Results 91 to 100 of about 63,538 (224)

Environmental Contamination Affects Associated Bacterial Communities in a Neotropical Arboreal Ant

Biotropica, Volume 58, Issue 3, May 2026.
Environmental stressors such as contamination from mining tailings can alter microbial communities associated with insects, including social ants. Ants, as widespread and ecologically influential insects with stable microbial associations, offer a relevant model to examine these effects.
Marília R. Bitar, Aristóteles Góes‐Neto, Paulo S. Oliveira, Corrie S. Moreau, Sérvio P. Ribeiro   +4 more
wiley   +1 more source

Fluxos de calor no dossel vegetativo e infiltração de água no solo, em floresta tropical Heat fluxes in the vegetative canopy and water infiltration in tropical forest

Revista Brasileira de Engenharia Agrícola e Ambiental, 2011
Este estudo analisou as variações sazonais e anuais dos fluxos de calor sensível e latente, armazenados pelo dossel vegetativo de floresta tropical úmida, bem como a taxa de infiltração de água no solo em duas parcelas experimentais, uma com exclusáo de ...
Vanessa de A. Dantas, Vicente de P. R. da Silva, Antonio C. L. da Costa, Glayson F. B. das Chagas   +3 more
doaj   +1 more source

The Flooding Gradient Affects Seed Dispersal by Fruit‐Eating Fishes in Amazonian Whitewater Floodplain Forests

Biotropica, Volume 58, Issue 3, May 2026.
This research approaches the interaction between frugivorous fish and the flooded forests in the central Amazon. We evaluated the fruit consumption by fish and the seed dispersal potential along the flood gradient. We tested the hypothesis that the role of fish as seed dispersers varies between low várzea (LV) and high várzea (HV) forests.
Gilvan Costa, Sandra Bibiana Correa, Florian Wittmann, Jochen Schöngart, Maria Teresa Fernandez Piedade, Efrem Jorge Ferreira, Leonardo Maltchik   +6 more
wiley   +1 more source

Biochemical Characterization of a Kunitz‐Type Protease Inhibitor From Mimosa regnellii and Its Effects on Melanoma Cell Viability and Angiogenesis

Chemistry &Biodiversity, Volume 23, Issue 4, April 2026.
A Kunitz‐type serine protease inhibitor (JTI) purified from Mimosa regnellii seeds selectively targets melanoma cells. JTI triggers mitochondrial apoptosis, increases ROS and Ca2+ levels, arrests the cell cycle, and suppresses migration and angiogenesis without affecting healthy cells.
Luciana Maria Araújo Rabêlo, Pedro Henrique de Oliveira Cardoso, Leonardo Thiago Duarte Barreto Nobre, Paula Ivani Medeiros dos Santos, Sheyla Varela Lucena, Raphael Paschoal Serquiz, Marcelo Porto Bemquerer, Hugo Alexandre de Oliveira Rocha, Helena Bonciani Nader, Elizeu Antunes dos Santos, Adeliana Silva de Oliveira, Breno Emanuel Farias Frihling, Ludovico Migliolo   +12 more
wiley   +1 more source

Myxobiota of the Brazilian Atlantic Forest: species on oil palm tree (Elaeis guineensis, Arecaceae)

Rodriguésia
Elaeis guineensis Jacq. (Arecaceae), the oil palm tree, serves as a phorophyte for many different groups of organisms, someof whichhelp decompose organic matter comingfromthe organs of the tree itself or fromremainsof other plants retained in leaf ...
Clebson Firmino da Silva, Laise de Holanda Cavalcanti   +1 more
doaj   +1 more source

A new species of Ribautiella (Myriapoda, Symphyla, Scolopendrellidae) from an Amazonian black-water inundation forest and notes on its natural history and ecology

, 1984
Ribautiella amazonica is described from a black-water inundation forest near Manaus, Brazil. The genus is recorded for the first time for the Americas. R. amazonica was predominantly collected from the forest soil, mainly between 7 and 14 cm depth and is
Adis, J., Scheller, U.
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Contribution of fungi to primary biogenic aerosols in the atmosphere: wet and dry discharged spores, carbohydrates, and inorganic ions [PDF]

, 2007
Biogenic aerosols play important roles in atmospheric chemistry physics, the biosphere, climate, and public health. Here, we show that fungi which actively discharge their spores with liquids into the air, in particular actively wet spore discharging ...
Andreae, M. O., Elbert, W., Pöschl, U., Taylor, P. E.   +3 more
core   +3 more sources

ESTIMATIVA DE BIOMASSA EM UMA FLORESTA TROPICAL NO MUNICÍPIO DE MAUÉS - AM, BRASIL

Revista Brasileira de Cartografia, 2013
O sensoriamento remoto (SR), sistema de informação geográfica (SIG) e sistema de posicionamento global (GPS) são importantes ferramentas para as diversas etapas de inventários florestais, inclusive para as estimativas de biomassa. O objetivo deste trabalho foi consolidar uma metodologia para a espacialização ou mapeamento das variáveis biofísicas ...
Celes, Carlos Henrique, Shimabukuro, Yosio, Campos, Moacir Alberto Assis, Higuchi, Niro   +3 more
openaire   +2 more sources

Vegetation Components as Nature‐Based Solutions to Reduce Runoff and Soil Loss in a Brazilian Semi‐Arid Ecosystem

Ecohydrology, Volume 19, Issue 3, April/May 2026.
ABSTRACT Hydraulic roughness (log f) is invoked as an integrator of vegetation effects on overland flow in semi‐arid catchments, yet the quantitative contribution of individual cover components remains poorly resolved. This study aimed to elucidate the mechanisms by which shrub vegetation, surface litter and tree canopy modulate runoff generation ...
Victor Casimiro Piscoya, José Ramon Barros Cantalice, Vijay P. Singh, Moacyr Cunha Filho, Alex Souza Moraes, Robson Carlos Pereira de Melo, Luiz Diego Vidal Santos, Francisco Sandro Rodrigues Holanda, Alceu Pedrotti, Ludmilla Morais Pereira, Thaiana Brunes Feitosa, Renisson Neponuceno de Araújo Filho   +11 more
wiley   +1 more source

Anatomy, drying behaviour and mechanical properties of lesser used wood species from Mozambique [PDF]

, 2010
The study provides an overview of Mozambique timber sector, descriptive and comparative wood anatomy, drying experiments and interrelationships between mechanics, density and anatomical features of lesser used species from Mozambique.
Uetimane Junior, Ernesto
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