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| Registros recuperados: 208 | |
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| Machado,Terezinha Feitosa; Pereira,Rita de Cássia Alves; Batista,Valéria Chaves Vasconcelos. |
| Lippia alba is a shrub of the Verbenaceae family, popularly known as lemon balm. It's essential oil is said to have broad-spectrum antimicrobial activity whose effectiveness varies according to its composition, which is influenced by both biotic and abiotic factors. The present study aimed to evaluate the antimicrobial effectiveness of oil taken from the leaves of L. alba collected at different times of the year, against microorganisms of importance in food. The oil, obtained by hydrodistillation, was tested against standard cultures of Pseudomonas aeruginosa, Salmonella choleraesuis, Escherichia coli, Staphylococcus aureus, Listeria monocytogenes and Listeria innocua using agar diffusion techniques. The different sampling times had a big influence on the... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Lippia alba; Antimicrobial activity; Seasonality. |
| Ano: 2014 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1806-66902014000300011 |
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| Marinoni,Luciane; Almeida,Gisele Luziane de. |
| During one year of the project called "Survey of the Entomological Fauna in Paraná State" (henceforth PROFAUPAR), 126,340 adult specimens of Trichoptera were collected with light trap. The individuais of the family Hydropsychidae were identified and a list of species is presented. Eighteen species in four genera were identified. From this, S. (R.) discalis Flint, 1972,5. (R.) paramnsis Flint, 1983;S (R.) spinulosa Flint, 1972 are for the first time registered for Brazil and Leptonema sparsum (Ulmer, 1905), Macrostemum hyalinum (Pictet, 1836), S. (Smicridea) albosignata Ulmer, 1907; S. (Rhyacophylax) dentifera Flint, 1983; S. (R.) iguazu Flint, 1983; S. (R.) piraya Flint, 1983; S. (R.) unguiculaia Flint, 1983; S. (R.) vermiculata Flint, 1978 and S. (R.)... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Trichoptera; Hydropsychidae; Abundance; Seasonality; Species rich-ness; Light trap; Paraná; Brazil. |
| Ano: 2000 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81752000000100025 |
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| Almeida,Gisele Luziane de; Marinoni,Luciane. |
| From 126,340 adult specimens of Trichoptera captured with light trap during one year of the project called "Survey of the Entomological Fauna in Paraná State" (Paraná, Brazil), 6,375 belong to the family Leptoceridae. The individuals of the family were identified and a list of species is presented. The following species are recorded for the first time to Paraná State: Achoropsyche duodecimpunctata (Navas. 1916); Nectopsyche aureovittala Flint, 1983; Nectopsyche fuscomaculata Flint, 1983; Nectopsyche muhni (Navas, 1916); Nectopsyche separata (Banks, 1920); Nectopsyche ortizi Holzenthal, 1995; Nectopsyche splendida (Navas, 1917) and Tripleclides gracilis (Burmeister, 1839). Discussion on individual abundance and species seasonality are also presented. |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Trichoptera; Leptoceridae; Abundance; Seasonality; Species richness; Light trap; Paraná; Brazil. |
| Ano: 2000 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81752000000200005 |
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| Passos,Fernando C.; Alho,Cleber J. R.. |
| Prey foraging behavior in the Black Lion Tamarin, Leontopithecus chrysopygus (Mikan, 1823) was observed in the Caetetus Ecological Station, southeastern Brazil, during 550 hours of direct observations between December 1993 and February 1995. The scan sampling method was used to gather data. These tamarins use manipulative, specific-site foraging behavior. When searching for animal prey items, they examine a variety of microhabitats. The most important microhabitat used for prey foraging behavior was tree cavities (41% of the foraging observations), but palm trees (22%), bamboo (12%), vines (11%), bark (5%), seed pods of the "jequitiba" tree (4%), other places (3%) and epiphytes (2%) were also observed. Animal preys were frequently captured in understory... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Mammalia Leontopithecus chrysopygus; Black lion tamarin; Foraging behavior; Microhabitats; Seasonality; Primates. |
| Ano: 2001 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81752001000500029 |
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| Bispo,Pitágoras da Conceição; Froehlich,Cláudio Gilberto; Oliveira,Leandro Gonçalves. |
| The stonefly (Pleeoptera) nymphs of streams of the Almas River basin, Pirenópolis, Goiás State, Central Brazil, and some abiotie factors that might affect their temporal distribution were studied. Nymphs were sampled monthly (June 1993 to July 1994) in five stations with a Surber sampler, and each sample consisted of 20 units totalling 2 m². In each station, stream velocity, discharge, temperature, electrical conductivity and pH were measured in order to assess their influence on the density of nymphs. Nymphs were identified to genus level. In general, the annual variation in density of nymphs, in four stations, showed that the seasonal variation was not clearly influenced by the annual rain cycle. In the case of the one of the stations, where numbers of... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Pleeoptera; Nymphs; Central Brazil; Abiotie factors; Seasonality. |
