Results 51 to 60 of about 400,020 (225)
Defining a US defence diplomacy for Brazil at the beginning of the century [PDF]
At the beginning of the 1990s, the US military was apparently considered to be a significant threat by the Brazilian Armed Forces. Other military establishments in the Hemisphere likewise expressed a lack of confidence, and even a sense of fear ...
Zirker, Daniel
core +1 more source
Abstract Fisheries constitute one of the major benefits that oceans provide for people. Yet anthropogenic pressures and global changes are disrupting coastal systems, eroding marine biodiversity and threatening the food security of traditional populations.
Fabricio C. Albuquerque +4 more
wiley +1 more source
Projeto cirandar: experiências do seminário integrado em rodas de formação [PDF]
Trabalho apresentado no 31º SEURS - Seminário de Extensão Universitária da Região Sul, realizado em Florianópolis, SC, no período de 04 a 07 de agosto de 2013 - Universidade Federal de Santa Catarina.Este relato apresenta as sínteses avaliativas ...
Dorneles, Aline Machado +1 more
core
Read the free Plain Language Summary for this article on the Journal blog. Abstract The dependence on biotic pollination may constrain plant phenological responses because flowering time ultimately defines reproductive success. We proposed a local‐scale study combining long‐term phenology and experimental data to evaluate how a key functional trait—the
Amanda Eburneo Martins +3 more
wiley +1 more source
Electron precipitation events in the lower ionosphere and the geospace conditions
We present an analysis of localized ionospheric perturbations detected at Comandante Ferraz Brazilian Antarctic Station (McIlwain parameter L~2.25) as fast-amplitude variations of very low frequency (VLF) signals transmitted from Hawaii (NPM, at 21.4 kHz)
José Henrique Fernandez +1 more
doaj +1 more source
Variabilidade espacial de propriedades químicas do solo para fins de adubação e calagem localizada em área com cultivo de grãos. [PDF]
A adequada identificação da variabilidade espacial das propriedades químicas do solo permite o manejo localizado com economia de insumos e aumento da capacidade produtiva.
GREGO, C. R. +2 more
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Along with precipitation, forest cover emerges as a fundamental driver of alpha and beta diversity in the seed rain. This highlights the role of habitat amount at the landscape level over patch‐level features, like patch size, for seed dispersal. However, increased seed density can be related to higher dispersal rates in forest borders.
Luís Felipe Daibes +63 more
wiley +1 more source
Delimitação do embasamento da Bacia de Taubaté
Este trabalho consiste na definição do embasamento da Bacia de Taubaté por meio de métodos geoestatísticos, a partir de dados sísmicos, gravimétricos e informações de poços tubulares profundos.
Ancilla Maria Almeida de Carvalho +2 more
doaj +1 more source
Distribution of black leaf streak disease (Mycosphaerella fijiensis Morelet) in Mato Grosso, Brazil
Banana black leaf streak disease caused by the present quarantine pest M. fijiensis occurs in Mato Grosso State since 1999 and requires adoption of sanitation, including detection survey.
Omar Roberto da Silveira +5 more
doaj +3 more sources
Rarity of monodominance in hyperdiverse Amazonian forests. [PDF]
Tropical forests are known for their high diversity. Yet, forest patches do occur in the tropics where a single tree species is dominant. Such "monodominant" forests are known from all of the main tropical regions. For Amazonia, we sampled the occurrence
Alonso, Alfonso +99 more
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