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| Registros recuperados: 239 | |
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| Aguiar,Daniel M.; Cavalcante,Guacyara T.; Camargo,Luis M. A.; Labruna,Marcelo B.; Vasconcellos,Silvio A.; Souza,Gisele O.; Gennari,Solange M.. |
| Sera from 276 humans living in 71 farms located in Monte Negro Municipality, RO., Western Amazon, Brazil were examined for anti-Leptospira spp antibodies by Microscopic Agglutination Test and for anti-Brucella spp antibodies by Tube Agglutination Test. Leptospira spp antibodies were detected in 28 (10.2%) of them with at least one positive case in 23 farms (32.4%). The most frequent leptospira serovars were Patoc (46.7%), Autumnalis (10.0%) and Shermani (10.0%). The proportion of positive males (14.5%) were higher than females (5.0%; P <0.05) and the contact with river water presented association with Leptospira spp infection (OR: 27; P=0.01). A total of 04 (1.4%) humans reacted against Brucella antigens; three farms (4.2%) presented at least one... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Human; Leptospirosis; Brucellosis; Amazon; Brazil. |
| Ano: 2007 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822007000100019 |
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| HARADA,Ana Yoshi; ADIS,Joachim. |
| Canopies of the locally occurring Amazonian tree species Calophyllum brasiliense. Camb. (Guttiferae, height 10 m) were fogged after dawn on the same day at five adjacent localities in a 20-year-old plantation at the Adolpho Ducke Forest Reserve near Manaus/Brazil, using natural pyrethrum (0.5%, 1.0%, 1.5%), Baythroid (0.3%) and diesel oil, respectively. The 1152 ants collected represented 52 species, 17 genera and five subfamilies. The highest number of ant species was obtained with the synthetic pyrethrum Baythroid 0.3% and with natural pyrethrum 1.5%. About 46% of the total ant species were only collected in the first hour after fogging, and 17% only during the second hour, after trees had been heavily shaken. About 73% of the total ant specimens dropped... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Ants; Canopy fogging; Pyrethrum; Forest plantation; Amazon; Neotropics. |
| Ano: 1998 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0044-59671998000300309 |
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| Teston,José Augusto; Ferro,Viviane Gianluppi. |
| Abstract: The Euchromiina moths comprise 735 species in the neotropics. Here we provide a list of Euchromiina species from the Brazilian Amazon. The list was produced from specimens deposited in the most important Brazilian collections and from literature data. Nearly 30% (219) of the neotropics Euchromiina species were recorded, including 13 new occurrences for the Brazilian Amazon. Santarém and Belém were the municipalities with the highest number of species records, with 96 and 74, respectively. Although the number of Euchromiina records is high in the Amazon, this value is underestimated because the fauna was never sampled in the vast majority of the biome. This is a worrying scenario because the Amazon has the world highest absolute rate of forest... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Amazon; Tiger moths; Inventory; Noctuoidea; Wasp Moths. |
| Ano: 2019 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032019000400309 |
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| Moraes,Larissa Alexandra Cardoso; Moreira,Adônis; Fontes,José Roberto Antoniol; Cordeiro,Everton Rabelo; Moraes,Vicente Haroldo de Figueiredo. |
| The objective of this work was to assess the performance of panel clones under crowns resistant to South American leaf blight (Microcyclus ulei). The experiment was carried out with 18 panel clones crown-budded with Hevea pauciflora x H. guianensis, in a Xanthic Ferralsol (Oxisol) in Manaus, AM, Brazil. The following parameters were evaluated: dry rubber yield, plant nutritional status, and anatomical and physiological characteristics of the latex vessels. In the first three years of evaluation, the panel clones IAN 2878, IAN 2903, CNS AM 7905, CNS AM 7905 P1, and PB 28/59 showed the highest dry rubber yield potential, while the clones IAN 6158, IAN 6590, and IAN 6515 should not be recommended for crown budding. Higher potassium and copper foliar content... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Hevea; Microcyclus ulei; Amazon; Crown budding; Nutritional status. |
