Search Results - "ROLAND, Fabio"

Large but variable methane production in anoxic freshwater sediment upon addition of allochthonous and autochthonous organic matter by Grasset, Charlotte, Mendonça, Raquel, Saucedo, Gabriella Villamor, Bastviken, David, Roland, Fabio, Sobek, Sebastian

“…An important question in the context of climate change is to understand how CH₄ production is regulated in anoxic sediments of lakes and reservoirs. The type…”
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Extreme floods increase CO₂ outgassing from a large Amazonian river by Almeida, Rafael M., Pacheco, Felipe S., Barros, Nathan, Rosi, Emma, Roland, Fábio

“…Large Amazonian rivers are characteristically subject to seasonal floods. We examine how inundation extent affects the partial pressure of carbon dioxide…”
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Temporal and Spatial Variability of Micropollutants in a Brazilian Urban River by Quadra, Gabrielle Rabelo, Li, Zhe, Silva, Pâmela Souza Almeida, Barros, Nathan, Roland, Fábio, Sobek, Anna

“…In Brazil, environmental occurrence of micropollutants, such as pharmaceuticals, is rarely studied, and these compounds are not part of national water quality…”
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Significant fraction of CO2 emissions from boreal lakes derived from hydrologic inorganic carbon inputs by Weyhenmeyer, Gesa A., Kosten, Sarian, Wallin, Marcus B., Tranvik, Lars J., Jeppesen, Erik, Roland, Fabio

“…Lakes are a large source of CO 2 . An analysis of chemical and physical data from 5,118 boreal lakes reveals that a majority emit CO 2 originating primarily…”
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Amazon River carbon dioxide outgassing fuelled by wetlands by Abril, Gwenaël, Martinez, Jean-Michel, Artigas, L. Felipe, Moreira-Turcq, Patricia, Benedetti, Marc F., Vidal, Luciana, Meziane, Tarik, Kim, Jung-Hyun, Bernardes, Marcelo C., Savoye, Nicolas, Deborde, Jonathan, Souza, Edivaldo Lima, Albéric, Patrick, Landim de Souza, Marcelo F., Roland, Fabio

“…Global carbon budgets reveal that inland waters emit substantial amounts of carbon, which is believed to originate from the terrestrial biosphere; however,…”
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Micropollutants in four Brazilian water reservoirs by Quadra, Gabrielle Rabelo, Li, Zhe, Barros, Nathan, Roland, Fábio, Sobek, Anna

“…The concern about emerging contaminants such as pharmaceuticals is growing, mainly due to the increased global consumption of synthetic chemicals and the…”
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Fresh terrestrial detritus fuels both heterotrophic and autotrophic activities in the planktonic food web of a tropical reservoir: a mesocosm study by de Moura, Caroline Gabriela Bezerra, Rocha, Elinez, de Attayde, José Luíz, Noyma, Natália, de Oliveira Vidal, Luciana, Fonseca, Layla Mayer, Roland, Fábio, Amado, André Megali

“…Inland aquatic ecosystems play an important role in the global carbon cycle as they actively mineralize large amounts of terrestrial organic matter. However,…”
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Plankton dynamics under different climatic conditions in space and time by DE SENERPONT DOMIS, LISETTE N., ELSER, JAMES J., GSELL, ALENA S., HUSZAR, VERA L. M., IBELINGS, BAS W., JEPPESEN, ERIK, KOSTEN, SARIAN, MOOIJ, WOLF M., ROLAND, FABIO, SOMMER, ULRICH, VAN DONK, ELLEN, WINDER, MONIKA, LÜRLING, MIQUEL

“…Summary 1. Different components of the climate system have been shown to affect temporal dynamics in natural plankton communities on scales varying from days…”
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Brazil's Amazon conservation in peril by Almeida, Rafael M., Lovejoy, Thomas E., Roland, Fábio

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Do models of organic carbon mineralization extrapolate to warmer tropical sediments? by Cardoso, Simone J., Enrich-Prast, Alex, Pace, Michael L., Roland, Fábio

“…Freshwater sediments are important sites of organic carbon (OC) burial and mineralization. Previous studies indicate that warming can increase rates of OC…”
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Hydroelectric carbon sequestration by Mendonça, Raquel, Kosten, Sarian, Sobek, Sebastian, Barros, Nathan, Cole, Jonathan J., Tranvik, Lars, Roland, Fábio

