Results 61 to 70 of about 129,063 (307)

Changes in the carbon balance of tropical forest: evidence from long-term plots [PDF]

, 1998
The role of the world’s forests as a “sink” for atmospheric carbon dioxide is the subject of active debate. Long-term monitoring of plots in mature humid tropical forests concentrated in South America revealed that biomass gain by tree growth exceeded ...
Brown, S., Ferreira, L.V., Grace, J., Higuchi, N., Laurance, S.G., Laurance, W.F., Malhi, Y., Nunez, P.V., Phillips, O.L., Stern, M., Vasquez, R.M.   +10 more
core   +2 more sources

Tracing the origins and evolution of nymphalid butterflies (Lepidoptera) in the Atlantic Forest

Ecography, EarlyView.
Understanding the relative roles of diversification and dispersal is key to explaining large‐scale biogeographical patterns. Although both processes are known to shape biodiversity, their relative contributions remain understudied for many organisms. Here, we examine how these processes have jointly contributed to the exceptional diversity and endemism
Mar Repullés, Nicolas Chazot, Leidys Murillo‐ Ramos, Marianne Espeland, Karina Lucas Silva‐ Brandão, Alexandre Antonelli, André Victor Lucci Freitas, Pável Matos‐Maraví   +7 more
wiley   +1 more source

Experimental Analysis of Shear-Strengthened RC Beams with Jute and Jute–Glass Hybrid FRPs Using the EBR Technique

Buildings
The hybridisation of fibre-reinforced polymers (FRPs), particularly with the combination of natural and synthetic fibres, is a prominent option for their development.
Luciana P. Maciel, Paulo S. B. Leão Júnior, Manoel J. M. Pereira Filho, Wassim R. El Banna, Roberto T. Fujiyama, Maurício P. Ferreira, Aarão F. Lima Neto   +6 more
doaj   +1 more source

Reducing the deforestation of the Amazon through farming system intensification [PDF]

, 2008
The Amazon has become the last Far West of the planet. Today, the attention is focused on some sectors in which the region plays a major role: the mineral richness of the soil - especially hydro fuels - biodiversity, climate change and the coca ...
Bommel, Pierre, Burlamaqui, Amaury Bendahan, Da Veiga, Jonas Bastos, Mourão, Moïse, Poccard Chapuis, René, Tourrand, Jean-François   +5 more
core  

State‐Level Politics in Forest Governance: The Role of the Narrative‐Policy Nexus in the Brazilian Amazon

Environmental Policy and Governance, EarlyView.
ABSTRACT Deforestation and its social impacts are an enduring challenge in agrarian frontiers, especially in the tropics. Fueled by global demand for commodities, this process is mediated by ideas, concepts, meanings, and policies that uphold socioenvironmental degradation. A key and understudied—arena in which this mediation occurs is the sub‐national
Gabriela Russo Lopes, Fabio de Castro
wiley   +1 more source

Contributions of health education and social mobilization in the implementation of a malaria control programme using long-lasting insecticidal nets

Malaria Journal
Background Malaria is an infectious disease transmitted by mosquitoes of the genus Anopheles that represents a significant global health challenge, particularly in tropical and subtropical regions.
Fábio Medeiros da Costa, Moreno Magalhães de Souza Rodrigues, Vera Margarete Scarpassa   +2 more
doaj   +1 more source

Antioxidant and Cytotoxic Properties of Piper spp. Volatile Oils That Inhibit Pathogenic Microorganisms

Flavour and Fragrance Journal, EarlyView.
The samples were fungicidal against Candida, with MICs ranging from 62.5 to 250 μg/mL, and fungistatic against Penicillium adametzii, Aspergillus flavus and A. niger, with MICs of 1000 μg/mL. The volatile oils of Piper aduncum and Piper marginatum reduced the viability of MDA‐MB231 cells.
Midiã R. Oliveira, Ely D. Alfaia Neto, Carlos Eduardo C. Alves, Renata Galvão de Azevedo, Alice F. Gomes, Flávia Juliana Reis de Sousa, Juan Campos de Oliveira, Larissa Raquel S. Maciel, Gemilson S. Pontes, Ari F. Hidalgo, Antonia Q. L. Souza, Rita C. Saraiva Nunomura   +11 more
wiley   +1 more source

Seasonal drivers of plant–soil–microbial community structure and functions in Western Himalayan grasslands, Pakistan

Grassland Research, EarlyView.
Plant species richness was greater in summer in both alpine and subalpine grassland ecosystems. Soil moisture demonstrates significant positive correlations with soil organic carbon and total nitrogen across seasonal periods. Microbial α‐diversity peaks during summer but maintains functional stability across seasons.
Huma Ali, Muhammad Rafiq, Allan Degen, Ben Sparrow, Zhanhuan Shang   +4 more
wiley   +1 more source

Growing in the Dark Warmth: The Case of Amazonian Fish Colossoma macropomum

Frontiers in Marine Science, 2018
Photoperiod is considered an important synchronizer of biological activities and endocrine pathways, including growth. As ectotherms, fish have many physiological functions controlled by the photoperiod.
Renan D. Amanajás, Renan D. Amanajás, Jhonatan M. Silva, Jhonatan M. Silva, Adalberto L. Val, Adalberto L. Val   +5 more
doaj   +1 more source

A new species of Prosekia (Philosciidae, Isopoda) from an inundation forest (igapó) in the Central Amazon

, 1984
Prosekia tarumae n. sp.
De Castro, A.
core