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| Registros recuperados: 34 | |
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| Magalhães,Célio; Barbosa,Ulysses C.; Py-Daniel,Victor. |
| The Yanomami are a group of South American Indians that live in the rainforest along the borderlands of Brazil and Venezuela. They depend on hunting, gardening and wild food for survival; crustaceans are a highly prized food item in their diet. Taxonomical and ethnozoological aspects of the Yanomami Indians of the Balawa-ú village, state of Amazonas, Brazil, related to the crustaceans are described. Information and specimens were obtained from August to December, 2003. Interviews were conducted with residents of the village and focused on questions about species exploited, indigenous names, modes of capture and use of the species. One shrimp species of the family Palaemonidae (Macrobrachium brasiliense) and two crab species of Trichodactylidae... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Ethnozoology; Yanomami Indians; Amazon region; Freshwater decapod; Indigenous name. |
| Ano: 2006 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0044-59672006000300013 |
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| SILVA,MARCIO S. DA; GUIMARÃES,JOSÉ T.F.; SOUZA FILHO,PEDRO W.M.; NASCIMENTO JÚNIOR,WILSON; SAHOO,PRAFULLA K.; COSTA,FRANCISCO R. DA; SILVA JÚNIOR,RENATO O.; RODRIGUES,TARCÍSIO M.; COSTA,MARLENE F. DA. |
| ABSTRACT High-resolution satellite images, digital elevation models, bathymetric and sedimentological surveys coupled with statistical analysis were used to understand the physical environment and discuss their influence on water quality of the five upland lakes of Serra Sul dos Carajás, southeast Amazonia. The lakes have mid-altitude ranges (elevation), very small (catchment) and shallow to very shallow (central basins). Based on the length, area and volume, Violão and TI (Três Irmãs)-3 lakes may present large vertical movements of the water due to wind action and weakly stratified waters. Trophic conditions based on depth and shore development (Ld) parameters must be used with caution, since Amendoim Lake is relatively deep, but it is oligotrophic to... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Lateritic crust; Lakes; Limnology; Geomorphology; Amazon region; Carajás. |
| Ano: 2018 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652018000401309 |
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| PONZONI,FLÁVIO J.; GALVÃO,LÊNIO S.; EPIPHANIO,JOSÉ C.N.. |
| To evaluate the role played by the spatial resolution in distinguishing land cover classes in the Amazon region, different levels of spatial resolution (60, 100, 120, 200 and 250 meters) were simulated from a Landsat_5 Thematic Mapper (TM) image. Thematic maps were produced by visual interpretation from the original (30 x 30 meters) and simulated set of images. The map legend included primary forest, old and young woody secondary succession, and non-forest. The results indicated that for the discrimination between primary forest and non-forest, spatial resolution did not have great influence for pixel size equal or lower than 200 meters. The contrary was verified for the identification of old and young woody secondary vegetation due to their occurrence in... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Spatial resolution; Remote sensing; Amazon region; Thematic maps; Tropical rain forest. |
| Ano: 2002 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652002000400011 |
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| Lopes,Elessandra Laura Nogueira; Fernandes,Antonio Rodrigues; Teixeira,Renato Alves; Sousa,Edna Santos de; Ruivo,Maria de Lourdes Pinheiro. |
| AbstractSoil biological properties have a high potential for use in assessing the impacts of crop systems. The objective of this study is to evaluate the effects of cropping systems on the biological attributes of an oxisol in the Amazonian state of Pará. The treatments consisted of approximately 20-year-old secondary vegetation, recovered pasture, no-tillage systems (NT) maintained for 4 and 8 years after planting with corn (Zea mays L.) and soybean (Glycine max L.), and conventional tillage (CT) systems every 2 years after planting with rice (Oryza sativa L.) and soybean. The microbial biomass to nitrogen ratio was higher in the NT system (0.68 mg kg–1), and the NT system had greater microbial NT8. Thus, the contributions of organic matter from straw... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Carbon stock; No-tillage; Oryza sativa; Glycine max; Zea mays; Amazon region. |
| Ano: 2015 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0006-87052015000400428 |
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| Araújo,F.G. de; Novaes,F.C.; Santos,N.P.C. dos; Martins,V.C.; Souza,S.M. de; Santos,S.E.B. dos; Ribeiro-dos-Santos,A.K.C.. |
| Cystic fibrosis (CF) is the most common genetic disease among Caucasians and is rare among sub-Saharan Africans. The Brazilian population is not ethnically homogeneous but it is the result of three-way ethnic admixture of Europeans, Africans and Amerindians in varying proportions, depending on the region. In the present study, we investigated 33 patients who had been diagnosed and are currently under treatment for CF at the University Hospital João de Barros Barreto, Belém, Pará State. The molecular analysis for G542X, G551D and R553X mutations was performed by PCR followed by RFLP using BstNI, HincII and MboI, respectively, in polyacrylamide gel eletrophoresis and stained with AgNO3. ThedeltaF508 mutation (a deletion of 3 bp) was only analyzed by... |
| Tipo: Info:eu-repo/semantics/other |
Palavras-chave: Cystic fibrosis; Gene mutations; Amazon region; Belém; DeltaF508 gene; G551D gene. |
| Ano: 2005 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2005000100003 |
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| Mazzetto,Andre Mancebo; Feigl,Brigitte Josefine; Cerri,Carlos Eduardo Pellegrino; Cerri,Carlos Clemente. |
| Abstract Land use changes strongly impact soil functions, particularly microbial biomass diversity and activity. We hypothesized that the catabolic respiration response of the microbial biomass would differ depending on land use and that these differences would be consistent at the landscape scale. In the present study, we analyzed the catabolic response profile of the soil microbial biomass through substrate-induced respiration in different land uses over a wide geographical range in Mato Grosso and Rondônia state (Southwest Amazon region). We analyzed the differences among native areas, pastures and crop areas and within each land use and examined only native areas (Forest, Dense Cerrado and Cerrado), pastures (Nominal, Degraded and Improved) and crop... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Amazon region; Land use change; Catabolic profile; Microbial communities. |
| Ano: 2016 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822016000100063 |
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| Registros recuperados: 34 | |
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