| Ano: 2011 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2011000500003 |
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| van Vliet, Nathalie; Center for International Forestry Research (CIFOR); vanvlietnathalie@yahoo.com; Schor, Tatiana; Geography Department, Universidade Federal do Amazonas; tschor@ufam.edu.br; Tellez, Leady; Independent consultant; leadyjot@hotmail.com. |
| Wild meat is critical for the food security and income of millions of people, especially for poor rural households. Its role as a primary source of macronutrients worldwide has been recognized, but there have been few attempts to evaluate the contribution of bushmeat consumption to micronutrient intake. This is so particularly in the context of nutritional transitions induced by modernization and globalization. Here, we calculated the role of bushmeat as a source of micronutrients in the diets of urban and peri-urban inhabitants within the Tres Fronteras (Peru, Brazil, Colombia) region in the Amazon. We gathered food intake data from 35 households using 3-day 24-h food recalls combined with food weighing. Additionally, we interviewed 105 households on food... |
| Tipo: Peer-Reviewed Reports |
Palavras-chave: Amazon; Bushmeat; Conservation; Food intake; Micronutrients; Nutrition. |
| Ano: 2015 |
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| CARVALHO,RAQUEL; WEBBER,ANTONIO C.. |
| A biologia floral e a polinização por abelhas Euglossini de uma Annonaceae é descrita pela primeira vez e as adaptações a esse modo de polinização são comparadas às de outras espécies da família, que é predominantemente polinizada por coleópteros. A espécie Unonopsis guatterioides foi estudada em dois fragmentos de mata de terra firme no município de Manaus (AM). As flores são protogínicas e permanecem abertas expondo os estigmas e estames durante a antese que ocorre entre dois dias. São visitadas por machos de Eulaema bombiformis (Euglossini) que coletam o odor o qual se assemelha ao de "capim cidreira" (Andropogum nardus L.). Visitas de abelhas Meliponidae e coleópteros Chrysomelidae também foram registradas. Unonopsis guatterioides apresenta dicogamia... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Annonaceae; Floral biology; Pollination; Euglossini; Amazon. |
| Ano: 2000 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-84042000000400008 |
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| Aschenbroich, Adelaide; Michaud, Emma; Stieglitz, Thomas; Fromard, Francois; Gardel, Antoine; Tavares, Marcos; Thouzeau, Gerard. |
| This study in French Guiana evaluates the changes of crab assemblages and their bioturbation activities between mangrove early stages (pioneer and young mangrove) and within stages by taking their spatial heterogeneity (tidal channels, flat areas, pools) into account. The results show differences in crab assemblage structure between and within the early stages of mangrove in relation to microhabitat and sediment characteristics. The sediment reworking rates are a function of the biomass or density of particular species (Ucides cordatus, Uca cumulanta) and burrower functional groups. Crab species or functional interaction mediate changes in sediment reworking rates suggesting the need to consider entire benthic communities rather than single species. This... |
| Tipo: Text |
Palavras-chave: Mangroves; Crabs; Community composition; Bioturbation; French Guiana; Amazon. |
| Ano: 2016 |
URL: https://archimer.ifremer.fr/doc/00350/46154/45852.pdf |
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| Brito,Eliete da Silva; Ilkiu-Borges,Anna Luiza. |
| This study aims to investigate the richness and ecological aspects (ecosystem and substrate) of mosses and liverworts at two municipalities on Marajó Island, in the state of Pará, Brazil. The study area (6615 km²) encompasses the municipalities of Soure and Cachoeira do Arari. Bryophytes were collected from the 10th to the 16th of January, 2007, during random visits along existing trails or during the forging of new trails, from all possible types of vegetation, regardless of the type of substrate. The ecosystems visited in the study area were capoeira (secondary vegetation, growing on land that has been burned or cleared), teso (vegetation growing on areas of land at an elevation slightly higher than the water line during flood season), floodplain forest,... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Bryophyta; Marchantiophyta; Bryophytes; Amazon; Neotropics. |
| Ano: 2013 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062013000100013 |
