Results 41 to 50 of about 1,803 (208)

Emissões naturais e antrópicas de nitrogênio, fósforo e metais para a bacia do Rio Macaé (Macaé, RJ, Brasil) sob influência das atividades de exploração de petroleo e gás na Bacia de Campos

Química Nova, 2013
Emission factors of natural processes and anthropogenic activities were used to estimate nutrients and metal loads for the lower Macaé river basin, which hosts the operational base for the offshore oil and gas exploration in the Campos Basin.
Mauricio Mussi Molisani, Franscisco de Assis Esteves, Luiz Drude de Lacerda, Carlos Eduardo de Rezende   +3 more
doaj   +1 more source

A new combination in Strophopappus (Asteraceae, Vernonieae, Lepidaploinae)

Nordic Journal of Botany, EarlyView.
Revisions of herbarium collections reveal a new combination in Strophopappus (Asteraceae, Vernonieae, Lepidaploinae). Strophopappus comprises nine species occurring in South America, eight of which are endemic to Brazil. Currently, Vernonia riedeliana is treated as a synonym of Strophopappus bicolor.
Danielle Remor, Carolina M. Siniscalchi, Benoît Loeuille   +2 more
wiley   +1 more source

Deep sea Caridea (Crustacea, Decapoda) from Campos Basin, RJ, Brazil

Brazilian Journal of Oceanography, 2007
During the Campos Basin Deep Sea Environmental Project coordinated by CENPES/PETROBRAS two collecting campaigns were performed. Both used the N/RB Astrogaroupa and fishery nets to collect samples from the continental slope in Campos Basin, RJ (21º48'S to
Irene A. Cardoso, C. S. Serejo
doaj   +1 more source

Geological structure and oil and gas content of the shelf of the Republic of Equatorial Guinea

RUDN Journal of Engineering Research, 2022
The oil and gas potential of the Republic of Equatorial Guinea, in which revenues from the sale of gas and oil account for more than 90 % of national income, is studied.
Alexander E. Kotelnikov, Lazaro M. Ondo Ayenvegue   +1 more
doaj   +1 more source

Two new endemic species of Portulaca (Portulacaceae) from the Brazilian Pampa grasslands

Nordic Journal of Botany, EarlyView.
Portulaca L. is a monophyletic, cosmopolitan genus of succulent plants comprising ca 153 species, with particularly high diversity in xerophytic ecosystems in tropical and subtropical regions. Based on morphological evidence, we describe and illustrate two new species from the Brazilian Pampa, Portulaca guaritensis and Portulaca guenoa.
José Roberto Ferraz, Bárbara Pinheiro Moreira, João Marcelo Alvarenga Braga, Leonardo Paz Deble   +3 more
wiley   +1 more source

Using a social‐ecological macrosystems framework to understand how human activities alter ecological synchrony

People and Nature, EarlyView.
Abstract Different aspects of ecological systems, biotic or abiotic, often fluctuate in coordinated patterns over space and time. Such high concordance between ecological processes is often referred to as ecological synchrony. Human activities, including and beyond climate change, have the potential to alter ecological synchrony by disrupting or ...
Yiluan Song, Mallory Barnes, K. Ann Bybee‐Finley, Kyla M. Dahlin, Travis McDevitt‐Galles, Stephan B. Munch, Guillermo E. Ponce‐Campos, Casey Youngflesh, Benjamin Zuckerberg, Kai Zhu   +9 more
wiley   +1 more source

Digital fire technologies and community networks: Cultivating just sociotechnical practices for living with planetary change

People and Nature, EarlyView.
Abstract Fires are expanding in frequency and intensity worldwide due to climate change and land‐use transformations. At the same time, fire often plays a regenerative role in ecosystems. Traditional and cultural practices incorporate fire use for landscape management and landscape renewal. In this complex matrix of fire ecologies, digital technologies
Jennifer Gabrys, Paula Tiara Torres, Pablo González Rivas   +2 more
wiley   +1 more source

Deep-water Mangeliinae, Taraninae and Clathurellinae (Mollusca: Gastropoda: Conoidea: Turridae) from the Campos Basin, southeast Brazil

Scientia Marina, 2010
During the program “Environmental Characterization of the Campos Basin, RJ, Brazil”, from 2001 to 2003, samples were taken of soft bottoms from the continental slope of Campos Basin (off southeast Brazil) by the Research Vessel “Astro-Garoupa” with a 0 ...
Raquel Medeiros Andrade Figueira, Ricardo Silva Absalão   +1 more
doaj   +1 more source

Improved Cerrado Wetland Mapping Through Seasonal Moisture Metrics, Terrain Information and Semantic Segmentation

Remote Sensing in Ecology and Conservation, EarlyView.
Brazil's Cerrado valley wetlands—swamp savanna and gallery forest—are highly important for the biome's water cycle and carbon storage and are susceptible to degradation from the impacts of land use expansion and the climate crisis. In support of their detailed monitoring and assessment, we developed and tested a transferable mapping approach that ...
Felix Beer, Hugo do Nascimento Bendini, Mateus de Souza Miranda, Vu‐Dong Pham, Leila Maria Garcia Fonseca, Cássia Beatriz Rodrigues Munhoz, Sebastian van der Linden   +6 more
wiley   +1 more source

Depositional model and sedimentation controls of a complex hybrid carbonate–siliciclastic ramp (Albian) – SW Campos Basin, Brazil

Sedimentologika
Hybrid deposits form from the interaction between carbonate deposition and coeval siliciclastic input, influenced by spatial and temporal dynamics.
Francyne Bochi do Amarante, Claiton Marlon dos Santos Scherer, Garibaldi Armelenti, Luiz Fernando De Ros, Renata Alvarenga, Juliano Kuchle, João Claudio Conceição, José Luis Drummond Alves, Luiz Landau   +8 more
doaj   +1 more source