A5057367791- Geology and Paleoclimatology Research
- Amazonian Archaeology and Ethnohistory
- Isotope Analysis in Ecology
- Plant Diversity and Evolution
- Fish biology, ecology, and behavior
- Pleistocene-Era Hominins and Archaeology
- Geological formations and processes
- History of Science and Natural History
- Geography and Environmental Studies
- Paleontology and Stratigraphy of Fossils
- Biocrusts and Microbial Ecology
- Analytical Chemistry and Chromatography
- Environmental and biological studies
- Marine and coastal ecosystems
- Soil erosion and sediment transport
- Metabolomics and Mass Spectrometry Studies
- Archaeology and ancient environmental studies
- Coastal wetland ecosystem dynamics
- Ecology and Vegetation Dynamics Studies
- Molecular spectroscopy and chirality
- Phytochemistry Medicinal Plant Applications
- Lichen and fungal ecology
- Forest ecology and management
- Evolution and Paleontology Studies
Universidade de São Paulo
2015-2020
Instituto de Geociencias
2016
Guarulhos University
2009-2011
Abstract The origin of modern disjunct plant distributions in the Brazilian Highlands with strong floristic affinities to distant montane rainforests isolated mountaintops northeast and northern Amazonia Guyana Shield remains unknown. We tested hypothesis that these unexplained biogeographical patterns reflect former ecosystem rearrangements sustained by widespread migrations possibly due climatic are very dissimilar from present-day conditions. To address this issue, we mapped presence...
Abstract The lack of paleoecological records from the montane Atlantic Rainforest coastal Brazil, a hotspot biological diversity, has been major obstacle to our understanding vegetational changes since last glacial cycle. We present carbon isotope and pollen assess impact glaciation on native vegetation Serra do Mar rainforest in São Paulo, Brazil. From ca. 28,000 ∼ 22,000 14 C yr BP, subtropical forest with conifer trees is indicative cool humid conditions. In agreement isotopic data soil...
Abstract. The Xingu River is a large clearwater river in eastern Amazonia and its downstream sector, known as the Volta Grande do ("Xingu Great Bend"), unique fluvial landscape that plays an important role biodiversity, biogeochemistry prehistoric historic peopling of Amazonia. sedimentary dynamics sector will be shifted next few years due to construction dams associated with Belo Monte hydropower project. Impacts on biodiversity carbon cycling are anticipated, especially likely changes...
We present two pollen diagrams from the semi-arid Caatinga of Catimbau National Park, in Pernambuco and a Mauritia palm forest Caatinga/Cerrado ecotone southern Piauí, NE Brazil, spanning last 10,000 cal. yrs BP 1,750 cal BP, respectively. These records contain signature local vegetation permit correlation signal with regional climatic changes. The record shows Zizyphus sp., typical taxon, all three zones indicating predominance arboreal taxa adapted to high humidity ca. 6,000 gradual...
The paleoclimatic record of Juréia Paleolagoon, coastal southeastern Brazil, includes cyclic and gradual changes with different intensities frequencies through geological time, it is controlled by astronomical, geophysical, phenomena. These variations are not due to one single cause, but they result from the interaction several factors, which act at temporal spatial scales. Here, we describe paleoenvironmental evidence regarding climatic sea level last 9400 cal yr BP Paleolagoon – main...
The Caatinga is dominated by a semiarid climate and high plant biodiversity dealing with anthropogenic disturbance change. Previous studies suggest that became completely soil‐water pulse-dominated forest in response to reduced water availability at the end of last ice age, around 10 cal kyr BP. This work aimed identify vegetative climatic evolution, human influence Cariri region, one driest parts Brazil. We sampled soil temporal pond pollen. testimony 170 cm lenght achieves 6,216 yr BP...
O presente trabalho trata do estudo de esporos fungos provenientes um testemunho obtido numa das turfeiras distrito Eugênio Melo, médio vale rio Paraíba Sul, estado São Paulo, Brasil. Com idades entre 11.240 e 300 cal. anos AP, o mostrou dois ciclos sedimentares, separados por hiato cerca 7.000 anos. A extração dos palinomorfos seguiu protocolo processamento sedimentos quaternários, com dissolução silicatos silicofluoretos, eliminação ácidos húmicos acetólise. Identificaram-se 210 tipos...
The concept of palynological assemblage, a set all identifiable pollen grains and spores, is very useful in geolocation determinations Forensic Studies. To identify plant genera, palynologists must recognize detailed aspects apertures, ornamentation layers on the cell wall. Pollen spores recovered from higher purity cocaine samples represent an alternative to indicate drug source regions. After following method established by Stanley 1992, we added acetolysis procedure seized Civil Police...