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The São Francisco River drainage basin in Brazil’s Northeast region contains a substantial portion of the savanna-like Cerrado biome as well as large areas of Caatinga semi-arid thorn forest and some smaller fragments of Atlantic Rainforest. The Cerrado, which occupies the central part of the basin, is a complex biome with various physiognomies, from open grassland and brush with no trees to closed-canopy woodland. Tree cover density is a variable of the greatest ecological [...]

Indigenous lands in the Brazilian Amazon are under constant pressure, and deforestation of these areas has accelerated in recent years. Some of them, such as Apyterewa Indigenous Territory in Pará state, are particularly affected, endangering Brazil’s ability to meet the targets to which it is committed internationally in terms of combating deforestation and mitigating the impact of climate change. To protect the areas of the Amazon that are still intact, effective action must be [...]

Deforestation for agribusiness expansion in Brazil, in conjunction with climate change, has worsened the already severe drought suffered in the last decade by the transition zone between the eastern Amazon and the Cerrado, the vast tropical savanna ecoregion in central and western Brazil. This combination of trends endangers the stability of the biomes concerned and constitutes a risk to food production in the region known as MaToPiBa, a portmanteau of Maranhão, Tocantins, [...]

Even the finest particles of pollution influence the process of cloud formation and the rainfall regime. A study conducted in Manaus, the capital of Amazonas state in Brazil’s North region, shows that oxidation leads small aerosols expelled by factories and car exhausts, for example, to grow very rapidly, reaching up to 400 times their original size, and that this affects raindrop formation. “Understanding cloud and rain formation mechanisms in the Amazon is a major challenge [...]

In a 38-year-old man who manifested mild symptoms of COVID-19 for 20 days, the novel coronavirus continued to be detected in his organism and to undergo mutations for 232 days. If he had not been given continuous medical care, maintained social distancing and worn a mask, he could have spread the virus throughout these seven months. The atypical case of infection by SARS-CoV-2 was part of a study involving 38 Brazilian patients followed on a weekly basis between April and November 2020 by [...]

A study conducted by researchers affiliated with São Paulo State University (UNESP) in Brazil shows that large mammals have a major impact on plant diversity, primary productivity and biomass in the understory of Neotropical forests. Species like the Lowland tapir (Tapirus terrestris) and White-lipped peccary (Tayassu peccari) help keep an ecological balance in areas such as the Atlantic Rainforest with different levels of productivity, while also influencing the spatial structure [...]

A study of the management plans for 118 conservation units in Brazil shows that 60% use unsuitable methods to detect the presence of deer, and that 38% do not even describe the method used. Conservation of these animals may be endangered as a result. Eight deer species occur in Brazil; three are red-listed as “vulnerable” by IUCN. Management plans prescribe the governance and technical aspects of the administration of protected areas in Brazil. The protected areas analyzed in the [...]

Birds of a feather flock together. The popular saying applies to politics and to the computational analysis of complex networks in research on corruption, judging from a study by scientists at the University of São Paulo in Brazil. According to the authors, it is possible to predict whether deputies (members of Câmara dos Deputados, the lower house of Congress in Brazil) will be convicted of corruption or white-collar crime in future by analyzing the similarity between their [...]

Not just the characteristics of a project, but also the city in which it will be implemented and the diversity of the rewards promised to supporters are the key factors that determine the success of a crowdfunding campaign even before the standard 60-day time limit set by most online entrepreneurial fundraising platforms. A study by researchers at Getúlio Vargas Foundation (FGV) in Brazil analyzed more than 4,000 crowdfunding campaigns conducted locally, and for the first time [...]