Tropical Rain Forests
Mostrando 13-24 de 46 artigos, teses e dissertações.
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13. Parque Nacional do Jaú, Protected Area and Worldwide Natural Heritage in the Brazilian Amazônia: does the articulation of instruments permit better protection? / Parque Nacional do Jaú, Unidade de Conservação e Patrimônio Natural Mundial na Amazônia Brasileira: a articulação de instrumentos permite melhor proteção?
The Parque Nacional do Jaú protected areas by SNUC (National System of Units of Nature Conservation) is located, approximately, 200km northwest of Manaus and it is within the territorial limits of the municipalities of Barcelos and Novo Airão in the state of Amazonas. Being the biggest National Park of Brazil with 2.272.000 hectares, covering the second la
Publicado em: 2010
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14. A etnoecologia dos jardins-quintal e seu papel no sistema agrícola de populações quilombolas do Vale do Ribeira, São Paulo / The Ethnoecology of homegardens and its role in the agricultural systems of the quilombola communities of Ribeira Valley, São Paulo.
This study aims to describe several aspects related to the structure and function of 71 homegardens which are here interpreted as subunities of the complex agricultural system present in the quilombola communities of the Ribeira Valley, municipality of Eldorado, SP. This description allows for the comprehension of the importance of these swidden plots in the
Publicado em: 2010
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15. Obtenção e análise de frações enriquecidas de uncaria tomentosa (Willd) DC.
Uncaria tomentosa is a tropical liana native form Brazilian and Peruvian rain forests. The specie is recognized by its immune stimulant, anti-viral, anti- inflammatory and anti-cancer properties often attributed to the polyphenolic fraction and manly to the peculiar pentaciclic oxindole alkaloidal fraction. On the technological field, aiming the transformati
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 2010
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16. Primate community of the tropical rain forests of Saracá-Taqüera National Forest, Pará, Brazil
O Brasil tem o maior número de espécies de primatas do mundo, e a Amazônia é uma das mais ricas florestas, com 15 (cerca de 90%) dos gêneros de primatas neotropicais. Embora considerados elementos essenciais nas estratégias atuais de conservação, de modo geral há grande escassez de informação sobre os primatas das áreas protegidas na região. Apr
Brazilian Journal of Biology. Publicado em: 2009-11
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17. Modelagem da dinâmica de crescimento de uma Floresta Ombrófila aerta do estado de Rondônia / Modelling of growth dynamics of tropical rain forest of State of Rondonia, Brazil.
A model of the growth dynamics of forests was developed applying Bertalanffy growth model (BGM) y=a[(1ebt)c] for individual trees. Based on linearized relationship with diameter and height equation LnH=b0+LnD and volume equation V=b0Db1Hb2 mutually compatible equations for diameter, basal area, height and volume were generated, adjusting parameters a and c o
Publicado em: 2009
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18. DistribuiÃÃo espacial e efeito de borda em briÃfitas epÃfitas e epifilas em um remanescente de floresta atlÃntica nordestina
Bryophytes work like a key group to elucidate answers to the environmental variations because his elevated sensibility to microclimate and especific microhabitats. This study aimed to deepen the knowledge on the ecology of epiphyte and epiphyllous bryophyte communities in relation to fragmentation in an Atlantic Forest remanant (2.628ha) of the Ecological St
Publicado em: 2009
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19. Trypanocidal constituents in plants: 7. Mammea-type coumarins
Calophyllum brasiliense and Mammea americana (Clusiaceae) are two trees from the tropical rain forests of the American continent. A previous screening showed high trypanocidal activity in the extracts of these species. Several mammea-type coumarins, triterpenoids and biflavonoids were isolated from the leaves of C. brasiliense. Mammea A/AA was obtained from
Memórias do Instituto Oswaldo Cruz. Publicado em: 2008-08
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20. Diversity and natural regeneration of trees in Restinga Forests in Ilha do Cardoso, Cananéia, SP, Brazil / Diversidade e regeneração natural de árvores em florestas de restinga na ilha do Cardoso, Cananéia, SP, Brasil
Esta dissertação teve como objetivo analisar a dinâmica de regeneração natural de três formações florestais de restinga (uma Floresta de Restinga Alta Seca - RAS; uma Floresta de Restinga Alta Alagada - RAA; e uma Floresta de Restinga Baixa - RB) com diferentes condições edáficas, composições florísticas e estruturas, da Ilha do Cardoso, Canan�
Publicado em: 2008
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21. Foraging patterns and plant biomass consumed by Atta laevigata (Hymenoptera: Formicidae) in area of Brazilian Cerrado / Padrões de forrageamento e biomassa vegetal consumida por Atta laevigata (Hymenoptera : Formicidae) em uma área do cerrado brasileiro
Leaf-cutting ants of the genus Atta (Formicidae: Attini) are considered highly generalist herbivores, and they have been frequently referred to as the most prevalent herbivores in the Neotropics. However, most studies on leaf-cutter ants were conducted in lowland tropical rain forests. There is only limited knowledge of the foraging patterns of these ants in
Publicado em: 2007
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22. Filogeografia, diferenciação geográfica e caracterização citogenética de populações naturais de Psychotria ipecacuanha das florestas Atlântica e Amazônica / Phylogeography, geographic differentiation and cytogenetic characterization of natural populations of Psychotria ipecacuanha from the Atlantic and Amazon forests
Ipecac (Psychotria ipecacuanha) is a small perennial shrub, which grew abundantly under shady areas of tropical rain forests of Brazil. The species was employed by native Brazilians who taught the medicinal properties to European settlers. Ipecac roots have achieved worldwide usefulness as an expectorant, amoebicide, and vomitive agent because of its pharmac
Publicado em: 2007
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23. The humid tropical areas and the infectious hemorrhagic diseases: a geographical approach of the Earth environmental and the humanshealth / As áreas tropicais úmidas e as febres hemorrágicas virais: uma abordagem geográfica na área ambiental e na de saúde
Os ambientes terrestres têm sido gradativamente alterados pelo ser humano, mas a partir da Revolução Industrial, o homem começou a atuar de maneira mais intensa sobre o meio, fazendo com que as modificações ambientais tomassem proporções alarmantes, tanto em velocidade quanto em dimensão. As mudanças, como as climáticas, hídricas e biológicas, e
Publicado em: 2007
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24. Estrutura, diversidade e dispersão em Floresta Ombrófila Densa no Sul da Bahia, Brasil / Structure, diversity and dispersal of Dense Ombrophylous Forest at South of Bahia State, Brazil
The present study aimed to investigate the contribution of a primary remaining forest to biodiversity preservation face its comparison to a secondary forest; add information on Dense Ombrophylous Lowlands Forests at the south of Bahia State, Brazil, Atlantic forest; investigate the importance of zoochoric dispersion during the succession process in two tropi
Publicado em: 2007