Fire Regime
Mostrando 1-12 de 13 artigos, teses e dissertações.
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1. Special offer while stocks last: high-energy pulse of nectar caused by a massive post-fire flowering of Sinningia elatior (Gesneriaceae) in an area of Cerrado and implications for its pollination
Resumo A intensa floração pós-fogo de Sinningia elatior (Gesneriaceae) foi estudada em uma área de Cerrado. Para estudar o sistema reprodutivo, testes de polinização foram realizados no campo. Espécimes de S. elatior foram encontrados isolados ou agrupados na área de estudo, as flores são tubulares, alaranjadas/avermelhadas e desprovidas de odor. Ap
Rodriguésia. Publicado em: 03/10/2019
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2. Thermal analysis of steel-concrete composite cross sections via CS-ASA/FA
Abstract When exposed to high temperatures, such as in a fire situation, the physical and resistance characteristics of the materials employed in the structure deteriorate as the temperature increases. This fact promotes a considerable loss in the bearing capacity and stiffness of the structural system. The verification of a structure exposed to fire depends
REM, Int. Eng. J.. Publicado em: 2018-04
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3. Modelo de simulação da dinâmica de vegetação em paisagens de coexistência campo-floresta no sul do Brasil
Uma questão que ainda instiga discussões na literatura ecológica é como explicar a coocorrência dinâmica e milenar de formações florestais e campestres sob um mesmo regime climático que tende a favorecer as primeiras, como ocorre atualmente com mosaicos florestacampo no sul do Brasil. A partir de meados do século XX, têm-se evidenciado um fenômen
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 2011
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4. Abundance of epigaeic arthropods in a Brazilian savanna under different fire frequencies
Fire is a major determinant of structure and dynamics in savannas, and the rapid increase of human activities in this biome has changed the natural burning regime. The effects of fire on the fauna of the cerrado (Brazilian savanna) are still poorly understood, and studies comparing sites frequently and infrequently burned are scarce. In this study, the abund
Zoologia (Curitiba). Publicado em: 2010-10
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5. O auxílio-doença no Regime Geral de Previdência Social
This master thesis concerning the subject of social security benefit of Sick Assistance in the Brazilian legal system. The subject is introduced passing for the description bringing the quarrel to the current days and the current legislative framing. After the chronological analysis of the facts related to the social protection, is boarded principles that co
Publicado em: 2010
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6. Efeito do manejo de fogo sobre comunidades de aves em campos sujos no Parque Nacional das Emas, GO/MS, Cerrado Central / Effects of fire management on birds in Emas National Park, Brazil, Central Cerrado
Several studies have investigated the effects of natural fires on Cerrado birds. However, avian responses to fire management have not been examined. We compared birds found in firebreaks (fire managed areas) and in fire unmanaged grasslands, in Parque Nacional das Emas, Central Brazil. This is the first study to evaluate the effects of prescribed fire on the
Publicado em: 2009
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7. Numerical Simulation of Accidental Explosions in Offshore Production Plant
The production of oil and gas is an inherently hazardous task. Therefore it is crucial to provide reliable estimates of the risks involved. The major contributors to the risk level of an offshore installation, for example, arise from accidents involving explosion and fire. Computational Fluid Dynamics (CFD) can be a powerful tool to help with the calculation
Publicado em: 2009
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8. Influência do histórico do fogo sobre a ornitofauna do Parque Nacional das Emas (GO/MS)
O fogo promove mudanças na vegetação e na fauna associada e sua função ecológica pode ser extremamente complexa. É o principal processo formador de mosaicos em muitos hábitats e no Cerrado, sua ocorrência data desde períodos anteriores à presença humana. No entanto, seus efeitos ecológicos ainda são pouco conhecidos principalmente em relação
Publicado em: 2009
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9. Vulnerability of the Minas Gerais landscape to global changes: an initial step to a bottom-up approach / Vulnerabilidade da paisagem de Minas Gerais Ãs mudanÃas globais: um passo inicial para uma abordagem tipo bottom-up.
A temperatura mÃdia do ar no estado de Minas Gerais aumentou 1,4oC, em relaÃÃo aos valores normais, no sÃculo passado. As previsÃes para o sÃculo XXI apontam um aumento de atà 3oC e alteraÃÃes nos padrÃes de distribuiÃÃo e na quantidade das chuvas. Esse cenÃrio poderà afetar a paisagem, por efeitos diretos e indiretos do clima sobre a fisiologi
Publicado em: 2008
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10. Satellite-observed photosynthetic trends across boreal North America associated with climate and fire disturbance
We analyzed trends in a time series of photosynthetic activity across boreal North America over 22 years (1981 through 2003). Nearly 15% of the region displayed significant trends, of which just over half involved temperature-related increases in growing season length and photosynthetic intensity, mostly in tundra. In contrast, forest areas unaffected by fir
National Academy of Sciences.
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11. Response of C3 and C4 plants to middle-Holocene climatic variation near the prairie–forest ecotone of Minnesota
Paleorecords of the middle Holocene (MH) from the North American mid-continent can offer insights into ecological responses to pervasive drought that may accompany future climatic warming. We analyzed MH sediments from West Olaf Lake (WOL) and Steel Lake (SL) in Minnesota to examine the effects of warm/dry climatic conditions on prairie–woodland ecosystems
National Academy of Sciences.
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12. Late Holocene human-induced modifications to a central Polynesian island ecosystem.
A 7000-year-long sequence of environmental change during the Holocene has been reconstructed for a central Pacific island (Mangaia, Cook Islands). The research design used geomorphological and palynological methods to reconstruct vegetation history, fire regime, and erosion and depositional rates, whereas archaeological methods were used to determine prehist