Results 91 to 100 of about 69,344 (220)
Mission 73 - Summary and data catalog [PDF]
Earth resources program geographic applications program summary, recommendations, and data catalog for remote sensor mission ...
North, G. W., Pascucci, R. F.
core +2 more sources
Summary In tropical mountains, surviving temperature extremes demands finely tuned strategies. We investigated how populations of the bromeliad Pitcairnia flammea across a 2200 m elevational gradient balance genetic canalization and plasticity, and whether thermal strategies are coordinated between seeds and leaves.
Cleber J. N. Chaves +17 more
wiley +1 more source
Resumo Este trabalho relaciona as espécies e variedades de Bromeliaceae ocorrentes nos campos de altitude do Estado do Rio de Janeiro, Brasil. Foram encontrados quatro padrões básicos de distribuição geográfica: 1. Ampla distribuição. 2.
Gustavo Martinelli +1 more
doaj +1 more source
O trabalho apresenta análises das velocidades de deriva zonal das irregularidades de plasma ionosférico de grande escala; essas irregularidades foram observadas utilizando técnica óptica de emissão OI 630,0 nm, obtida através de fotômetro imageador ...
Flávia Elaine Coelho +4 more
doaj +1 more source
Mirax: A Brazilian X-Ray Astronomy Satellite Mission [PDF]
We describe the ``Monitor e Imageador de Raios-X'' (MIRAX), an X-ray astronomy satellite mission proposed by the high energy astrophysics group at the National Institute for Space Research (INPE) in Brazil to the Brazilian Space Agency.
Boella +28 more
core +2 more sources
Microclimate drives demographic compensation in a narrow endemic tropical species
Summary Demographic compensation occurs when reductions in some vital rates are offset by increases in others, allowing populations to maintain similar performance across varying environments. This mechanism may help explain species' ecological distributions and range limits, yet its role at microenvironmental scales remains poorly understood.
Talita Zupo +10 more
wiley +1 more source
RESUMO No Estado de Santa Catarina, três resoluções do Conselho Nacional do Meio Ambiente (CONAMA) caracterizam estágios sucessionais de formações vegetacionais para licenciamento ambiental: 04/1994 (florestas), 261/1999 (restinga) e 423/2010 (campos de ...
Aline Possamai Della +1 more
doaj +1 more source
Espécies exóticas invasoras são espécies introduzidas e estabelecidas que produzem descendentes viáveis e que se propagam a distâncias significativas da planta-mãe, podendo causar danos ao meio ambiente. O presente estudo teve como objetivo realizar as primeiras avaliações sobre esse processo de invasão e uma ação de manejo da planta exótica invasora ...
Renan Macari Falleiros +2 more
openaire +2 more sources
ABSTRACT Understanding the biotic and abiotic influences on the deposition and diagenesis of recent microbial carbonates is crucial for addressing the environmental and ecological significance of ancient organosedimentary structures. This study investigates these factors and their expression in the microstructure of Holocene tufa thrombolites from a ...
Paulo Quezada +10 more
wiley +1 more source
Previously known only from the North and Central America, the lichenized fungi Cladonia dimorphoclada Robbins is recorded for the first time in South America.
Emerson Luiz Gumboski +4 more
doaj +1 more source

