Home Itens selecionados Provedores de dados OAI Créditos Sobre Ajuda

			Busca avançada
	Provedor de dados Rev. Bras. entomol. (2) Autor Almeida,Nilhian Gonçalves De (1) Camargo,Roberto Da Silva (1) Forti,Luis Carlos (1) Lopes,Juliane Floriano Santos (1) Nascimento,Fabio Santos do (1) Valadares,Lohan (1) Mais... Palavra-chave Leafcutter ants (2) Atta sexdens (1) Cuticular hydrocarbons (1) Memory (1) Synergism (1) Trail pheromone (1) Worker subcaste (1) Mais... Tipo do documento Info:eu-repo/semantics/article (2) Ano 2018 (1) 2016 (1) País Brazil (2) Idioma Inglês (2)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 2 Primeira ... 1 ... Última Chemical cuticular signature of leafcutter ant Atta sexdens (Hymenoptera, Formicidae) worker subcastes Rev. Bras. entomol. 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 Hierarchical establishment of information sources during foraging decision-making process involving Acromyrmex subterraneus (Forel, 1893) (Hymenoptera, Formicidae) Rev. Bras. entomol. Almeida,Nilhian Gonçalves De; Camargo,Roberto Da Silva; Forti,Luis Carlos; Lopes,Juliane Floriano Santos. ABSTRACT During foraging, worker ants are known for making use of many information sources to guide themselves in external environments, especially individual (memory) and social (trail pheromone) information. Both kinds of information act in a synergic way, keeping the foraging process efficient and organized. However, when social and individual information is conflicting face a trail bifurcation, it is necessary to establish a hierarchical order so prioritizing one of them. This study aims to verify which information (social or individual) is prioritized by Acromyrmex subterraneus workers when facing a bifurcation in a Y-trail system. Only one branch of the Y-trail leads to food resource and it had a section covered by filter paper where trail pheromone... Tipo: Info:eu-repo/semantics/article Palavras-chave: Leafcutter ants; Trail pheromone; Memory; Synergism. Ano: 2018 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0085-56262018000100036 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