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Registros recuperados: 78
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Análise comparativa da dieta de quatro espécies de cucos (Aves: Cuculidae), no sul do Brasil Rev. Bras. Zool.
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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Arthropod responses to the experimental isolation of Amazonian forest fragments Rev. Bras. Zool.
Vasconcelos,Heraldo L.; Bruna,Emilio M..
Arthropods are the most diverse and abundant group of animals found in tropical lowland forests, and in light of ongoing global change phenomena, it is essential to better understand their responses to anthropogenic disturbances. Here we present a review of arthropod responses to forest deforestation and fragmentation based on studies conducted at the Biological Dynamics of Forest Fragments Project (BDFFP), located in central Amazonia. These studies involved a wide range of arthropod groups. All but one of the studies evaluated changes in total species number or species density in relation to fragment size, (i.e. area effects), and one-third also evaluated edge effects. Our review indicates that almost every arthropod group studied showed some kind of...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Area effects; Edge effects; Insects; Secondary succession; Tropical forest conservation.
Ano: 2012 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-46702012000600003
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The role of protein in the sexual behaviour of males of Ceratitis capitata (Diptera: Tephritidae): mating success, copula duration and number of copulations Rev. Bras. Zool.
Joachim-Bravo,Iara Sordi; Anjos,Cyntia Santiago; Costa,Anne Moreira.
In this paper, we investigated the influence of protein ingestion during the early adult phase on the sexual behavior of males of Ceratitis capitata (Wiedemann, 1824). The following parameters were evaluated: mating success (ability to be chosen by females), number of copulations, and copula duration. Experiments were carried out using a fifteen-year old laboratory lineage with the occasional introduction of wild flies. Two groups of adult males fed a high-protein diet during their larval phase were given either a high-protein diet (based on Brewer's yeast, concentration = 6.5 g/100 ml) or a no-protein diet. Both groups of males were exposed to females fed either a high-protein diet or a no-protein diet and were subsequently evaluated for the parameters...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Fruit flies; Insects; Nutrition; Sexual selection.
Ano: 2009 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-46702009000300004
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Dung decomposition and associated beetles in a fragmented temperate forest RChHN
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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Oviposition preference and larval performance in Ceratitis capitata (Díptera, Tephritidae) Zoologia
Joachim-Bravo,Iara Sordi; Zucoloto,Fernando Sérgio.
Experiments concerning oviposition preference were carried out on Ceratitis capitata to determine whether females are able to preferentially oviposit on natural hosts in which the larvae develop better. The results indicated that the females do not preferentially oviposit on hosts of better nutritive value for the larvae.
Tipo: Info:eu-repo/semantics/article Palavras-chave: Ceratitis capitata; Fruit flies; Oviposition behavior; Insects.
Ano: 1997 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81751997000400004
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Plant architecture influences gall abundance in a tropical montane plant species Acta Botanica
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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The entomological exhibition of a Science museum and its contributions to non-formal Education Biological Sciences
Ribeiro, Nathália Cristina Gonzalez; Sant'Ana, Débora de Mello Gonçales.
The Insecta Class is the most diverse group of animals on the planet. A big part of this composition is available in the collections of Natural History Museums, being essential for researches and diffusion actions involving a specialized and lay public. This paper aimed to verify the importance of an entomological exhibition of a Science museum for the acquisition of new knowledge and conception change regarding insects. To this end, 128 fourth-graders from elementary school were asked to draw an insect and write a brief description of it in relation to their knowledge about insects. Then, they visited an entomological exhibition, and a week later, using the "stimulated recollection method", they made a new drawing and description. The extracted data were...
Tipo: Info:eu-repo/semantics/article Palavras-chave: 2.01.00.00-0; 2.04.06.01-0; 6.08.00.00-3; Insects; Environmental Education; Scientific divulgation; Childish drawing. Biologia geral.
Ano: 2019 URL: http://periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/43668
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The insect reservoir of biodiversity for viruses and for antiviral mechanisms Anais da ABC (AABC)
OLMO,ROENICK P.; MARTINS,NELSON EDUARDO; AGUIAR,ERIC ROBERTO G.R.; MARQUES,JOÃO T.; IMLER,JEAN-LUC.
