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| Registros recuperados: 239 | |
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| Ballen,Gustavo A.; Pastana,Murilo N. L.; Peixoto,Luiz A. W.. |
| ABSTRACT A new species of Farlowella is described from eighteen specimens collected in the upper rio Xingu basin, Mato Grosso State, Brazil. The new species is a member of the Farlowella nattereri species-group and can be distinguished from other members of the group, with exception of Farlowella jauruensis , by exhibiting a proportionally shorter snout. The new species is distinguished from F. jauruensis by differences on the cleithrum and plate morphology, by counts of pelvic and caudal-fin rays, and by the color pattern of the snout. The discovery of new lots of F. jauruensis , a species so far known only from the holotype, is also herein reported. This discovery represents a considerable expansion of the geographic distribution and of the number of... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Amazon; Brazilian shield; Loricariinae; Neotropical fishes; Ostariophysi. |
| Ano: 2016 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252016000300215 |
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| Peres Filho, Otávio; Barbosa, Janaína Iris; Souza, Marcelo Dias de; Dorval, Alberto. |
| The objective of this study was to determine the flight height of species of Bostrichidae family, as well as determine the faunistic index of species collected in Tropical Semideciduous Forest, in the period to April of 2000 at March of 2001, in Maracaí farm, located in the municipality of Sinop, Mato Grosso, Brazil. Seven heights with 21 ethanolic traps were tested, with three traps by height. The bait used was the commercial alcohol and the collects were proceeded every fifteen days, and latter on monthly. The material collected was identified by comparison with specimens of the Forest Protection laboratory collection, from the Federal University of Mato Grosso. Were collected 141 individuals from five species: Bostrychopsis uncinata, Micrapate... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Woodborer; Powder beetles; Amazon; Flight height Coleobrocas; Besouros pulverizadores; Amazônia legal; Altura de voo. |
| Ano: 2012 |
URL: http://pfb.cnpf.embrapa.br/pfb/index.php/pfb/article/view/296 |
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| Lima, Rosival Barros de Andrade; Silva, José Antônio Aleixo da; Marangon, Luiz Carlos; Ferreira, Rinaldo Luiz Caraciolo; Silva, Roseane Karla Soares da. |
| O presente trabalho foi realizado em um trecho de Floresta Ombrofila Densa de Terras Baixas no Municipio de Carauari, Amazonas, tendo como objetivo estimar a composicao floristica do estrato arboreo e classificar as especies nos respectivos grupos ecologicos, a fim de se obter informacoes sobre a atual situacao do fragmento florestal, para embasar estrategias de conservacao e preservacao, bem como embasar a formulacao de pesquisas que visem a disseminacao do conhecimento e sua aplicacao na producao sustentavel. O inventario florestal foi realizado em uma area de 275 ha, cortada por tres transectos (822 m, 1.265 m e 2.349 m), totalizando 4.436 m. Foram instaladas parcelas de 20 m x 25 m, equidistantes a cada 50 m e intercaladas a direita e a esquerda da... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Amazon; Floristic; Ecological groups Amazônia; Florística Grupos; Ecológicos. |
| Ano: 2011 |
URL: http://pfb.cnpf.embrapa.br/pfb/index.php/pfb/article/view/261 |
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| Mello,Ramon Luciano de; Rodrigues,Paula Fernanda Motta; Lamas,Carlos José Einicker. |
| The Milichiidae family includes species of small acalyptratae flies distributed into 19 genera, over all biogeographic regions. The genus Leptometopa Becker, 1903, positioned among the Madizinae, is distributed worldwide. The genus is composed of 19 species, of which three are recorded for the Neotropical region: L. halteralis (Coquillett, 1900), L. latipes (Meigen, 1830) and L. niveipennis (Strobl, 1898). Studying material collected in a cave of Amazonas State, Brazil, the authors found a new species of Leptometopa which is described and illustrated herein. The new species L. veracildae n. sp. represents the first record of the genus in South America. An identification key for all Neotropical species is also presented. |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Madizinae; Microtomentum; Cave; Amazon; South America. |
| Ano: 2007 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0031-10492007002700001 |
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| Clarkson,Bruno; Almeida,Lúcia M.. |
| Abstract As an add-on to the work of Clarkson et al. (2016), new distributional data on species of Helobata Bergroth, 1888 (Hydrophilidae: Acidocerinae) from Brazil is provided. Helobata amazonensis Clarkson, Santos & Ferreira-Jr., 2016, is recorded for the first time for Roraima State and its female is recorded for the first time. Helobata quatipuru Fernández & Bachmann, 1987 and H. larvalis (Horn, 1873) are recorded for the first time for Minas Gerais, Cerrado Biome area. The genus is recorded for the first time for Goiás State. Additions and modifications in the previously published key to Brazilian species are provided. |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Acidocerinae; Amazon; Cerrado; Hydrophiloidea; Neotropical Region. |
