualistic fungus of Atta sexdens rubropilosa Forel in two different culture media (Pagnocca B and MEA LP). Although total MEA LP radial growth was greater all along the bioassay, no significant difference was detected between growth efficiencies of the two media. Previous evidences of low growth rate for this fungus were confirmed. Since these data cannot point greater efficiency of one culture medium over the other, MEA LP medium is indicated for in vitro studies with this mutualistic fungus due its simpler composition and... Tipo: Info:eu-repo/semantics/article Palavras-chave: Leaf-cutting ants; Mutualistic fungus growth; Mycelial growth; Leucoagaricus; Atta sexdens. Ano: 2010 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822010000200035 Uso de porta-iscas para controle de saúvas em seringais de cultivo. 14 SILVA, S. E. L. D.; MAGALHAES, F. E. L.. O formicida em forma de isca granulada tem sido largarmente utilizado pela sua praticidade, pois dispensa o uso de equipamentos para sua aplicacao e pode ser colocado ao lado dos carreadores, sem necessidade de se localizar o sauveiro. No entanto, a presenca de chuvas e mesmo a alta umidade prejudicam a eficiência desse produto, fator limitante do uso de formicidas em forma de isca. Por isso, foi desenvolvido, no CNPSD, um tipo de porta-iscas, de confeccao simples, baixo custo e de uso aprovado porque, mesmo no periodo chuvoso, nao ha perda de iscas por emboloramento. Tipo: Folhetos Palavras-chave: Brasil; Amazonas; Ants; Armadilha; Atta Laevigata; Controle Químico; Formicida; Isca; Saúva; Atta sexdens; Atta cephalotes; Formicidae; Chemical control. Ano: 1983 URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/665431 Harvesting of Protium heptaphyllum (Aubl.) March. seeds (Burseraceae) by the leaf-cutting ant Atta sexdens L. promotes seed aggregation and seedling mortality 88 Silva,Paulo D.; Leal,Inara R.; Wirth,Rainer; Tabarelli,Marcelo. The role played by leaf-cutting ants as seed dispersers of non-myrmecochorous plants remains poorly understood. Here we document the harvesting of Protium heptaphyllum (Aubl.) March. seeds (Burseraceae) by the leaf-cutting ant Atta sexdens L. and its consequences for (1) seed deposition pattern; (2) seed germination; and (3) seedling mortality. The study was carried out at Dois Irmãos, a 390 ha reserve of Atlantic forest, northeast Brazil. Ant-seed harvesting on the ground was detected in 18.5% of all fruiting trees and ants harvested 41.1% ± 19.7% of the seed crop (mean ± s). In average, ants piled seeds 3.4 ± 2.2 m away from the trunk of parent trees and seed density in these piles reached 128.8 ± 138.8 seeds 0.25 m² during the peak of seed discarding by... Tipo: Info:eu-repo/semantics/article Palavras-chave: Atlantic forest; Atta sexdens; Leaf-cutting ants; Protium heptaphyllum; Seed dispersal. Ano: 2007 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-84042007000300019 Chemical cuticular signature of leafcutter ant Atta sexdens (Hymenoptera, Formicidae) worker subcastes 92 Valadares,Lohan; Nascimento,Fabio Santos do. ABSTRACT In leafcutter ants the division of labour is associated to worker size variation clustered in four subcastes. In this work we used Atta sexdens Forel (1908) as a model to test the hypothesis that each subcaste expresses its own chemical signature comprised of cuticular lipids. To assess it, we extracted epicuticular compounds by using nonpolar solvent hexane and analysed the samples in a combined Gas Chromatography-Mass Spectrometer (GC-MS). We found 24 hydrocarbons with carbon chains ranging from 19 to 39 atoms most of them classified as linear and branched alkanes. No compound occurred in the cuticle of specific worker subcaste, however, the relative proportion pattern varied greatly among them. Our results suggest that although subcastes have... Tipo: Info:eu-repo/semantics/article Palavras-chave: Atta sexdens; Cuticular hydrocarbons; Leafcutter ants; Worker subcaste. Ano: 2016 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0085-56262016000400308 Registros recuperados: 4 Primeira ... 1 ... Última

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