Latitude Variation
Mostrando 13-24 de 54 artigos, teses e dissertações.
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13. Classificação climática segundo Köppen e Thornthwaite e caracterização edafoclimática referente à região de Santa Maria, RS / Climatic classification by Köppen and Thornthwaite and edaphoclimatic characterization related to Santa Maria region, State of Rio Grande do Sul, Brazil
The present work was developed with the purpose of analyzing the climatic classification by Köppen and Thornthwaite (comparing the values of soil water holding, actual evapotranspiration, water deficit and water excess for cyclic water balance using monthly data), and of proposing an edaphoclimatic characterization related to the mesoclimatic region of Sant
Publicado em: 2009
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14. Modelagem matemática da variação espaço-temporal da temperatura média diária e do ciclo do algodoeiro herbáceo no Estado de Goiás / Mathematical modeling of the spatio-temporal variation of the daily average temperature and of the herbaceous cotton cycle in the State of Goiás-Brazil
As condições climáticas regionais do Estado de Goiás são favoráveis ao cultivo do algodoeiro herbáceo (Gossypium hirsutum L. r. latifolium hutch), contudo, para alcançar as melhores produtividades, é imprescindível que a semeadura e o período de frutificação coincidam com o período de maior disponibilidade de água no solo e os períodos de abe
Publicado em: 2009
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15. A test of Allen's rule in ectotherms: the case of two south American Melanopline Grasshoppers (Orthoptera: Acrididae) with partially overlapping geographic ranges
We studied the geographic variation of three morphometric characters in relation to body size in two South American grasshoppers (Acrididae), Dichroplus vittatus Bruner and D. pratensis Bruner to test Allen's rule in these ectotherms. Since both species follow the converse to Bergmann's rule owing to latitudinal and/or altitudinal variation in time available
Neotropical Entomology. Publicado em: 2008-08
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16. Métodos de semeadura e uso de mantas no controle de erosão em taludes de corte / Sowing methods and use of erosion control blankets on cut embankments
The study was carried out on a cut embankment located on the Federal University of Viçosa campus, Brazil, at latitude 20o 46 10.21"S and 42o 51 31.29"W. The hillside cut had been excavated in 2006 to provide location for the University Recyclable Materials Shed (Galpão de Triagem de Materiais Recicláveis - ASBEM). A random design was used for the experime
Publicado em: 2008
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17. Determinação da heterose e da capacidade geral e específica de combinação para dez características agronômicas em pimentão (Capsicum annuum L.).
The aim of the present study was to evaluate the agronomic potential, general and specific capability to combine and heterosis between the varieties of sweet pepper (Capsicum annuum L.). The experiments were conducted at the Crop Area of the Agronomy Department of the Federal Rural University of Pernambuco in Recife, Pernambuco (Brazil) (latitude 8 10 52 S a
Publicado em: 2008
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18. Mitochondrial and morphological variation populations of New World Screwworm fly, Cocchliomyia hominivorax / Variabilidade mitocondrial e morforlogica em populações naturais da mosca da bicheira, Cochliomyia hominivorax
A mosca da bicheira, Cochliomyia hominivorax, é um ectoparasita de animais de sangue quente endêmico da região Neotropical, responsável por causar graves prejuízos à pecuária. Nesta tese, diferentes aspectos da variação molecular e morfológica da espécie foram abordados com o objetivo de se obter um cenário mais amplo sobre a extensão e distribu
Publicado em: 2008
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19. Characterization of the natural and anthropic factors which have been responsible for erosion acceleration of the urban area of the basin of the Campo Alegre stream / Caracterização dos fatores naturais e antrópicos responsáveis pelo desencadeamento das feições erosivas na cabeceira do Córrego Campo Alegre
This work aims to characterize the natural and anthropic factors which have been responsible for the erosion acceleration of the urban area of the basin of Campo Alegre stream. The study area has approximately 5,52km2 and is located in the southeast portion of the city of Uberlândia, MG, between the geographical coordinates 18o 57 21" and 18o 58 35" south l
Publicado em: 2007
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20. Termodecomposição, estudos de carbonização e silicificação da matéria orgânica e corpos silicosos em ecossistemas terrestres no Brasil e na Antártica / Thermodecomposition, organic matter carbonization silicification studies and silica bodies in terrestrial ecosystems in Brazil and Antarctica
Soil organic matter (SOM) is highly heterogeneous in composition, which consists of components as different from each other as labile carbohydrates and recalcitrant aliphatic compounds. Mean residence time (MRT) of the various compounds comprising soil organic matter may range from a few minutes to thousands of years. This wide range is partly due to the soi
Publicado em: 2007
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21. Intrusão de vorticidade potencial na alta troposfera sobre o Atlântico tropical sul e sua relação com a precipitação no NE do Brasil / Instrusion of the potential vorticity in the upper troposferic over south tropical atlantic and its relation with precipitation over NE of Brazil
A região Nordeste do Brasil (NEB) apresenta uma grande variabilidade interanual da precipitação, explicada através de diversos fenômenos atmosféricos. Um sistema que pode ter relação com essa variabilidade é o evento de intrusão, caracterizado pela quebra da onda de Rossby que proporciona uma interação entre a região tropical e extratropical. De
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 20/02/2006
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22. Study of the hair cycle in dogs of different coats in tropical climate in Brazil / Estudo do ciclo piloso em cães de diferentes pelames em região de clima tropical no Brasil
The hair cycle has been extensively studied in humans, sheep and laboratory animals, however there is a lack of studies on dogs. Besides varying according to the species, breed, sex and general health conditions, the hair cycle is mainly affected by climatic variations. The objective of the present work was to analyze and increase our understanding of the ha
Publicado em: 2006
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23. Crescimento e desenvolvimento do cafeeiro sob efeito da adubação nitrogenada / Growth and development of the coffee plant related to nitrogen fertilization
Nitrogen fertilization for coffee plants (Coffea arabica) is mainly of importance for crops at the beginning of development and production. The effect of the fertilization is sufficiently sharp when rates of the fertilizer are chosen to maximize the productivity of the crop coffe. With the purpose of characterizing the growth and development of coffee plants
Publicado em: 2006
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24. Geographic patterns of the fruit traits from Atlantic forest: environmental and ecological relationships of the dispersal modes / Padrões geográficos das síndromes de dispersão e características dos frutos de espécies arbustivo-arbóreas em comunidades vegetais da Mata Atlântica
Fruits with seeds dispersed by vertebrates are very frequent in tropical forests. However, there is a great variation in the proportion of zoochoric fruits when different communities are compared. Atlantic forest might have between its species, similar proportion of biotic dispersal modes comparing with other tropical forest communities but, its communities
Publicado em: 2006