Ir direto para menu de acessibilidade.
Portal do Governo Brasileiro
Home > PublicaçõesPage 113

Publicações

More results...

Generic selectors
Exact matches only
Search in title
Search in content
Post Type Selectors
publicacao
Destaque
noticias
Uncategorized

Assessing mammal exposure to climate change in the Brazilian Amazon

Human-induced climate change is considered a conspicuous threat to biodiversity in the 21st century. Species' response to climate change depends on their exposition, sensitivity and ability to adapt to novel climates. Exposure to climate change is however uneven within species' range, so that some p...
  • por Portal Padrão
  • publicado
  • 20/11/2016
  • 4:08 PM

Waterfall project: sport, science and society coming together.

...
  • por Portal Padrão
  • publicado
  • 20/11/2016
  • 4:03 PM

Assessment of two techniques to merge ground-based and TRMM rainfall measurements: a case study about Brazilian Amazon Rainforest

The availability of accurate rainfall data with high spatial resolution, especially in vast watersheds with low density of ground-measurements, is critical for planning and management of water resources and can increase the quality of the hydrological modeling predictions. In this study, we used two...
  • por Portal Padrão
  • publicado
  • 20/11/2016
  • 3:49 PM

Mercury biomagnification and the trophic structure of the ichthyofauna from a remote lake in the Brazilian Amazon

The present study assesses mercury biomagnification and the trophic structure of the ichthyofauna from the Puruzinho Lake, Brazilian Amazon. In addition to mercury determination, the investigation comprised the calculation of Trophic Magnification Factor (TMF) and Trophic Magnification Slope (TMS), ...
  • por Portal Padrão
  • publicado
  • 20/11/2016
  • 2:01 PM

Crescimento de cana-de-açúcar sob aplicação de biofertilizante da bovinocultura e ureia

Effluents from intensive cattle breeding and treated with anaerobic reactors are highly relevant for agricultural reuse. Current paper assesses the growth of sugarcane cultivars SP 803280 and RB 867515 for 220 days. Doses 0, 16, 48, 64, 80 and 96 kg ha-1 N were applied derived from biofertilizing so...
  • por Portal Padrão
  • publicado
  • 20/10/2016
  • 3:51 PM

Canopy-scale biophysical controls of transpiration and evaporation in the Amazon Basin

Canopy and aerodynamic conductances (gC and gA) are two of the key land surface biophysical variables that control the land surface response of land surface schemes in climate models. Their representation is crucial for predicting transpiration (λET) and evaporation (λEE) flux components of the te...
  • por Portal Padrão
  • publicado
  • 20/10/2016
  • 3:39 PM

Development and evaluation of species distribution models for five endangered elasmobranchs in southwestern Atlantic

Species distribution models (SDMs) are tools to obtain habitat suitability maps based on historical species occurrences and environmental variables. Those maps can be used to restrict fishing grounds or to assist in planning and reserve selection. This is especially important for species at risk of ...
  • por Portal Padrão
  • publicado
  • 20/10/2016
  • 3:07 PM

Effects of particulate matter and its chemical constituents on elderly hospital admissions due to circulatory and respiratory diseases.

Various fractions of particulate matter have been associated with increased mortality and morbidity. The purpose of our study is to analyze the associations between concentrations of PM2.5, PM2.5-10, PM10 and their chemical constituents (soluble ions) with hospital admissions due to circulatory and ...
  • por Portal Padrão
  • publicado
  • 20/10/2016
  • 2:47 PM

Eficácia da arquitetura MLP em modo closed-loop para simulação de um Sistema Hidrológico

Para a elaboração do plano de bacia se faz necessária a realização de estimativas da resposta hidrológica. Sendo assim, o objetivo desse estudo foi de avaliar a simulação do comportamento hidrológico da bacia hidrográfica do Alto Canoas localizada em Santa Catarina, através de redes neura...
  • por Portal Padrão
  • publicado
  • 20/10/2016
  • 2:33 PM

Bright spots: seeds of a good Anthropocene

The scale, rate, and intensity of humans environmental impact has engendered broad discussion about how to find plausible pathways of development that hold the most promise for fostering a better future in the Anthropocene. However, the dominance of dystopian visions of irreversible environmental de...
  • por Portal Padrão
  • publicado
  • 20/10/2016
  • 2:08 PM

CH4 concentrations over the Amazon from GOSAT consistent with in situ vertical profile data

The Amazon Basin contains large wetland ecosystems which are important sources of methane (CH4). Spaceborne observations of atmospheric CH4 can provide constraints on emissions from these remote ecosystems, but lack of validation precludes robust estimates. We present the first validation of CH4 col...
  • por Portal Padrão
  • publicado
  • 21/09/2016
  • 1:34 PM

Land-use and climate change risks in the Amazon and the need of a novel sustainable development paradigm

For half a century, the process of economic integration of the Amazon has been based on intensive use of renewable and nonrenewable natural resources, which has brought significant basin-wide environmental alterations. The rural development in the Amazonia pushed the agricultural frontier swiftly, r...
  • por Portal Padrão
  • publicado
  • 20/09/2016
  • 3:57 PM