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Responses of Phytoplanktonic Chlorophyll-a Composition to Inorganic Turbidity Caused by Mine Tailings by Nunes, Patrícia, Roland, Fabio, Amado, André M., Resende, Nathália da Silva, Cardoso, Simone Jaqueline

“…Inorganic turbidity can limit light penetration in water and reduce phytoplankton photosynthesis. Anthropogenic activities such as mining can produce or…”
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From virus to igapó forest: a systematic review of 35 years monitoring of an Amazonian Lake impacted by bauxite tailings (Batata Lake) by Cardoso, Simone Jaqueline, Bozelli, Reinaldo Luiz, Roland, Fabio, Esteves, Francisco de Assis, Barros, Marcos Paulo Figueiredo, Caramaschi, Érica Pellegrini, Leal, João José Fonseca, Resende, Nathália da Silva, Ribeiro, Enoque Gonçalves, Scarano, Fabio Rubio, Huszar, Vera Lúcia de Moraes

“…Aim Long-term ecological research often integrates many research groups and subjects in one or few sites sampled systematically along the time. In the Amazon,…”
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Phytoplankton abundance, biomass and diversity within and between Pantanal wetland habitats by Cardoso, Simone Jaqueline, Roland, Fábio, Loverde-Oliveira, Simoni Maria, Huszar, Vera Lúcia de Moraes

“…During the high water season, the flooding reduces environmental heterogeneity in aquatic ecosystems of the Pantanal wetland. When the water level recedes,…”
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Tropical freshwater ecosystems have lower bacterial growth efficiency than temperate ones by Amado, André M, Meirelles-Pereira, Frederico, Vidal, Luciana O, Sarmento, Hugo, Suhett, Albert L, Farjalla, Vinicius F, Cotner, James B, Roland, Fabio

“…Current models and observations indicate that bacterial respiration should increase and growth efficiency (BGE) should decrease with increasing temperatures…”
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Nutrient-chlorophyll relationships in tropical-subtropical lakes: do temperate models fit by Huszar, Vera L.M, Caraco, Nina F, Roland, Fabio, Cole, Jonathan

“…In tropical lakes relatively little is known about the general relationship between nutrient concentration and phytoplankton biomass. Using data from 192 lakes…”
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Carbon emission from hydroelectric reservoirs linked to reservoir age and latitude by Barros, Nathan, Cole, Jonathan J., Tranvik, Lars J., Prairie, Yves T., Bastviken, David, Huszar, Vera L. M., del Giorgio, Paul, Roland, Fábio

“…Reservoirs emit significant amounts of greenhouse gases. An analysis of data from 85 globally distributed hydroelectric reservoirs indicates that about 48 Tg…”
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Spatially Resolved Measurements of CO2 and CH4 Concentration and Gas-Exchange Velocity Highly Influence Carbon-Emission Estimates of Reservoirs by Paranaíba, José R, Barros, Nathan, Mendonça, Raquel, Linkhorst, Annika, Isidorova, Anastasija, Roland, Fábio, Almeida, Rafael M, Sobek, Sebastian

“…The magnitude of diffusive carbon dioxide (CO2) and methane (CH4) emission from man-made reservoirs is uncertain because the spatial variability generally is…”
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Complementary pathways of dissolved organic carbon removal pathways in clear-water Amazonian ecosystems: photochemical degradation and bacterial uptake by Amado, André M., Farjalla, Vinicius F., Esteves, Francisco de A., Bozelli, Reinaldo L., Roland, Fábio, Enrich-Prast, Alex

“…Abstract Dissolved organic carbon (DOC) photochemical reactions establish important links between DOC and planktonic bacteria. We hypothesize that seasonal…”
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Seasonal and diel variation in greenhouse gas emissions from an urban pond and its major drivers by van Bergen, Tamara J. H. M., Barros, Nathan, Mendonça, Raquel, Aben, Ralf C. H., Althuizen, Inge H. J., Huszar, Vera, Lamers, Leon P. M., Lürling, Miquel, Roland, Fábio, Kosten, Sarian

“…Small water systems are important hotspots of greenhouse gas (GHG) emission, but estimates are poorly constrained as data are scarce. Small ponds are often…”
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