Andean societies have undergone abrupt climate changes that affected their water resources and habitable or cultivable land. This is the case for Lake Titicaca, which has experienced fluctuations up to 20 metres during last three millennia. Although paleoenvironmental reconstructions provided valuable data on these lake level variations, resolution often not sufficient assess impact at human ti...

We compared the stratigraphy of sediment cores that span the last 13,000 yrs from three sites in the main basin of Lake Titicaca, Boliva/Peru as indicators of regional paleoclimate. The cores show similar patterns of change after ~6,400 calendar yrs before present (cal yr BP) but differ before that time. Site NE98-PC2, which is near the Rio Illave and its delta, shows differences in diatom spec...

temporal resolution must be both sufficiently extensive and Sediment cores collected from the southern basin of Lake Titifine-scaled to describe patterns that appear at the scale of caca (Bolivia/Peru) on a transect from 4.6 m above overflow level the processes of interest. When the affected processes are to 15.1 m below overflow level are used to identify a new centurycertain human activities,...

temporal resolution must be both sufficiently extensive and Sediment cores collected from the southern basin of Lake Titifine-scaled to describe patterns that appear at the scale of caca (Bolivia/Peru) on a transect from 4.6 m above overflow level the processes of interest. When the affected processes are to 15.1 m below overflow level are used to identify a new centurycertain human activities,...