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	Provedor de dados Neotropical Entomology (4) Genet. Mol. Biol. (2) Rev. Bras. entomol. (1) Rev. Soc. Entomol. Argent. (1) Autor Hartfelder,Klaus (2) Noll,Fernando B. (2) Anderson,Christopher B. (1) Bichara Filho,CC (1) Bichara-Filho,Carlos C. (1) Brugger,Mariana (1) Camargo,Roberto da Silva (1) Cruz,J D (1) Cruz,Jucelho D. da (1) Desuó,IC (1) Dias,CTS (1) Forti,Luiz Carlos (1) Gelin,Luiz F.F. (1) Giannotti,Edilberto (1) Gomes,Bruno (1) J. Valenzuela,Alejandro E. (1) Lencinas,María V. (1) Lopes,Juliane Floriano Santos (1) Martínez Pastur,Guillermo (1) Mateus,Sidnei (1) Mais... Palavra-chave Social insect (8) Epiponini (3) Acromyrmex subterraneus (1) Apis mellifera (1) Biological invasions (1) Bionomics (1) Caste development (1) Caste difference (1) Caste differentiation (1) Digging behavior (1) Exotic species (1) Imaginal disc (1) Insect metamorphosis (1) Insecta (1) Leaf-cutting ants (1) Melipona quadrifasciata (1) Morphological difference (1) Morphometric analysis (1) Morphometry (1) Nest building (1) Mais... Tipo do documento Info:eu-repo/semantics/article (7) Info:eu-repo/semantics/report (1) Ano 2017 (1) 2015 (2) 2011 (1) 2009 (1) 2008 (1) 2007 (1) 2005 (1) Mais... País Brazil (7) Argentina (1) Idioma Inglês (7) Espanhol (1)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 8 Primeira ... 1 ... Última Insights into the dynamics of hind leg development in honey bee (Apis mellifera L.) queen and worker larvae - A morphology/differential gene expression analysis Genet. Mol. Biol. Santos,Carolina Gonçalves; Hartfelder,Klaus. Phenotypic plasticity is a hallmark of the caste systems of social insects, expressed in their life history and morphological traits. These are best studied in bees. In their co-evolution with angiosperm plants, the females of corbiculate bees have acquired a specialized structure on their hind legs for collecting pollen. In the highly eusocial bees (Apini and Meliponini), this structure is however only present in workers and absent in queens. By means of histological sections and cell proliferation analysis we followed the developmental dynamics of the hind legs of queens and workers in the fourth and fifth larval instars. In parallel, we generated subtractive cDNA libraries for hind leg discs of queen and worker larvae by means of a Representational... Tipo: Info:eu-repo/semantics/article Palavras-chave: Social insect; Caste development; Imaginal disc; Insect metamorphosis; Transcript analysis. Ano: 2015 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572015000300263 Sequence and expression pattern of the germ line marker vasa in honey bees and stingless bees Genet. Mol. Biol. Tanaka,Érica Donato; Hartfelder,Klaus. Queens and workers of social insects differ in the rates of egg laying. Using genomic information we determined the sequence of vasa, a highly conserved gene specific to the germ line of metazoans, for the honey bee and four stingless bees. The vasa sequence of social bees differed from that of other insects in two motifs. By RT-PCR we confirmed the germ line specificity of Amvasa expression in honey bees. In situ hybridization on ovarioles showed that Amvasa is expressed throughout the germarium, except for the transition zone beneath the terminal filament. A diffuse vasa signal was also seen in terminal filaments suggesting the presence of germ line cells. Oocytes showed elevated levels of Amvasa transcripts in the lower germarium and after follicles... Tipo: Info:eu-repo/semantics/article Palavras-chave: Apis mellifera; Melipona quadrifasciata; Vasa; Social insect; Oogenesis. Ano: 2009 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572009000300023 Morphological caste studies in the neotropical swarm-founding Polistinae wasp Angiopolybia pallens (Lepeletier) (Hymenoptera: Vespidae) Neotropical Entomology Gelin,Luiz F.F.; Cruz,Jucelho D. da; Noll,Fernando B.; Giannotti,Edilberto; Santos,Gilberto M. de M.; Bichara-Filho,Carlos C.. Neotropical swarm-founding wasps present polygynic colonies and a great variation in relation to caste differentiation, ranging from species in which queens and workers are similar in shape and size to those where variation in shape and size is conspicuous. Canonical discriminant analysis and Bonferroni t-test analysis on morphometric data collected from eight body parts of specimens from nine colonies of Angiopolybia pallens (Lepeletier) were undertaken as a step towards to a better understanding on caste differenciation in Epiponini. All specimens were dissected to verify the ovary developmental stage, and the spermatheca was removed to check for the mating status. Females were then grouped as queens (mated with developed ovaries), intermediates (virgin... Tipo: Info:eu-repo/semantics/article Palavras-chave: Social insect; Morphometry; Epiponini; Caste differentiation. Ano: 2008 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1519-566X2008000600011 Foraging patterns in a nocturnal swarm-founding wasp, Apoica flavissima van der Vecht (Hymenoptera: Vespidae) Neotropical Entomology Nascimento,Fabio S.; Tannure-Nascimento,Ivelize C.. Foraging behaviour has a remarkable significance to colonies of social insects since it is directly related to the supply of food, water, and pulp. Social wasps of the genus Apoica Lepeletier are primarily nocturnal, but studies concerning the general aspects related to this habit are still scarce. This study showed that