Results 51 to 60 of about 69,344 (220)

Quando o campo está a 5 mil metros de altitude: Orduña, Peru [PDF]

Ponto Urbe, 2017
Dia 9, sabado, llegada a Puno Sofia y yo embarcamos el sabado en Lima a las 19:30 rumbo a Puno. Como no hay aeropuerto en esta ciudad, a raiz de su accidentada topografia, bajamos a las 21:10 en Juliaca, ciudad vecina de 200.000 habitantes y desde ahi, en una van, en una hora de viaje, llegamos finalmente a la sede del Departamento de Puno.
openaire   +2 more sources

Floral trait similarity at the community‐level increases reproductive success suggesting facilitation through pollinator sharing

Oikos, EarlyView.
The ability of plants to attract pollinators is context‐dependent, influenced by floral traits, abundance, and resources from the plant community. Indirect interactions through shared pollinators, from competition to facilitation, may lead to varied reproductive outputs in plants, and the mechanisms behind these interactions remain to be fully ...
Marsal D. De Amorim, Pedro J. Bergamo, Elisa Thébault, Luís G. S. Perugini, Sabrina A. Lopes, André R. Rech, Pietro K. M. Maruyama   +6 more
wiley   +1 more source

Considerações críticas sobre o uso de solos com horizontes orgânicos em São José dos Ausentes, RS

Revista Brasileira de Agroecologia, 2023
São José dos Ausentes, localizado a aproximadamente 1200 m de altitude, apresenta clima frio e úmido, favorecendo a gênese de solos com horizontes orgânicos.
Antônio Lunardi Neto, Matheus Valmor Nunes Salib   +1 more
doaj   +1 more source

CLIMATE CHANGE AND “CAMPOS DE ALTITUDE”: FORECASTS, KNOWLEDGE AND ACTION GAPS IN BRAZIL

Oecologia Australis, 2016
The recently published report of the Intergovernmental Panel on Climate Change (IPCC) acknowledges high altitude ecosystems in Latin America and elsewhere as some of the most vulnerable to climate change. The Brazilian Panel on Climate Change (PBMC, from the acronym in Portuguese) also recognizes the vulnerability of Brazilian high mountain ecosystems,
Fabio R. Scarano, Paula Ceotto, Gustavo Martinelli   +2 more
openaire   +2 more sources

Convective injection and photochemical decay of peroxides in the tropical upper troposphere: Methyl iodide as a tracer of marine convection [PDF]

, 1999
The convective injection and subsequent fate of the peroxides H2O2 and CH3OOH in the upper troposphere is investigated using aircraft observations from the NASA Pacific Exploratory Mission-Tropics A (PEM-Tropics A) over the South Pacific up to 12 km ...
Blake, DR, Cohan, DS, Heikes, BG, Jacob, DJ, Schultz, MG   +4 more
core  

Nutritional properties, traditional uses and potential new applications for the sotol plant (Asparagaceae, Convallarioideae): A review

PLANTS, PEOPLE, PLANET, EarlyView.
Sotol (Dasylirion spp.) is a resilient desert plant that sustains ecosystems, cultures and livelihoods in Chihuahua Desert. Our review highlights its nutritional properties, traditional uses and potential new applications in food, pharmaceuticals, renewable energy and water remediation. By synthesizing evidence across disciplines, we show how sotol can
Dámaris Leopoldina Ojeda Barrios, Antonio Martínez Ruiz, Marisela Calderón Jurado, Ramón Saúl Luján Aguirre, Juan Luis Jacobo Cuellar, Oscar Sariñana‐Aldaco, María Teresa Martínez Damián, Oscar Cruz Alvarez   +7 more
wiley   +1 more source

Notas sobre a ecologia e a preservação de Nothochilus coccineus Radlkofer (Scrophulariaceae), espécie endêmica ao Maciço do Caparaó, ES/MG Notes on the ecology and conservation of Nothochilus coccineus Radlkofer {Scrophulariaceae}, a species endemic to the Caparaó Massif, ES/MG

Acta Botânica Brasílica, 1999
O presente trabalho apresenta dados básicos sobre a ecologia e a distribuição de N. coccineus Radlk., a única espécie do gênero, endêmica nos campos de altitude do Maciço do Caparaó, sudeste do Brasil, no Parque Nacional do Caparaó.
Hugh DeForest Safford
doaj   +1 more source

Sementes esverdeados e qualidade de sementes de soja produzidas em campos de multiplicação com diferentes altitudes no sudoeste goiano

CONTRIBUCIONES A LAS CIENCIAS SOCIALES, 2023
A semente é um dos principais insumos agrícolas por conduzir ao campo características que irão determinar o manejo, sendo que a qualidade fisiológica das sementes é um fator de grande importância para o estabelecimento das lavouras e produção de grãos. A região de produção das sementes de soja é determinante pois, de acordo com a temperatura e umidade,
Guilherme Henrique da Costa Nunes, Andrea Bicca Noguez Martins, Lílian Vanussa Madruga De Tunes, Thiago Antonio Da Silva, Andréia da Silva Almeida, Anderson Fernando Lima Pereira, Marta Gubert Tremea, José Patrício Nunes De Souza   +7 more
openaire   +1 more source

Control failure risk, resistance and enzymatic activity of neurotoxic insecticides in Brazilian populations of Leucoptera coffeella (Lepidoptera: Lyonetiidae)

Pest Management Science, EarlyView.
Bioassays of 36 Leucoptera coffeella populations revealed resistance to neurotoxic insecticides, control failures of ≤62.9% and enzyme activity variation, with particularly high GST and low AChE levels. Abstract Background Leucoptera coffeella is a key pest of coffee crops in Brazil, causing significant damage by mining coffee leaves.
Daianna P. Costa, Carlos G. da Cruz, Ryan F. S. e Silva, Liliane E. Visôtto, Jesús E. Gomez, Marisol Giraldo‐Jaramillo, Flávio L. Fernandes   +6 more
wiley   +1 more source

Nonmethane hydrocarbon measurements in the North Atlantic Flight Corridor during the Subsonic Assessment Ozone and Nitrogen Oxide Experiment [PDF]

, 2000
Mixing ratios of nonmethane hydrocarbons (NMHCs) were not enhanced in whole air samples collected within the North Atlantic Flight Corridor (NAFC) during the fall of 1997.
Anderson, BE, Blake, DR, Blake, NJ, Chen, TY, Fuelberg, HE, Kondo, Y, Lopez, JP, Rowland, FS, Sachse, GW, Simpson, IJ, Sive, BC, Thompson, AM, Vay, SA   +12 more
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