Vale Technological Institute

Geogenic controls and anthropogenic inputs on the seasonal hydrogeochemical variability of the Paraopeba River basin, Brazil

Abstract This study investigates the combined effects of geology, land use and land cover, hydrological seasonality, and disturbance history on the hydrogeochemistry of surface waters in the Paraopeba River Basin (PRB), located in Minas Gerais State, southeastern Brazil, and form...

A cytogenetic analysis with chromosome painting in typical antbirds (Passeriformes, Thamnophilidae) and an inference on chromosome evolution in Passeriformes

Abstract The typical antbirds (Passeriformes, Thamnophilidae) are a monophyletic group comprising 225 species in 45 genera, primarily distributed in the lowland forests of the Neotropics. There is limited karyotypic information for this bird family, including chromosome morpholog...

Urban landscape composition drives species-specific responses of aerial insectivorous bats in an Amazonian megacity

Abstract Urbanization profoundly impacts natural landscapes, altering species composition and ecosystem structure. In the Amazon, this process occurs amid large areas of native forest, which may favor biodiversity conservation in urban surroundings. Among tropical vertebrates, ba...

Integrated source apportionment and geochemical background assessment of organic and inorganic components in Amazonian upland lakes: insights from an extensive basin-wide geochemical database

Abstract Purpose This study established reliable natural geochemical backgrounds for Amazonian upland lakes and evaluated how lateritic catchment materials are transferred and transformed in lake sediments across Carajás, Araguaia, and Xingu. Methods Ferruginous duricrusts and la...