Abstract: Insects are the most diverse group of animals. They can be infected by an extraordinary diversity of viruses. Among them, arthropod-borne viruses (arboviruses) can be transmitted to humans. High-throughput sequencing of small RNAs from insects provides insight into their virome, which may help understand the dynamics of vector borne infectious diseases. Furthermore, investigating the mechanisms that restrict viral infections in insects points to genetic innovations that may inspire novel antiviral strategies.
Tipo: Info:eu-repo/semantics/article Palavras-chave: Antiviral immunity; Insects; Metagenomics; Restriction factors; RNA interference; Virome.
Ano: 2019 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652019000600604
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Biodiversity of Coreoidea and Pentatomidae (Heteroptera) from Atlantic forest protected areas. Insights into their conservation. Anais da ABC (AABC)
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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The ethnocategory ''insect'' in the conception of the inhabitants of Tapera County, São Gonçalo dos Campos, Bahia, Brazil Anais da ABC (AABC)
Costa-Neto,Eraldo M.; Magalhães,Henrique F..
This article deals with the construction of the "insect" ethnozoological dominium by the inhabitants of Tapera County, which is located in the municipality of São Gonçalo dos Campos, Bahia State. Data were obtained from March to May 2005 through open-ended interviews carried out with 23 men and 8 women, whose ages ranged from 6 to 66 years old. Interviewees were asked about how they perceived and defined the animals considered as "insects", which types they knew, and if they used them as food resource. Most of the interviews were tape-recorded, and semi-literal transcriptions are kept at the Ethnobiology Laboratoty of the Universidade Estadual de Feira de Santana. Considering the ethnozoological classification system of the inhabitants of Tapera, the term...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Ethnoentomology; Perception; Traditional knowledge; Insects.
Ano: 2007 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652007000200007
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Quantitative genetic variation of metabolism in the nymphs of the sand cricket, Gryllus firmus, inferred from an analysis of inbred-lines Biol. Res.
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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Honeydew foraging by birds in an Atlantic Forest fragment of Minas Gerais State, Brazil Biota Neotropica
Teixeira,Fagner Daniel; Azevedo,Fernando Cesar Cascelli de.
Honeydew foraging by birds has been extensively documented in recent years. However, this interaction has been poorly documented in Brazil, with predominance of few species of birds foraging only in Mimosa scabrella trees. With the objective of describing the behavior of birds interacting with scale insects associated with trees, we conducted a study at the Serra de São José, Tiradentes, in the State of Minas Gerais, Brazil. Observations were recorded from June to July 2012. We observed 13 species of birds feeding on honeydew scale insects, eight never previously recorded. We observed individuals using aerial and surface maneuvers to collect the honeydew on the branches or reaching the droppings below the branches. These species were observed foraging...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Trophic connections; Excretion; Insects; Behavior maneuvers; Serra de São José.
Ano: 2013 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032013000400391
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Survey of edaphic fauna in forest fragment in the municipality of Anchieta (SC, Brazil) Biota Neotropica
Brancher,Denise; Roza-Gomes,Margarida Flores.
Among the edaphic Hexapods, the insects are more abundant and important in that they act as environmental indicators. This study aimed to conduct a survey of the edaphic fauna in a forest fragment of transition from ombrophilous forest to mixed seasonal deciduous forest in the municipality of Anchieta, SC, Brazil. Samples were collected every fortnight from May to August 2010 by using the method of pitfall traps. Were collected 6598 individuals. The groups more abundant was Hymenoptera with 3398 individuals (51%), Collembola with a total of 1370 individuals (21%) and Diptera represented by 910 individuals (14%). The Simpson Index was found 0.60 and the Shannon Diversity Index was 3.00. The results obtained show that the place studied by provide conditions...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Insects; Pitfall traps; Seasonal fluctuation; Soil fauna.
Ano: 2012 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032012000300010
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Metacercariae of Eumegacetes medioximus (Digenea: Eumegacetidae) in larvae of Odonata from Brazil Biota Neotropica
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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Efficiency of n-octyl-acetate, 2-heptanone and citronellal in repelling bees from basil (Ocimum sellowii - Labiatae) BABT
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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Isolation, pathogenicity and disinfection of Staphylococcus aureus carried by insects in two public hospitals of Vitória da Conquista, Bahia, Brazil BJID
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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Bacillus thuringiensis monogenic strains: screening and interactions with insecticides used against rice pests BJM
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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Hosting Capacity of Horticultural Plants for Insect Pests in Brazil Chilean J. Agric. Res.
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
Registros recuperados: 78
Primeira ... 1234 ... Última
 

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