Veículo
Science X Network (EUA)
Em 2024: 4 notícias
Desde 1995: 13 notícias
In Brazil, 76% of deforestation in three Amazonian states occurred in a planned agricultural development zone
Publicado em 07 maio 2024
May 7, 2024 This article has been reviewed according to Science X's editorial process and policies Editors have highlighted the following attributes while ensuring the content's credibility:
by Luciana Constantino, FAPESP
The Brazilian government is discussing the creation of an "agricultural development zone" at the confluence of three states in the Amazon region—Amazonas, Acre, and Rondônia (hence the proposed acronym AMACRO).
Meanwhile, deforestation in [...]
-
Loss of large herbivores affects interactions between plants and their natural enemies, study shows
Publicado em 07 maio 2024May 7, 2024 This article has been reviewed according to Science X's editorial process and policies Editors have highlighted the following attributes while ensuring the content's credibility: by FAPESP Insects and microorganisms that feed on plants, cut up leaves, modify leaf tissue or produce leaf spots and other kinds of damage, are usually known as pests and considered harmful, yet interactions between plants and their natural enemies are important sources of biodiversity. In [...]ver notícia -
Maps developed with artificial intelligence confirm low levels of phosphorus in Amazonian soil
Publicado em 29 abril 2024As the impacts of climate change increasingly affect the daily lives of residents in several countries, including Brazil, the resilience of forests, especially tropical ones such as the Amazon, has become a frequent topic of research. In addition to studying various factors that influence the way vegetation reacts to global warming, scientists are seeking to improve vegetation models – tools that play a crucial role in understanding and managing ecosystems, contributing to biodiversity [...]ver notícia -
Registration of biological pest control products exceeds that of agrochemicals in Brazil
Publicado em 19 abril 2024The number of biological products registered in Brazil in recent years for crop protection against agricultural pests has surpassed that of agrochemicals. Around 90% of the area under sugarcane cultivation in the country, for example, already uses natural enemies such as microorganisms, macroorganisms, biochemicals (compounds of natural origin that control pests and diseases) and semiochemicals (molecules that induce behavioral responses in target organisms). The data were presented by [...]ver notícia -
Researchers analyze performance of bacterium in combating coffee rust
Publicado em 20 dezembro 2022by Ricardo Muniz, FAPESP A new study has analyzed the potential of a bacterium for biological control of the fungus Hemileia vastatrix, which causes coffee rust, a major challenge for Brazilian coffee growers. An article on the study is published in the journal BMC Microbiology. The symptoms of coffee rust are yellow spots like burn marks on the leaves of the plant. The disease impairs photosynthesis, making foliage wither and preventing bean-producing cherries from growing until the tree [...]ver notícia -
Study estimates how much deforestation could increase if restrictions on mining in the Amazon are lifted
Publicado em 25 outubro 2022A model developed by Brazilian researchers shows that opening up protected areas of the Amazon to mining projects would lead to the deforestation of 183 square kilometers (km²) due directly to new mines and the loss of an additional 7,626 km² of forest to the direct and indirect impacts of infrastructure construction. The scientists mapped 242 mineral deposits in the National Reserve of Copper and Associated Minerals (RENCA), an area located in the northern states of Amapá [...]ver notícia -
Study makes spin liquid model more realistic
Publicado em 11 outubro 2022Newswise — Spin is the intrinsic magnetic moment of a particle – an electron, for example. It is a fundamental magnitude, like mass and charge. Simply put, it is as if the particle had a magnet inside it that enabled it to interact, even while at rest, not only with the spins of other particles but also with external magnetic fields. By analogy with usual liquids, a system in which spins do not exhibit magnetic order, even at temperatures close to absolute zero, is termed a spin [...]ver notícia -
$205 Million Investment Accelerates Construction of the Giant Magellan Telescope
Publicado em 02 agosto 2022The Giant Magellan Telescope, the most powerful telescope ever engineered using the world's largest mirrors, today announced it has secured a $205 million investment from its international consortium to accelerate construction. This investment marks one of the largest funding rounds for the telescope since its founding and includes leading commitments from the Carnegie Institution for Science, Harvard University, the São Paulo Research Foundation (FAPESP), The University of Texas at [...]ver notícia -
Study points to physical principles that underlie quantum Darwinism
Publicado em 27 abril 2022Study points to physical principles that underlie quantum Darwinism by José Tadeu Arantes, FAPESP At the atomic and subatomic scales, objects behave in ways that challenge the classical worldview based on day-to-day interactions with macroscopic reality. A familiar example is the discovery that electrons can behave as both particles and waves, depending on the experimental context in which they are observed. To explain this and other phenomena, which appear contrary to the laws of [...]ver notícia -
Animals essential to seed dispersal are the first to disappear owing to deforestation
Publicado em 26 abril 2022Trees of the species Pouteria bullata, which is endemic to Brazil and whose common name is guapeva-vermelha, are found solely in the Atlantic Rainforest biome and produce sweet succulent fruit. Their seeds are relatively large (about 2 cm) and cannot be swallowed by birds or small mammals, so they depend on primates like the Brown howler (Alouatta guariba) and Southern muriqui (Brachyteles arachnoides), as well as the South American Tapir (Tapirus terrestris), to disperse their genetic [...]ver notícia