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| Collen, Wain; International Institute for Industrial Environmental Economics (IIIEE), Lund University; PlanJunto; wain.collen@planjunto.ec; Krause, Torsten; Lund University Centre for Sustainability Studies; torsten.krause@lucsus.lu.se; Mundaca, Luis; International Institute for Industrial Environmental Economics (IIIEE), Lund University; luis.mundaca@iiiee.lu.se; Nicholas, Kimberly A.; Lund University Centre for Sustainability Studies; kimberly.nicholas.academic@gmail.com. |
| For programs that aim to promote forest conservation and poverty alleviation, such as Reducing Emissions from Deforestation and Forest Degradation (REDD+), the participation of indigenous communities is essential to meet program goals. Using Ostrom's theory of collective action for common pool resource management, we evaluated the institutions governing indigenous participation in the Programa Socio Bosque incentive-based conservation program in Ecuador. We conducted structured interviews with 94 members in 4 communities to assess community institutions for 6 of Ostrom's principles, using 12 measures we developed for the principles. We found substantial variation between communities in terms of their institutional performance. The best-performing community... |
| Tipo: Peer-Reviewed Reports |
Palavras-chave: Amazon; Common pool resource (CPR); Forest governance; Forest policy; Socio Bosque. |
| Ano: 2016 |
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| van Vliet, Nathalie; Center for International Forestry Research; vanvlietnathalie@yahoo.com; Jonhson Neves de Aquino, Lindon; Universidade Federal do Amazonas; lj.aquino@bol.com.br; Schor, Tatiana; Geography Department, Federal University of Amazonas; NEPECAB; tatiana.schor@gmail.com; Hernandez, Sara; Independent Expert in Environmental Economics; sarah-hernandez-p@hotmail.com; Nasi, Robert; Center for International Forestry Research; r.nasi@cgiar.org. |
| Recent studies have intended to quantify urban consumption and trade in Amazonian towns. However, little is still known about the different ways in which bushmeat is made available in urban areas, including commercial and noncommercial flows, and how those flows contribute to link forests to urban livelihoods. In this study we qualitatively describe the structure and functioning of bushmeat flows in terms of species, catchment area, stakeholders involved, and the motivations for their activity in the main towns of the Amazon trifrontier region between Brazil, Colombia, and Peru. We show that bushmeat trade to urban areas exists under an organized but invisible commodity chain providing a source of income to about 195 persons. Bushmeat is made available... |
| Tipo: Peer-Reviewed Reports |
Palavras-chave: Amazon; Bushmeat; Exchange networks; Indigenous people; Trade; Urban areas. |
| Ano: 2015 |
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| Chagas Junior, Aloisio Freitas; Universidade Federal do Tocantins; Oliveira, Luiz Antonio de; Intituto Nacional de Pesquisas da Amazônia; Oliveira, Arlem Nascimento de; Universidade Federal do Amazonas, Manaus; Willerding, André Luiz; Centro de Biotecnologia da Amazônia. |
| Em solos com baixa disponibilidade de fósforo, como os de terra firme da Amazônia, a habilidade de estirpes de rizóbio de solubilizar compostos de fosfato inorgânico é extremamente importante. Assim, o objetivo deste trabalho foi determinar a capacidade de solubilização de fosfato de cálcio (P-Ca) e fosfato de alumínio (P-Al) de isolados de rizóbio de solos na Amazônia em laboratório e a eficiência simbiótica dos isolados em aumentar os conteúdos de N e P em caupi. Os isolados de rizóbio foram avaliados em meios específicos para solubilização desses fosfatos por um período de 15 dias, obtendo-se os seus índices de solubilização (I.S.). Dos 205 isolados avaliados, 68 solubilizaram P-Ca, 47 solubilizaram P-Al e 32 solubilizaram tanto P–Ca quanto P–Al. Entre... |
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Palavras-chave: 5.01.02.04-4 Fósforo; Amazônia; Ecologia microbiana Microbiologia e bioquímica do solo Phosphorus; Amazon; Microbial ecology. |
| Ano: 2010 |
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/3185 |
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| Sarmento-Soares,Luisa Maria; Cabeceira,Fernando G.; Carvalho,Lucélia Nobre; Zuanon,Jansen; Akama,Alberto. |
