Mostrando 661 - 680 Resultados de 4,605 Para Buscar '"Amazon"', tiempo de consulta: 0.38s Limitar resultados
  1. 661
    “…Canopy gaps created by wind-throw events, or blowdowns, create a complex mosaic of forest patches varying in disturbance intensity and recovery in the Central Amazon. Using field and remote sensing data, we investigated the short-term (four-year) effects of large (>2000 m(2)) blowdown gaps created during a single storm event in January 2005 near Manaus, Brazil, to study (i) how forest structure and composition vary with disturbance gradients and (ii) whether tree diversity is promoted by niche differentiation related to wind-throw events at the landscape scale. …”
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  2. 662
  3. 663
    “…Cytogenetic studies were carried out on samples of Parapteronotus hasemani, Sternarchogiton preto and Sternarchorhamphus muelleri (Apteronotidae, Gymnotiformes) from the Amazon basin. The first two species exhibited both a 2n = 52 karyotype, but differed in their karyotypic formulae, distribution of constitutive heterochromatin, and chromosomal location of the NOR. …”
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  4. 664
    “…METHODOLOGY/PRINCIPAL FINDINGS: A nested cross-sectional survey was conducted in 12 and 13-month old children participating in a deworming trial in Iquitos, an STH-endemic area of the Peruvian Amazon. An extensive socio-demo-epi questionnaire was administered to the child's parent. …”
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  5. 665
  6. 666
    “…Popularly known as pencilfishes the vast majority of these species lives in the flooded forests of the Amazon basin and are popular in the ornamental trade. …”
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  7. 667
  8. 668
  9. 669
    “…CONCLUSIONS: Because larges barges provide suitable mosquito habitats (due to dark, damp cargo storage spaces and ample oviposition sites), we conclude that they likely serve as significant contributors to mosquitoes’ propagule pressure across long distances throughout the Peruvian Amazon. This information can help anticipate vector population mixing and future range expansions of dengue and other viruses transmitted by Ae. aegypti.…”
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  10. 670
    “…Conclusions The pathophysiological effects of chronic exposure may be subtle and nonspecific and can have a long period of latency; therefore, it will be important to monitor the effects of mercury exposure in the central auditory system of the Amazon population over time. Longitudinal studies should be performed to determine whether the inhibitory effect of the MOCS on otoacoustic emissions can be an evaluation method and diagnostic tool in populations exposed to mercury.…”
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  11. 671
    “…In particular, the study of the Amazon forest responses to drought have recently received attention by the scientific community due to the occurrence of two extreme droughts and sustained warming over the last decade. …”
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  12. 672
    “…Anthracnose is a disease caused by Colletotrichum spp., a phytopathogen that can infect guarana (Paullinia cupana), an important commercial crop in the Brazilian Amazon. We investigated the diversity of endophytic bacteria inhabiting the phyllosphere of asymptomatic and symptomatic anthracnose guarana plants. …”
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  13. 673
  14. 674
    por Mitchard, Edward T A, Feldpausch, Ted R, Brienen, Roel J W, Lopez-Gonzalez, Gabriela, Monteagudo, Abel, Baker, Timothy R, Lewis, Simon L, Lloyd, Jon, Quesada, Carlos A, Gloor, Manuel, ter Steege, Hans, Meir, Patrick, Alvarez, Esteban, Araujo-Murakami, Alejandro, Aragão, Luiz E O C, Arroyo, Luzmila, Aymard, Gerardo, Banki, Olaf, Bonal, Damien, Brown, Sandra, Brown, Foster I, Cerón, Carlos E, Chama Moscoso, Victor, Chave, Jerome, Comiskey, James A, Cornejo, Fernando, Corrales Medina, Massiel, Da Costa, Lola, Costa, Flavia R C, Di Fiore, Anthony, Domingues, Tomas F, Erwin, Terry L, Frederickson, Todd, Higuchi, Niro, Honorio Coronado, Euridice N, Killeen, Tim J, Laurance, William F, Levis, Carolina, Magnusson, William E, Marimon, Beatriz S, Marimon Junior, Ben Hur, Mendoza Polo, Irina, Mishra, Piyush, Nascimento, Marcelo T, Neill, David, Núñez Vargas, Mario P, Palacios, Walter A, Parada, Alexander, Pardo Molina, Guido, Peña-Claros, Marielos, Pitman, Nigel, Peres, Carlos A, Poorter, Lourens, Prieto, Adriana, Ramirez-Angulo, Hirma, Restrepo Correa, Zorayda, Roopsind, Anand, Roucoux, Katherine H, Rudas, Agustin, Salomão, Rafael P, Schietti, Juliana, Silveira, Marcos, de Souza, Priscila F, Steininger, Marc K, Stropp, Juliana, Terborgh, John, Thomas, Raquel, Toledo, Marisol, Torres-Lezama, Armando, van Andel, Tinde R, van der Heijden, Geertje M F, Vieira, Ima C G, Vieira, Simone, Vilanova-Torre, Emilio, Vos, Vincent A, Wang, Ophelia, Zartman, Charles E, Malhi, Yadvinder, Phillips, Oliver L
    Publicado 2014
    “…RESULTS: The two RS carbon maps fail to capture the main gradient in Amazon forest carbon detected using 413 ground plots, from the densely wooded tall forests of the north-east, to the light-wooded, shorter forests of the south-west. …”
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  15. 675
    “…It was isolated repeatedly using samples of nut shells and flowers from the brazil nut tree, Bertolletia excelsa, as well as bees and ants from the tree ecosystem in the Amazon rainforest. The species produces andrastin A, curvulic acid, penicillic acid and xanthoepocin, and has unique partial β-tubulin and calmodulin gene sequences. …”
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  16. 676
  17. 677
    “…Outsiders often oversimplify Amazon soil use by assuming that abundantly available natural soils are poorly suited to agriculture and that sporadic anthropogenic soils are agriculturally productive. …”
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  18. 678
    “…We analyzed the HLA-DRB1*04 alleles to identify subtypes associated with pulmonary TB and their interaction with risk factors such as alcohol, smoking, and gender in 316 pulmonary TB patients and 306 healthy individuals from the Brazilian Amazon. The HLA-DRB1*04 was prevalent in patients with pulmonary TB (p<0.0001; OR = 2.94; 95% CI = 2.12 to 4.08). …”
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  19. 679
  20. 680
    “…This paper aims to describe the spatial-temporal variability in catch of the main fishery resources of the Amazon River and floodplain lakes of the Lower Amazon, as well as relating the Catch per Unit of Effort with anomalies of some of the Amazon River, atmosphere and Atlantic Ocean system variables, determining the influence of the environment on the Amazonian fishery resources. …”
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