| Ano: 2018 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0031-10492018000100233 |
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| Prado,Lívia Pires do; Feitosa,Rodrigo Machado; Triana,Stefania Pinzón; Gutiérrez,Jhonatan Andrés Muñoz; Rousseau,Guillaume Xavier; Silva,Raimunda Alves; Siqueira,Glécio Machado; Santos,Ciro Líbio Caldas dos; Silva,Francisco Veras; Silva,Thiago Sanches Ranzani da; Casadei-Ferreira,Alexandre; Silva,Rogério Rosa da; Andrade-Silva,Joudellys. |
| Abstract The state of Maranhão, located in northeastern Brazil, comprises three biomes: Amazonian, Caatinga, and the Cerrado. To date, 99 ant species have been recorded in the literature from the state. In the present work, we provide for the first time a profile of the ant fauna in the state based on data from the historical literature and Brazilian institutional collections. The updated records on ant diversity for the state of Maranhão revealed a total of 279 species, belonging to 71 genera and 10 subfamilies. In total, 180 species are recorded for the first time in the state, of which four species recorded for the first time in Brazil. In summary, apart from documenting the ant fauna of the region, these results provide a basis for further studies and... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Distribution; Amazon; Caatinga; Cerrado; Checklist. |
| Ano: 2019 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0031-10492019000100238 |
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| Tonini,Helio; Schwengber,Dalton Roberto; Morales,Marina Moura; Magalhães,Ciro Augusto de Souza; Oliveira,Jane Maria Franco de. |
| Abstract: The objective of this work was to assess the effect of spacing on the growth, biomass allocation, and wood quality for energy purposes of Acacia magium. A randomized complete block design was carried out with three replicates and five treatments consisting of trees planted at different spacings: 2.0x2.0, 2.5x2.5, 3.0x2.0, 3.0x2.5, and 3.0x3.0 m. At 67 months after planting, the following species parameters were evaluated: performance (mortality, diameter growth, height, bark factor, and bark and biomass volume yield) and wood energy quality (basic density, higher-calorific value, ash, fixed carbon, and volatile materials) through the analysis of variance. Plant spacing did not affect volume and biomass production per hectare nor wood quality for... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Amazon; Biomass accumulation; Energy productivity; Forest plantation; Roraima. |
| Ano: 2018 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2018000700791 |
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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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| Oliveira, Samuel Jose de Magalhaes; Valentim, Judson Ferreira; Barioni, Luis Gustavo; Abreu, Urbano G.P.; Rostand, Andre Ramalho. |
| O estado de Rondônia, que se localiza na Amazônia brasileira, testemunha o debate entre a preservação ambiental e a expansão da fronteira agrícola brasileira. Este trabalho visa contribuir com este debate identificando a relação entre desmatamento e variáveis indicativas do uso de solo, tais como a área plantada com as principais culturas, o rebanho bovino e as taxas de variação destas entre 2001 e 2006 em cada município do estado. A dinâmica do uso do solo no estado é ilustrada com mapas e através da apresentação de matriz de correlação entre as diferentes variáveis acima citadas e o desmatamento. É alta a correlação entre área total desmatada e efetivo do rebanho bovino, mas não se observa correlação entre desmatamento acumulado e evolução do efetivo em... |
| Tipo: Conference Paper or Presentation |
Palavras-chave: Desmatamento; Pecuária; Amazônia; Agricultura; Meio-ambiente; Deforestation; Cattle ranching; Amazon; Agriculture; Environment; Livestock Production/Industries. |
| Ano: 2008 |
URL: http://purl.umn.edu/110030 |
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| Santana, Antonio Cordeiro de. |
| The objective of this paper was to determine and analyze the main competitive performance indicators of the pulp producing agro-industries of the local tropical fruits’ agricluster of the Metropolitan Region of Belém and Northeast of Pará. The competitive performance was evaluated by using ex-ante and ex-post indicators of the existing industrial organization. The results showed that the firms are operating with multiple objectives and most of them are obtaining significant indicators showing an increase in the productive capacity, profit’s margins, market share and employment. Finally, it is concluded that the firms of the fruits’ cluster are competitive at the local, national and international markets of pulp’s mix, composed by Amazon’s fruits and other... |