| Ano: 2002 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81752002000500026 |
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| Pedó,Ezequiel; Tomazzoni,Ana C.; Hartz,Sandra M.; Christoff,Alexandre U.. |
| The crab-eating fox, Cerdocyon thous (Linnaeus, 1766), is a small canid with twilight and nocturnal habits from savannas and forests of South America. In this study, we seasonally determined and quantified the diet of C. thous in Lami Biological Reserve, a conservation unit with 179.78ha situated in a suburban area in the municipality of Porto Alegre, southern Brazil. During the year 2000, we collected 80 fecal samples - 20 for each season - in two or three week sampling intervals, along trails inside the Reserve. Samples were dried in an oven for 24h at 60ºC, immersed in 70% alcohol, and prey items were identified using a stereomicroscope. The diet of the crab-eating fox was essentially carnivorous (87.62% composed by vertebrates), with seasonal variation... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Canids; Food habits; Rio Grande do Sul; Seasonality; South America. |
| Ano: 2006 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81752006000300005 |
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| Oliveira,Marcio Luiz de. |
| Euglossinae bee fauna of two areas of terra firme forest near Manaus, Amazonas, Brazil was compared. Over a twelve-month period collections were done fortnightly, between 7:00 a.m and 5:00 p.m, using traps with eight kinds of scent baits. The traps were placed in the understory and in tree crowns. The majority of species and specimens was most active between August-December, near the beginning of the rainy season in this region. The bees were most active from 9:00 a.m. until 4:00 p.m., while air temperatures were between 24.5-27ºC, but there was a decline in this activity when air temperature varied above or below of this range. There were differences in the seasonality and in the daily activity patterns for the two areas studied but these differences were... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Orchid-bees; Euglossinae; Daily activity; Seasonality; Amazonia. |
| Ano: 1999 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81751999000100003 |
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| Cunha,Rodrigo da; Blochtein,Betina. |
| A study of the life history of the solitary bee Monoeca xanthopyga, was conducted at the Araucária Plateau, at the state of Rio Grande do Sul. The study focused the seasonality, sexual behavior, females activity during nest building, the exploited plant resources and the associated parasitoids. Three nest aggregations of M. xanthopyga built in clay soil with few plant cover or none at all, were studied on the Parque Nacional dos Aparados da Serra, located in Cambará do Sul, Rio Grande do Sul State. The nests were randomly distributed in areas up to eight square meters in size and reach a maximum density of 57 nests per square meter. The only one generation occurred from January to April. The immature stayed in diapausa in the prepupa stage during eight to... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Floral rewards; Monoeca xanthopyga; Nest aggregations; Parasitoids; Reproductive behavior; Seasonality; Tapinotaspidini. |
| Ano: 2003 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81752003000100013 |
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| Bispo,Pitágoras C.; Froehlich,Cláudio G.; Oliveira,Leandro G.. |
| A survey of the stonefly (Plecoptera) fauna of streams of the Almas River basin, Pirenópolis, Goiás State, Central Brazil, is presented as well as data of some factors that could affeet the temporal distribution of the adults. For checking adult phenology, light sources were used in three stations from June 1993 to Jully 1994. The sampled individuais were identified to species or morphospecies, as possible. In this study, 301 individuais belonging to the perlid genera Anacroneuria Klapálek, 1909, Kempnyia Klapálek, 1916 and Macrogynoplax Enderlein, 1909 were collected. Adults of most species were collected along the studied period, except for those of Kempnyia that were restricted to the warm-rainy season, the same pattern for this genus in southeastern... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Plecoptera; Central Brazil; Adult phenology; Seasonality. |
| Ano: 2002 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81752002000500025 |
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| Azevedo,Celso Oliveira; Santos,Hélio Sá. |
| A survey of Monomachidae species was carried out in anarea of Atlantic rain forest of the Biological Reserve of Duas Bocas, Espírito Santo State, Brazil between September, 1996 and August, 1997. Two species of Mollomachus Klug, 1841, M. fuscator Perty, 1833 and M. eurycephalus Schletterer, 1890 were collected from May to September. Both species are typical of winter time and showed the same parttern of seasonality. |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Hymenoptera; Monomachidae; Monomachus; Seasonality; Neotropical. |
| Ano: 2001 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81752001000200010 |
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| Almeida,Ronaldo de; Bernardi,José Vicente Elias; Oliveira,Ronaldo Cavalcante; Carvalho,Dario Pires de; Manzatto,Angelo Gilberto; Lacerda,Luiz Drude de; Bastos,Wanderley Rodrigues. |
