Results 31 to 40 of about 60,499 (200)
Molecules, 2022 The chemical mechanism of the acid cleavage of proanthocyanidins (PAs) has been known for decades but has yet to be optimized. Therefore, we optimized this process in Byrsonima crassifolia, Euterpe oleracea and Inga edulis extracts using the response ...
Jesus N. S. Souza +5 more
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Evolution of Amazonian biodiversity: A review [PDF]
Acta AmazonicaABSTRACT Amazonia (defined herein as the Amazon basin) is home to the greatest concentration of biodiversity on Earth, providing unique genetic resources and ecological functions that contribute to ecosystem services globally. The lengthy and complex evolutionary history of this region has produced heterogeneous landscapes and riverscapes at multiple ...
Juan M. GUAYASAMIN +8 more
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Eighty-four per cent of all Amazonian arboreal plant individuals are useful to humans
, 2021 Plants have been used in Amazonian forests for millennia and some of these plants are disproportionally abundant (hyperdominant). At local scales, people generally use the most abundant plants, which may be abundant as the result of management of ...
Figueiredo, Fernando O.G. +9 more
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Energy and water dynamics of a central Amazonian rain forest [PDF]
, 2002 This paper presents measurements of the energy and water budgets of a tropical rain forest near Manaus, Brazil, in central Amazonia, collected between September 1995 and August 1996.
Grace, J. +20 more
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The Politics of Amazonian Deforestation
Journal of Latin American Studies, 1991 Environmental issues have very obviously come to occupy a prominent place on the political agenda, both domestically and internationally. This process has been driven by grass-roots concern for the future consequences of environmental degradation, assisted in many cases by the adoption of the green movement and of green issues as a platform for protest
openaire +2 more sources
Recovery of above-ground tree biomass after moderate selective logging in a central Amazonian forest
iForest - Biogeosciences and Forestry, 2018 We examined the recovery and dynamics of living tree above-ground biomass (AGB) after selective logging in an Amazonian terra firme forest managed by a private company.
Otani T +9 more
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Antibiotics, 2023 Many antimicrobial compounds have been seeking to protect the human body against pathogenic microbial infections. In recent times, there has been considerable growth of pathogens resistant to existing drugs due to the inappropriate use of antibiotics. In
Iago Castro da Silva +4 more
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Etnomapeamento de roças indígenas em ilhas de mata no lavrado de Roraima, extremo norte da Amazônia
AmbienteNa região da savana de Roraima (chamada de “lavrado”), onde predomina a vegetação herbácea, as roças indígenas são instaladas em áreas de vegetação florestal, restritas ao entorno de cursos d´água ou fragmentos denominados “ilhas de mata”, onde também ...
Rachel Pinho +5 more
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Amphibian diversity in Amazonian flooded forests of Peru [PDF]
, 2015 Global biodiversity is currently facing the sixth mass extinction, with extinction rates at least 100 times higher than background levels. The Amazon Basin has the richest amphibian fauna in South America, but there remain significant gaps in our ...
Upton, Kathleen Anne
core
Revista Brasileira de Ciências Ambientais, 2023 The present study analyzes the temporal variability of carbon monoxide (CO) over the Manaus Metropolitan Region (MMR) and its relations with nearby fires based on data obtained by the environmental satellite AQUA, for the 2003–2020 period.
Renato Trevisan Signori +4 more
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