| Tipo: Journal Article |
Palavras-chave: Agro-industry; Competitiveness; Tropical fruits; Amazon; Agribusiness. |
| Ano: 2004 |
URL: http://purl.umn.edu/56772 |
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| Casey, James F.; Caviglia-Harris, Jill L.. |
| The adoption of sustainable agriculture and other sustainable forestry methods that can help to reduce tropical deforestation have received a great deal of attention in the literature (Adesina and Zinnah 1993, Akinola and Young 1985, Feder and Slade 1984, Holden 1993, Kebede et al. 1990). Although results from different studies can be compared in an absolute sense, there are very few individual studies that compare results and determine, through empirical analysis, whether policy can be universally applied. This paper uses farm-level data to determine whether some universal conclusions can be drawn about the adoption of agroforestry by peasant farmers in developing countries by comparing the land use choices of farmers in Rondônia, Brazil and Campeche,... |
| Tipo: Conference Paper or Presentation |
Palavras-chave: Brazil; Mexico; Agroforestry; Tropical Deforestation; Sustainable Agriculture; Adoption; Amazon; Campeche; Rondonia; Resource /Energy Economics and Policy. |
| Ano: 2000 |
URL: http://purl.umn.edu/36466 |
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| Siviero, Amauri; Abreu, Lucimar Santiago; Mendes, Roberval; Gomes, Francisco Carlos Rocha. |
| O crescimento na produção de alimentos agroecológicos no Brasil e no mundo tem sido provocado por fatores chaves como, demanda dos consumidores urbanos e a crescente consciência da sociedade sobre os problemas ambientais decorrentes do uso inadequado dos recursos naturais, e em especial pelas preocupações dos indivíduos com a saúde. A tendência atual para o produto agroecológico em termos de mercado é de ampliar as vendas e a distribuição deixando de atender somente o mercado de nicho direcionando a produção para diversos mercados. Atualmente os produtos agroecológicos podem ser encontrados tanto em lojas secundárias, feiras livres, supermercados como até podem ser recebidos em cestas a domicilio, ou seja, as vendas podem atingir o mercado de massa. O... |
| Tipo: Conference Paper or Presentation |
Palavras-chave: Agroecologia; Consumidores; Venda direta; Amazônia; Agriculture organic; Sustainable consumption; Selling direct; Amazon; Farm Management. |
| Ano: 2008 |
URL: http://purl.umn.edu/109586 |
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| Franke, Idesio Luis; Alves, Isabel Teresa Gama; Sa, Claudenor Pinho De; Santos, Jair Carvalho Dos; Valentim, Judson Ferreira. |
| O assentamento agrícola de centenas de milhares de famílias na Amazônia gerou problemas ambientais e socioeconômicos significativos na região. Em 1984 foi implantado pelo Instituto nacional de Colonização e Reforma Agrária (INCRA) o Projeto de Assentamento Agrícola do Alto Madeira, em Vila Nova Califórnia-RO, divisa com o Estado do Acre. A partir de 1988, algumas lideranças rurais e produtores do assentamento resolvem priorizar o uso alternativo da terra com Sistemas Agroflorestais – SAFs, tendo como base o consórcio de culturas perenes regionais (cupuaçu, pupunha, castanha-do-brasil) e café, e formaram a Associação de Pequenos Agrosilvicultores do Projeto de Reflorestamento Econômico Consorciado e Adensado, que passou a ser conhecida como Projeto RECA.... |
| Tipo: Conference Paper or Presentation |
Palavras-chave: Sistemas Agroflorestais; Amazônia; Socioeconomia; RECA; Agroforestry Systems; Amazon; Socioeconomy; RECA; Farm Management. |
| Ano: 2008 |
URL: http://purl.umn.edu/109629 |
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| Cavalcanti, Francisco Carlos Da Silveira; Maciel, Raimundo Claudio Gomes; Mangabeira, Joao Alfredo De Carvalho; Reydon, Bastiaan Philip. |
| As Reservas Extrativistas (RESEX) são áreas de domínio público, com uso concedido às populações extrativistas tradicionais, cuja subsistência baseia-se no extrativismo e na agricultura de subsistência e na criação de animais de pequeno porte, e têm como objetivos básicos proteger os meios de vida e a cultura dessas populações, e assegurar o uso sustentável dos recursos naturais da unidade. Porém, o aumento da área para agropecuária dentro das reservas vem aumentando e, assim, o desmatamento. O presente estudo tem como objetivo promover uma reflexão sobre a regulamentação ambiental e suas conseqüências, bem como sobre a organização popular como instrumento capaz de deter o desmatamento na Amazônia. Neste sentido, as RESEX, resultado da luta política e... |
| Tipo: Conference Paper or Presentation |
Palavras-chave: Sustentabilidade; Reservas Extrativistas; Economia Ecológica; Amazônia; Regulamentação ambiental; Sustainability; Extractivist Reserves; Ecological Economics; Amazon; Environmental regulation; Resource /Energy Economics and Policy. |
| Ano: 2008 |
URL: http://purl.umn.edu/113395 |
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| Registros recuperados: 239 | |
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