| The study was conducted in Puruzinho lake (Humaitá, AM) considering seasonal periods of rainy and dry in way to elucidate the flood pulse importance in the deposition, remobilization and distributions of mercury and organic matter in bottom sediments in the Madeira River Basin (Brazilian Amazon). Bottom sediments and soils samples were analyzed for total mercury and organic matter. Mercury concentrations obtained in bottom sediment were 32.20-146.40 ng g-1 and organic matter values were 3.5 - 18.0%. The main region for accumulation of mercury and organic matter was in the central and deepest lake area In the rainy season there was a greater distribution of Hg and organic matter, mainly controlled by means of income of the Madeira river water during... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Organic matter; Indicator kriging; Madeira river; Seasonality. |
| Ano: 2014 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0044-59672014000100010 |
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| ARAUJO,Elias da Costa; MARTINS,Lucas Pereira; DUARTE,Marcelo; AZEVEDO,Gisele Garcia. |
| ABSTRACT Rainfall is one of the most influential factors driving insect seasonality in the Amazon region. However, few studies have analyzed the temporal dynamics of fruit-feeding butterflies in the Brazilian Amazon, specially in its eastern portion. Here, we evaluated the diversity patterns and temporal distribution of fruit-feeding butterflies in a remnant of eastern Amazon forest in the Baixada Maranhense, northeastern Brazil. Specifically, we tested whether fruit-feeding butterflies are temporally structured and whether rainfall influences species richness and abundance. Butterflies were collected with baited traps in both the rainy and dry seasons for two consecutive years. In total, we captured 493 butterflies belonging to 28 species, 15 genera and... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Brazilian Amazon; Frugivorous butterflies; Maranhão; Seasonality; Temporal diversity; Tropical forest. |
| Ano: 2020 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0044-59672020000100012 |
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| Fujimoto,Rodrigo Yudi; Anjos,Ellem Cristina Silva dos; Ramos,Fabrício Menezes; Martins,Maurício Laterça. |
| The current study presents a parasitological survey of larval nematodes from freshwater ornamental fish Iguanodectes spilurus caught in the watercourse of the Caete River, in the northeast region of the State of Para, Brazil. A total of 176 specimens, 1.36±0.75 g weight and 5.53±0.98 cm total length, were analyzed. Nematode larvae were identified as Capillaria sp., Procamallanus sp. and Anisakidae, with prevalence of 70.45% and infection intensity ranging from 1.81 to 4.70 larvae. The highest prevalence 57.38% occurred in the liver, but no seasonality was observed, indicating high infection throughout the year. Seasonality was observed in fish parasitized in the stomach, intestine and caecum, with prevalence and mean intensity of 17.61% and 2.32 parasites,... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Characidae; Parasitology; Seasonality; River. |
| Ano: 2013 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0044-59672013000400013 |
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| de CARVALHO,Denisar Paggioli; de OLIVEIRA,Harley Nonato. |
| Physic nut (Jatropha curcas L.) is an oilseed, semi-evergreen shrub or small tree of the Euphorbiaceae family, whose seeds contain oil that can be processed into a high quality biofuel. However, there have been reports of arthropods feeding from its leaves, including the green leafhopper Empoasca sp. (Hemiptera: Cicadellidae). The large numbers of this insect, observed in certain periods of the year in many regions of Brazil, are causing damage to the oilseed crops. This study aims at evaluating the fluctuation in green leafhopper population in a physic nut crop in Dourados, Mato Grosso do Sul, to assess possible correlations with rainfall, maximum, average and minimum temperatures. This evaluation was conducted between March 2011 and July 2012. The... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Jatropha curcas; Green leafhopper; Rainfall; Seasonality. |
| Ano: 2016 |
URL: http://www.scielo.org.co/scielo.php?script=sci_arttext&pid=S0120-548X2016000100008 |
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| Menezes,Isiara Silva; Couto-Santos,Ana Paula Lima do; Funch,Ligia Silveira. |
| ABSTRACT We compared the reproductive phenology and floral visitors of Eschweilera tetrapetala growing along the edge and in the interior of a submontane forest in the Chapada Diamantina mountains, Bahia State, Brazil. We sought to determine if there were inter-annual differences in intensity and seasonality associated with environmental conditions, and if there were differences in floral visitors between the two environmental contexts. Phenological observations were performed for three years, and included the occurrence of an El Niño event. We applied circular statistics to detect seasonal trends, performed cross correlations between phenophases and climate, Kruskal-Wallis and Wilcoxon signed-rank tests for inter-annual variation, and the... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: El Niño; Eschweilera tetrapetala; Floral visitors; Linear edge effects; Phenology; Precipitation; Seasonality. |
| Ano: 2018 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062018000100001 |
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| Registros recuperados: 208 | |
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