Population Fluctuation
Mostrando 13-24 de 95 artigos, teses e dissertações.
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13. Fauna and stratification of male orchid bees (Hymenoptera: Apidae) and their preference for odor baits in a forest fragment
This is a study of the population fluctuation of euglossine species, as well as their preferences for scent baits (cineole, eugenol, vanillin and methyl salicylate) in two forest strata (canopy and understory) at the Reserva Florestal do Azulão, a forest fragment located in the municipality of Dourados, MS, Brazil (22°12'S, 54°55'W). We collected a total
Neotropical Entomology. Publicado em: 2011-12
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14. Malaria vector species in Colombia: a review
Here we present a comprehensive review of the literature on the vectorial importance of the major Anopheles malaria vectors in Colombia. We provide basic information on the geographical distribution, altitudinal range, immature habitats, adult behaviour, feeding preferences and anthropophily, endophily and infectivity rates. We additionally review informatio
Memórias do Instituto Oswaldo Cruz. Publicado em: 2011-08
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15. Effect of soil management on the white grub population and damage in soybean.
To evaluate the effect of soil management systems on population of white grubs, (Phyllophaga cuyabana Moser), and on its damage in soybean, experiments were set up under no-tillage and conventional tillage (one disk plow, and a leveling disk harrow) areas. Primary tillage equipment, used in other soil management systems, such as moldboard plow, disk plow, ch
Pesquisa Agropecuaria Brasileira. Publicado em: 2011
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16. Tamaño poblacional, uso del hábitat y relaciones interespecíficas de Agalychnis spurrelli (anura: hylidae) en un bosque húmedo tropical remanente del noroccidente de Ecuador
Throughout 2006 and 2007, at a small swamp in San Francisco del Cabo, northwestern Ecuador, monthly field expeditions were done to monitor a population of the leaf frog Agalychnis spurrelli with the following aims: (1) to determine population size and annual fluctuation; (2) to determine spatial distributional patterns and microhabitat resource partitioning;
Papéis Avulsos de Zoologia (São Paulo). Publicado em: 2011
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17. Biotécnicas da reprodução animal aplicadas à conservação de cervídeos.
The present work aimed to present a literature research about two deer species - Blastocerus dichotomus (llliger, 1815) - Cervo-do-pantanal and Ozotocerus bezoarticus (Linnaeus, 1758) - Veado-campeiro, due to their importance in Central Brazil. The main aspects studied were: species biology, density and populational distribution; factors related to their dec
Planaltina. Publicado em: 2011
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18. Monitoramento de Anastrepha fraterculus (Wied. 1830) (Diptera: Tephritidae) : flutuação populacional, avaliação de atrativos e caracterização ovariana / Monitoring Anastrepha fraterculus (Wied. 1830) (Diptera: Tephritidae): population fluctuation, attractant assessment and ovarian characterization
A mosca-das-frutas sul-americana, Anastrepha fraterculus (Wiedmann, 1830) (Diptera:Tephritidae), é a principal praga das frutíferas no Sul do Brasil. Este trabalho buscou caracterizar as populações de moscas-das-frutas capturadas em armadilhas, avaliando o número, a razão sexual e o estágio de maturação dos órgãos reprodutivos de fêmeas. Realizou
Publicado em: 2011
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19. Monitoring fruit flies (Diptera, Tephritidae) in five municipalities of the state of Goiás Brazil / Monitoramento de moscas-das-frutas (Diptera, Tephritidae) em cinco municípios no estado de Goiás
Fruit flies (Diptera, Tephritidae) are important insect pests in world fruit orchards; responsible for significant yield losses, and an obstacle to the fruit market due to quarantine restrictions imposed by importing countries. The knowledge of their population dynamics in a specific region is an important factor in insect pest management programs. Fruit fli
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 18/08/2010
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20. HBV markers in haemodialysis Brazilian patients: a prospective 12-month follow-up
The aim of this study was to determine the prevalence and the incidence of hepatitis B virus (HBV) among haemodialysis (HD) subjects and to evaluate whether testing for serological markers at the time of admission is suitable for HBV screening in this population. One hundred twenty-three patients belonging to two HD centres from São Paulo, Brazil, were test
Memórias do Instituto Oswaldo Cruz. Publicado em: 2010-02
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21. Flutuação populacional de Phyllocnistis citrella Stainton em Citrus deliciosa e no híbrido Murcott Citrus sinensis x Citrus reticulata / Phyllocnistis citrella Stainton population fluctuation in Citrus deliciosa and Murcott hybrid Citrus sinensis x Citrus reticulata
O objetivo desta pesquisa foi avaliar a dinâmica populacional de Phyllocnistis citrella Stainton, (Lepidoptera: Gracillariidae), o minador-dos-citros, em pomares de tangerineira Citrus deliciosa Tenore variedade Montenegrina e de tangoreiro híbrido “Murcott” Citrus sinensis L. Osbeck X Citrus reticulata Blanco, com manejo orgânico, em Montenegro (29°
Publicado em: 2010
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22. Fatores determinantes do ataque de Coccus viridis ao cafeeiro / Determinants factors of the attack of Coccus viridis to coffee plants
A cochonilha-verde Coccus viridis Green (Hemiptera: Sternorrhyncha: Coccidae) é uma espécie cosmopolita, que é praga do café e outras culturas. Devido a sua importância há necessidade de se conhecer os fatores que influenciam seu ataque. Assim, este trabalho teve como objetivo estudar os efeitos da fase da cultura do café, dos elementos climáticos, d
Publicado em: 2010
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23. Usos e qualidade da água em região semi-árida do nordeste brasileiro: percepção ambiental de professores e alunos
Density and biomass of bacterioplankton in parts of the Marechal Dutra reservoir were studied in periods of dry and rainy season. The averages of the total bacterial densities oscillated in the order of 107 organisms/ mL of sample. The cocci cells were numerically predominant, influencing considerably the total abundance of the bacterioplankton. The total ba
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 24/04/2009
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24. Estrutura populacional de Aegla schmitti (Crustacea: Anomura: Aeglidae) nos reservatórios dos Mananciais da Serra, Piraquara, Paraná, Brasil
A study on population structure of Aegla schmitti Hobbs III, 1979 was carried out at Mananciais da Serra, in the municipality of Piraquara, state of Paraná, Brazil (25º29'S, 48º58'W). The following aspects were treated: temporal fluctuation in abundance, sex ratio, reproductive period and size composition based on carapace length. The animals were collete
Zoologia (Curitiba). Publicado em: 2009-03