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Registros recuperados: 78 | |
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Repenning,Márcio; Basso,Helena C. de P.; Rossoni,Jonas R.; Krügel,Marilise M.; Fontana,Carla S.. |
We studied stomachs contents of 50 specimens of four common cuckoo species (Cuculidae) from southern Brazil: Guira guira (Gmelin, 1788) (n = 21), Coccyzus melacoryphus (Vieillot, 1817) (n = 8), Crotophaga ani (Linnaeus, 1758) (n = 11), and Piaya cayana (Linnaeus, 1766) (n = 10). We measured stomach volume and prey were identified and quantified based in their dimensions. The size of the prey was associated with bill width and body mass. Diet items were analyzed and identified to the lowest possible taxonomic level, based on literature, scientific collection data, and specialists. The diet of the four species was composed by 100% animal species, with invertebrate dominance. Only in G. guira stomachs the presence of vertebrates was observed more than once... |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Arthropoda; Coccyzus melacoryphus; Crotophaga ani; Guira guira; Insects; Piaya cayana. |
Ano: 2009 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-46702009000300008 |
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BUSTAMANTE-SÁNCHEZ,MARCELA A.; GREZ,AUDREY A.; SIMONETTI,JAVIER A.. |
Habitat fragmentation may result in changes in species number and population abundance among habitats that differ in area, structure, or edge characteristics. These changes, in turn, may result in alterations in ecosystem process such as decomposition of organic matter. Through an experimental approach, we compared the beetles assemblages associated with dung and decomposition of cow feces in a continuous portion of Maulino forest, forest fragments and in pine plantations that surround this forest and forest remnants. Abundance and richness of dung-associated beetles were lower in forest fragments compared to the continuous forest and pine plantations. However, dung decomposition was similar in these three habitats. Beetle abundance, species richness and... |
Tipo: Journal article |
Palavras-chave: Temperate forest; Fragmentation; Insects; Decomposition. |
Ano: 2004 |
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0716-078X2004000100009 |
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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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Registros recuperados: 78 | |
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