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Paleoclimatic context of projected future warming in southern South America
(Springer Wien, 2020-04)
This paper describes changes of near-surface air temperature in southern South America from the Last Glacial Maximum (~ 21,000 years before present) to the end of the twenty-first century based on PMIP3-CMIP5 model ...
Late Pleistocene and Holocene paleoenvironments in ponds and alluvial sediments of Upper Paraná River, Brazil
(2013-01-01)
Freshwater sponge spicules were analyzed as a paleoenvironmental proxy indicator in five cores of ponds and alluvial fan sediments in the Upper Paraná River's left bank, near Querência do Norte town, northwestern of State ...
Late Pleistocene and Holocene paleoenvironments in ponds and alluvial sediments of Upper Paraná River, Brazil
(2013-01-01)
Freshwater sponge spicules were analyzed as a paleoenvironmental proxy indicator in five cores of ponds and alluvial fan sediments in the Upper Paraná River's left bank, near Querência do Norte town, northwestern of State ...
Efficiency of protected areas in Amazon and Atlantic Forest conservation: A spatio-temporal view
(2018-02-01)
The Amazon and Atlantic Forest are considered the world's most biodiverse biomes. Human and climate change impacts are the principal drivers of species loss in both biomes, more severely in the Atlantic Forest. In response ...
Paleosols record dry and humid paleoenvironments during the Upper Pleistocene in the Brazilian Pantanal
(2022-05-01)
Information on Quaternary landscapes and paleoenvironmental changes in the interior of Brazil are scarce. One of such areas, particularly sensitive to these variations, is the modern tropical Pantanal wetland, whose alluvial ...
Geochronological and paleoenvironmental reconstruction of colluvial deposits in a cuesta landscape in south-eastern Brazil
(2022-04-01)
The classic models of cuesta evolution in south-eastern Brazil have temporal gaps in their denudation chronology. Here, we analyzed the colluvial deposits located on the rim of the Serra Geral escarpments in the Paraná ...
Signature of climatic differentiation on mitochondrial DNA of Drosophila sturtevanti
(2022-01-01)
Pleistocene climatic changes have played a major role in the evolution of Brazilian Atlantic Forest and South America biodiversity but their impacts on the genetic structure of widely distributed species remain unclear. ...
Paleoenvironmental changes in the semiarid coast of Chile (∼32°S) during the last 6200 cal years inferred from a swamp-forest pollen record
(2002)
Pollen analysis of two sediment records from a coastal swamp forest site in the Chilean semiarid region (31°50′S; 71°28′W) shows an alternation of dry and wet phases during the past ∼6100 cal yr B.P. The most prominent ...
Dust fluxes and iron fertilization in Holocene and Last Glacial Maximum climates
(Amer Geophysical Union, 2015)
Mineral dust aerosols play a major role in present and past climates. To date, we rely on climate
models for estimates of dust fluxes to calculate the impact of airborne micronutrients on
biogeochemical cycles. Here we ...