| Centromochlus actually comprises eleven species, being the most problematic genus among the Centromochlinae, including morphologically heterogeneous taxa. The Centromochlus species have a wide distributional area on northern South America. Centromochlus meridionalis, new species, is described from headwaters of rio Teles Pires, contributor of rio Tapajós, Mato Grosso State, Brazil, and represents one of the southernmost records of a centromochlin catfish for Meridional Amazon rivers. Centromochlus meridionalis is promptly distinguished from its congeners by the small orbital diameter (relative to head length), and also by the combination of absence of first nuchal plate, anterior margin of dorsal-fin spine smooth, six branched rays in anal fin, seven pairs... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Amazon; Centromochlinae; Forest streams; Taxonomy; Teles Pires. |
| Ano: 2013 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252013000400797 |
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| CHALITA,Patrícia Bombonati; FARIAS,Eliane do Nascimento Cunha; COSTA,Ismaele Breckenfeld da; SOUSA,Brenda Ferreira; SANTOS,Marco Antônio Oliveira dos; ALBUQUERQUE,Teresinha Costa Silveira de; VITAL,Marcos José Salgado; SILVA,Krisle da. |
| ABSTRACT Brazil nut is a very important nontimber forest product in the Amazon region. Propagation of this tree still represents a challenge due to slow and uneven seed germination. In this context, plant growth-promoting bacteria can facilitate the process of propagation. The aims of this study were to isolate and characterize endophytic bacteria from the roots of Brazil nut trees in native terra firme forest and cultivation areas in northern Brazil, and to identify mechanisms by which bacteria act in plant growth promotion. Overall, 90 bacterial isolates were obtained from the roots of Brazil nut trees in monoculture, agroforestry and native forest areas by using different semisolid media. The isolates were characterized by sequencing the 16S rRNA gene.... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: 16S rRNA; Phosphate solubilization; Indole compounds; Biological nitrogen fixation; Plant growth-promotion bacteria; Amazon. |
| Ano: 2019 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0044-59672019000400257 |
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| SOUMIS,Nicolas; ROULET,Marc; LUCOTTE,Marc. |
| Many potentially harmful pesticides for both human health and the environment are used in Brazilian Amazon. However, no scientific datum on pesticide usage is presently available for this region. Consequently, it is difficult to assess which substances arc used and in which quantities. As an important premise for future work on pesticide contamination in the county of Santarém (State of Pará, Brazil), a survey was conducted in order to qualify and quantify the use of some pesticides in this region. This investigation was made between January and March 1997 and August and October 1998 and revealed use of several organophosphates, synthetic pyrethroids and carbamates insecticides. Furthermore, many herbicides and fungicides were listed. These pesticides are... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Amazon; Pesticides; Consumption; Utilization. |
| Ano: 2000 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0044-59672000000400615 |
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| BATISTA,Vandick da Silva; PETRERE JÚNIOR,Miguel. |
| The present work aims to update a series of information about the regional fishing production, by presenting and characterizing the contribution of the different sub-systems of the Amazon basin to the catch landed at the main fishing market of Manaus, Brazil, from 1994 to 1996. Collectors specifically hired for this function registered key information on the fisheries. Thirty nine types or groups of fish were found in the fishing production landed. Jaraqui (Semaprochilodus spp.), curimatã (Prochilodus nigricans), pacu (Myleinae), matrinchã (Brycon cephalus), sardine (Triportheus spp.), aracu (Anostomidae) and tambaqui (Colossoma macropomum) were the most important items during three consecutive years. In 1994 these items summed up 91.6% of the total... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Fish; Fisheries; Amazon; Production. |
| Ano: 2003 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0044-59672003000100053 |
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| Registros recuperados: 239 | |
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