the rates of foraging flights were higher during the full moon and last quarter moon phases. Frequencies of arrival and departure were correlated with time and temperature at night. The results suggest that the moonlight is an important component to general activities in this genus. Tipo: Info:eu-repo/semantics/article Palavras-chave: Insecta; Polistinae; Social insect; Epiponini; Bionomics. Ano: 2005 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1519-566X2005000200005 An adaptive view of caste differentiation in the neotropical wasp Polybia (Trichothorax) sericea Olivier (Hymenoptera: Vespidae) Neotropical Entomology Desuó,IC; Souza-Galheico,CB; Shima,SN; Santos,GMM; Cruz,J D; Bichara Filho,CC; Dias,CTS. The tribe Epiponini comprehends the swarm-founding Neotropical wasps, with several species endemic to Brazil, which are extremely important in studies of social evolution of wasps. The Epiponini diverge in several ways from the definitions of high eusociality, since caste syndromes range from species without morphological caste differentiation to those with complete caste dimorphism, and all species are polygynous. Frequently, indirect studies based on morphometry and physiology are the only solutions to collect data regarding the natural history and caste system in this tribe, since most species are extremely aggressive and build enveloped nests, usually in places of difficult access. We analyzed morphological parameters in seven colonies of the Epiponini... Tipo: Info:eu-repo/semantics/article Palavras-chave: Social insect; Morphological difference; Epiponini. Ano: 2011 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1519-566X2011000600004 Castes and asynchronous colony cycle in Polybia bistriata (Fabricius) (Hymenoptera: Vespidae) Neotropical Entomology Oliveira,Otavio A.L. de; Noll,Fernando B.; Mateus,Sidnei; Gomes,Bruno. Neotropical swarm-founding wasps, the Epiponini, are an outstanding group of social insects whose societies are polygynic and complex nest builders. Caste dimorphism in these wasps ranges from incipient to highly distinct. Morphometric analyses of nine body parts, ovarian status, relative age and development of the 5th gastral sternite gland (Richards´ gland) of Polybia bistriata Fabricius were undertaken in order to estimate caste differentiation in nine colonies. Morphological and physiological data were used in multivariate analyses in order to evaluate the level of discrimination between inseminated and non-inseminated females. Clear physiological differences were found: queens had highly developed ovaries and they were inseminated, and workers had... Tipo: Info:eu-repo/semantics/article Palavras-chave: Social insect; Caste difference; Social wasp; Morphometric analysis. Ano: 2007 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1519-566X2007000600001 Effect of the presence of brood and fungus on the nest architecture and digging activity of Acromyrmex subterraneus Forel (Hymenoptera, Formicidae) Rev. Bras. entomol. Santos,Carlos Magno dos; Camargo,Roberto da Silva; Brugger,Mariana; Forti,Luiz Carlos; Lopes,Juliane Floriano Santos. ABSTRACT This study investigated the stimuli that trigger digging behavior in Acromyrmex subterraneus during nest building. The hypothesis was that the presence of the fungus garden and/or brood triggers the excavation of tunnels and chambers. For the experiment, the excavation rate of individually marked workers kept in plastic cylinders filled with soil was recorded. Four treatments were applied: (1) 30 medium-sized workers, 5 g fungus garden and 30 brood items (larvae and pupae); (2) 30 medium-sized workers and 5 g fungus garden; (3) 30 medium-sized workers and 30 brood items; (4) 30 medium-sized workers without fungus and brood. After 24 h, morphological parameters of nest structure (length and width of the chambers and tunnels in cm) and the volume of... Tipo: Info:eu-repo/semantics/article Palavras-chave: Acromyrmex subterraneus; Digging behavior; Leaf-cutting ants; Nest building; Social insect. Ano: 2017 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0085-56262017000100080 Reciente invasión del Archipiélago de Tierra del Fuego por la avispa Vespula germanica (Hymenoptera: Vespidae) Rev. Soc. Entomol. Argent. Sola,Francisco J.; J. Valenzuela,Alejandro E.; Anderson,Christopher B.; Martínez Pastur,Guillermo; Lencinas,María V.. Vespula germanica es una especie invasora de nivel mundial que ha sido detectada en la Patagonia continental de la Argentina y Chile. En este trabajo, ampliamos el rango de distribución de este véspido de la Patagonia, al Archipiélago de Tierra del Fuego. Indicamos ubicación, año y ambiente de cada avistamiento y/o captura. El patrón de expansión indicaría que esta especie está bien establecida tanto en áreas naturales como antrópicas, y probablemente ha dependido del transporte humano para llegar desde el continente. Esta comunicación breve sirve también para tomar medidas prácticas de mitigación y control de esta especie, incluyendo información básica para que la ciudadanía tome conciencia sobre su presencia y esto ayude a evitar su transporte a nuevos... Tipo: Info:eu-repo/semantics/report Palavras-chave: Biological invasions; Exotic species; Patagonia; Social insect; Yellow-jacket. Ano: 2015 URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S0373-56802015000200012 Registros recuperados: 8 Primeira ... 1 ... Última

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