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| Registros recuperados: 107 | |
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| Boaventura,Maria Gabriela; Pereira,Cássio Cardoso; Cornelissen,Tatiana. |
| ABSTRACT Sessile and host-specific herbivores, such as gall-inducing insects, are usually patchily distributed within the populations of their host plants, and it has been suggested that both inter- and intra-plant variation affect gall abundance, distribution and survivorship. Variation in plant traits, such as size and architecture, has been previously demonstrated as a determinant of gall distribution. We examined the influence of architectural complexity of the tropical plant Galianthe brasiliensis (Rubiaceae) on the abundance of the stem-galler Lopesia sp. (Diptera, Cecidomyiidae) along an elevation gradient where both insect and plant were distributed. A total of 120 plants were sampled along the gradient and more than 580 galls were counted, while... |
| Tipo: Info:eu-repo/semantics/other |
Palavras-chave: Elevation gradient; Galls; Insects; Plant architecture hypothesis; Plant quality. |
| Ano: 2018 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062018000400670 |
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| DELLAPÉ,GIMENA; COLPO,KARINE D.; MELO,MARÍA C.; MONTEMAYOR,SARA I.; DELLAPÉ,PABLO M.. |
| ABSTRACT Although the majority of threatened species are likely to be tropical insects, knowledge of the diversity, ecological role and impact of insect biodiversity loss on ecosystem processes is very limited. Specimens belonging to four families of Heteroptera: Pentatomidae, Coreidae, Alydidae and Rhopalidae, were collected from a protected area in the Paraná Forest, the largest ecoregion of the Atlantic Forest, in Argentina. The assemblages were characterized and the biodiversity estimated, and they were compared with the assemblages found in five other protected areas in the Brazilian Atlantic Forest. In our study area, Pentatomidae had the greatest richness and diversity; Coreidae was the second most diverse family, with highest sampling deficit,... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Hemiptera; Insects; Conservation; Diversity; Paraná Forest; South American Atlantic Forest.. |
| Ano: 2018 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652018000100109 |
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| NESPOLO,ROBERTO F; CASTAÑEDA,LUIS E; ROFF,DEREK A. |
| Compared with morphological and life history traits, quantitative genetic variation of metabolic and related traits in animals has been poorly studied. We used flow-through VC0(2) respirometry and simultaneous activity measurement on nymphs of the sand cricket {Gryllus firmus) from inbred lines to estimate broad-sense heritability of four metabolic variables. In addition, we measured a number of linear dimensions in the adults from the same inbred lines. There were significant multivariate effects of inbred lines for all traits and broad-sense heritability for physiological traits was 4.5%, 5.2%, 10.3% and 8.5% for average, resting, minimum and maximum C0(2) production in nymphs, respectively. Though the MANOVA indicated significant genetic variation among... |
| Tipo: Journal article |
Palavras-chave: Broad-sense heritability; Metabolic rate; Insects; Inbred lines; Through-flow C0(2) respirometry. |
| Ano: 2007 |
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0716-97602007000100001 |
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| Pinto,Hudson Alves; Melo,Alan Lane de. |
| During studies on the participation of larval Odonata in the life cycle of trematodes carried out at the Pampulha reservoir, Belo Horizonte, State of Minas Gerais, Brazil, between May and September 2011, dragonfly larvae, Orthemis discolor (Burmeister, 1839) and Perithemis mooma Kirby, 1889, were found harboring metacercariae identified as Eumegacetes medioximusBraun, 1901. This is the first report and morphological description of metacercariae of E. medioximus in the Neotropical region. |
| Tipo: Info:eu-repo/semantics/other |
Palavras-chave: Trematodes; Insects; Dragonfly; Parasites. |
| Ano: 2013 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032013000200351 |
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| Malerbo-Souza,Darclet Teresinha; Nogueira-Couto,Regina Helena. |
| The objective of this study was to test repellent substances for honey bees, Apis mellifera, for basil, Ocimum sellowii, and to study the most frequent insects in this crop as well as its behaviors. The frequency of honey bees did not decrease with the application of n.octyl.acetate, citronellal and 2.heptanone, used as repellents, in the concentrations 2.5, 5.0, 7.5 and 10.0% diluted in water. However, when the products (20%) were diluted in water (75%) and glycerine (5%) were effective in repelling those bees of the basil flowers for a period of 20 minutes. The flower lasted, on average, 30 h from the bud phase until the flower withered. The flowers number opened by inflorescence was, on average, 5.65 flowers, and the inflorescence presented, on average,... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Repellent; Apis mellifera; Basil; Ocimum sellowii; Pollination; Insects. |
