Abstract Changes in insolation driven by precession and obliquity are considered the major
driver of tropical precipitation on orbital time scales, and responsible for vegetation and …

In the Southern Hemisphere, lacustrine sediments started to be deposited with the
beginning of the deglaciation at ca 19,000 calyrBP. At this time the region of Lake Caço was …

An overview of the archaeological data produced over the last decades for Brazil, coupled
with a background of recent paleoenvironmental studies, suggests that during the mid …

Tropical regions have been reported to play a key role in climate dynamics. To date,
however, there are uncertainties in the timing and the amplitude of the response of tropical …

A long terrestrial record, Colônia CO-3, from the Atlantic rainforest region in Brazil (23° 52′
S, 46° 42′ 20 ʺW, 900 m asl) registrates variations in the forest expansion during the last …

Northeastern Brazil represents a strategic area in terms of Quaternary records of
environmental changes in South America due to its distinct semi-arid climate in near …

Anthropogenic climate change driven by increased carbon emissions is leading to more
severe fire seasons and increasing the frequency of mega-fires in the Amazon. This has the …

The mid-Holocene (6000 calibrated years before present) is a key period in
palaeoclimatology because incoming summer insolation was lower than during the late …

In a recent JAS article (“A requiem for North American overkill”), Donald Grayson and David
Meltzer [39] attack Paul Martin's “overkill” hypothesis that humans caused America's …

The study place is in the Barreirinhas region, Maranhão State, northeastern Brazil. A
vegetation transect of 78 km was studied among four vegetation types: Restinga (coastal …