An estimated 90 to 95% of Indigenous people in Amazonia died after European contact. This
population collapse is postulated to have caused decreases in atmospheric carbon dioxide …

Humans have been present in the Andes since about 12,000 calibrated years before
present (cal yr BP), transitioning from hunter-gatherers to agropastoralist societies in the mid …

The magnitude of change in climatic conditions and vegetation response to the last
deglaciation in various parts of tropical Amazonia is poorly understood and controversial …

A large amount of dust from the Sahara reaches the Amazon Basin, as observed with
satellite imagery. This dust is thought to carry micronutrients that could help fertilize the …

Background Fire is known to affect forest biodiversity, carbon storage, and public health
today; however, comparable fire histories from across forest regions in Amazonia are …

The Amazon forest is increasingly vulnerable to dieback and encroachment of grasslands
and agricultural fields. Threats to these forested ecosystems include drying, deforestation …

Abstract A 370,000-year paleoecological history of fire spanning four glacial cycles provides
evidence of plant migration in response to Andean climate change. Charcoal, an indicator of …

This chapter presents the first attempt at a phytosociological analysis of forests in the upper
Rio Negro (north-western Amazon) and adjacent south-western Orinoco basins, based on …

Paleoecological analysis of three lake sediment cores from the Roraima savannas in
northern Brazil revealed systems dominated by Poaceae pollen throughout most of the …

Societal Impact Statement Global climate models that incorporate carbon sources and sinks
usually consider that forest uptake of carbon is in a state of equilibrium. Both historical and …