| Ano: 2004 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132004000100016 |
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| Oliveira,Pollianna S.; Souza,Simone G.; Campos,Guilherme B.; Silva,Danilo C.C. da; Sousa,Daniel S.; Araújo,Suerda P.F.; Ferreira,Laiziane P.; Santos,Verena M.; Amorim,Aline T.; Santos,Angelita M.O.G.; Timenetsky,Jorge; Cruz,Mariluze P.; Yatsuda,Regiane; Marques,Lucas M.. |
| Currently, hospital infection is a serious public health problem, and several factors may influence the occurrence of these infections, including the presence of insects, which are carriers of multidrug-resistant bacterial species. The aim of this study was to isolate staphylococci carried by insects in two public hospitals of Vitoria da Conquista, Bahia and to identify the resistance profile, pathogenicity and efficacy of disinfection of the premises. A total of 91 insects were collected in 21 strategic points of these hospitals, and 32 isolated strains ofStaphylococcus aureus were isolated. Based on antibiogram and Minimum Inhibitory Concentration results, 95% of these strains were susceptible to oxacillin. These strains were also evaluated for the... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Insects; Staphylococcus aureus; Resistance; Virulence factors; Disinfection. |
| Ano: 2014 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-86702014000200129 |
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| Pinto,Laura M.N.; Dörr,Natália C.; Ribeiro,Ana Paula A.; Salles,Silvia M. de; Oliveira,Jaime V. de; Menezes,Valmir G.; Fiuza,Lidia M.. |
| The screening of Bacillus thuringiensis (Bt) Cry proteins with high potential to control insect pests has been the goal of numerous research groups. In this study, we evaluated six monogenic Bt strains (Bt dendrolimus HD-37, Bt kurstaki HD-1, Bt kurstaki HD-73, Bt thuringiensis 4412, Bt kurstaki NRD-12 and Bt entomocidus 60.5, which codify the cry1Aa, cry1Ab, cry1Ac, cry1Ba, cry1C, cry2A genes respectively) as potential insecticides for the most important insect pests of irrigated rice: Spodoptera frugiperda, Diatraea saccharalis, Oryzophagus oryzae, Oebalus poecilus and Tibraca limbativentris. We also analyzed their compatibility with chemical insecticides (thiamethoxam, labdacyhalothrin, malathion and fipronil), which are extensively used in rice crops.... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Bacillus thuringiensis; Cry proteins; Insects. |
| Ano: 2012 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822012000200025 |
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| Leite,Germano L.D; Picanço,Marcelo; Zanuncio,José C; Moreira,Márcio D; Jham,Gulab N. |
| Factors such as fertilization, allelochemicals, trichomes, weather, and natural enemies can influence pest populations. Thus, it is necessary to understand the factors that predispose vegetable species to pests and the role of polyculture, crop rotation, and neighboring plants. The objective of this research was to study the hosting capacity for pests of Abelmoschus esculentus (L.), Brassica oleracea L. vars. acephala and capitata, Capsicum annuum L., Cucurbita moschata (Duchesne), Cucurbita maxima Duchesne and Cucumis sativus L., Lycopersicon esculentum Mill., Solanum gilo Raddi and Solanum melongena L., and Phaseolus vulgaris L. The higher density of Bemisia tabaci (Genn.) adults on C. sativus can be due to the higher amount of pentacosane and octacosane... |
| Tipo: Journal article |
Palavras-chave: Trichomes; Allelochemicals; Nitrogen; Potassium; Insects. |
| Ano: 2011 |
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-58392011000300006 |
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| Bolico, Cristiane Ferras; Oliveira, Eduardo Alves; Gantes, Marcel Lucas; Dumont, Luiz Felipe Cestari; Carrasco, Daiane Silveira; D´Incao, Fernando. |
| O trabalho objetiva inventariar a mirmecofauna de duas marismas distintas e estimar a diversidade, similaridade, bem como relacionar a temperatura, umidade relativa do ar e a pluviosidade aos padrões de flutuação de abundância desses insetos. Além disso, foram reconhecidas as espécies que atuam como indicadores ambientais. O estudo foi realizado em duas marismas localizadas no Estuário da Laguna Lagoa dos Patos, Ilha da Torotama e Molhe Oeste da Barra. Foram capturados 853 formicídeos, distribuídos em 19 gêneros. As duas marismas apresentaram índices de diversidade e abundância semelhantes, Ds = 0,958 e I = 0,042 na Ilha da Torotama e Ds = 0,8889 e I = 0,111 no Molhe Oeste da Barra. As flutuações dos grupos de formicídeos coincidiram em ambas as áreas,... |
| Tipo: Article |
Palavras-chave: Bioindicador; Ecossistema Costeiro; Formigas; Insetos; Ants; Malaise; Bioindicator; Coastal Ecosystem; Insects. |
| Ano: 2012 |
URL: http://hdl.handle.net/2315/246 |
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| Cruz Labana, José Domingo. |
| En las zonas rurales de México, la hormiga "escamolera" (Liometopum apiculatum) es socioeconómicamente importante porque sus larvas, conocidas como "escamoles" se extraen de los hormigueros y son vendidos para el consumo humano. Sin embargo, la hormiga escamolera está siendo explotada de manera no sostenible y no existen estudios sobre el uso del hábitat por esta especie en el centro de México. Para identificar el uso del hábitat por la hormiga escamolera, durante la primavera-verano de 2012, se evaluaron catorce variables del hábitat en parcelas circulares de 20 m de diámetro, de 54 nidos de hormigas y de 162 parcelas seleccionadas al azar; asimismo, se estimó la densidad de nidos en sitios con tres niveles de perturbación del ecosistema. Asimismo, para... |
