A 370,000-year record of vegetation and fire history around Lake Titicaca (Bolivia/Peru)
Fossil pollen and charcoal analyses of sediments from Lake Titicaca, Peru/Bolivia, provide a record of palaeoclimatic variation spanning four full glacial cycles. Pollen, aquatic microfossils, and charcoal, as well as previously published data including diatom assemblages, carbonate content, and stable carbon isotopic ratios of organic carbon, indicate that interglacials were warm and dry whereas the peaks of glacials were cold and wet. Each of the interglacials documented in the record are somewhat different, with those of MIS 5e and MIS 9 inducing lower lake levels and a drier vegetation signature than those of MIS 7 and 1. The presence of charcoal particles in sediments deposited during previous interglacials provides evidence of the long-term role of fire in shaping Andean ecosystems. © 2011 Elsevier B.V.
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- Paleontology
- 4301 Archaeology
- 3709 Physical geography and environmental geoscience
- 0603 Evolutionary Biology
- 0602 Ecology
- 0403 Geology
Citation
Published In
DOI
ISSN
Publication Date
Volume
Issue
Start / End Page
Related Subject Headings
- Paleontology
- 4301 Archaeology
- 3709 Physical geography and environmental geoscience
- 0603 Evolutionary Biology
- 0602 Ecology
- 0403 Geology