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Palavras-chave: Agave; Zonas áridas; Insectos; Gestión; Utilización; Arid areas; Insects; Management; Utilization; Ganadería; Maestría. |
| Ano: 2013 |
URL: http://hdl.handle.net/10521/1970 |
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| Pérez de la Cruz, Manuel. |
| Se estudió la diversidad y abundancia de escolítidos asociados al agroecosistema cacao en cuatro localidades del estado de Tabasco, México durante el año 2007. La recolecta de los insectos se llevó a cabo mediante trampas cebadas con alcohol etílico, captura con trampa de luz fluorescente y captura directa sobre sus plantas hospederas. Se recolectaron 19,263 especímenes pertenecientes a 51 especies y 26 géneros; Araptus hymenaeae y Cnesinus squamosus son nuevos registros para México. 40 especies son nuevos registros para el estado de Tabasco. Los géneros con mayor riqueza de especies fueron Hypothenemus (8) y Xyleborus (7). Las especies Xyleborus volvulus, X. affinis, Hypothenemus eruditus, H. birmanus y Premnobius cavipennis fueron las que en... |
| Tipo: Tesis |
Palavras-chave: Insectos; Especies; Hospederos; Theobroma cacao; México; Doctorado; Entomología y Acarología; Insects; Species; Hosts. |
| Ano: 2008 |
URL: http://hdl.handle.net/10521/1516 |
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| Ramírez Delgadillo, Juan José. |
| La pitahaya es una cactácea que se cultiva en zonas con clima tropical, subtropical o semiárido de México. Tres especies tienen importancia económica como frutales. En Tepoztlán, Morelos, se encontraron plantas con síntomas causados por patógenos y daño por insectos. Debido a la importancia actual y potencial del cultivo y la incidencia de plagas y patógenos, se realizó el presente estudio con el objetivo de identificar taxonómicamente y describir daños de los principales agentes fitosanitarios asociados Hylocereus spp. Durante 2006-2008 se recolectaron mensualmente estructuras vegetativas y reproductoras dañadas; de 2007-2010 se aislaron e identificaron microorganismos (22± 1.5°C) e insectos (25 ± 1.5°C, 45 % HR y fotoperiodo 14:10) en laboratorio. En... |
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Palavras-chave: Plagas; Fitopatógenos; Taxonomía; Daños; Insectos; Hongos; Pitahaya; Pests; Phytopathogens; Taxonomy; Damage; Insects; Fungus; Doctorado; Fitopatología. |
| Ano: 2011 |
URL: http://hdl.handle.net/10521/356 |
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| Modenutti,Beatriz; Albariño,Ricardo; Bastidas Navarro,Marcela; Díaz Villanueva,Verónica; Souza,María Sol; Trochine,Carolina; Laspoumaderes,Cecilia; Cuassolo,Florencia; Mariluán,Gustavo; Buria,Leonardo; Balseiro,Esteban. |
| North Andean Patagonian aquatic systems include a number of deep and shallow oligotrophic lakes with a profuse hydrographic net. In this contribution we present a review of the researches carried out during the last decade in the food webs of North Patagonian water bodies. Food webs in these systems were studied based on field surveys, combining with field and laboratory experiments. Deep and shallow lakes were analyzed in relation to light, organic matter, and nutrient constraints as limiting interacting factors. In addition, we have also extended our knowledge on the structure and dynamics of stream food webs by analyzing different aspects of biotic interactions occurring both through the autotrophic and heterotrophic pathways. Since Andean lakes were... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Bacterioplankton; Phytoplankton; Zooplankton; Fish; Insects; Lakes and rivers. |
| Ano: 2010 |
URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S1667-782X2010000200003 |
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| Souza,Maria de F. P; Turco,Silvia H. N.; Silva,Eva M. S; Costa,Daniel dos S; Freire,Murilo S.. |
| ABSTRACT The current study aimed to evaluate the influence of three colors and two types of roofing materials under the internal temperature of bee colonies Apis mellifera. The experiment was conducted at the Agricultural Sciences Campus at the Federal University of Sao Francisco Valley located in Petrolina-PE, in November and December 2013, using 24 colonies housed in Langstroth hives. The experiment was a completely randomized factorial design (3x2) with three colors of box (blue, white, and traditional) and two types of cover (with and without the use of plaster) with six treatments and four replications. The internal temperature dates of the colonies were hourly recorded, during 24 hours, and surface temperatures were hourly recorded between 08h00 and... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Thermal comfort; Insects; Temperature. |
| Ano: 2015 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162015000400625 |
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| Registros recuperados: 107 | |
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