A 370,000-year record of vegetation and fire history around Lake Titicaca (Bolivia/Peru)

Journal Article (Journal Article)

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.

Full Text

Duke Authors

Cited Authors

  • Hanselman, JA; Bush, MB; Gosling, WD; Collins, A; Knox, C; Baker, PA; Fritz, SC

Published Date

  • May 15, 2011

Published In

Volume / Issue

  • 305 / 1-4

Start / End Page

  • 201 - 214

International Standard Serial Number (ISSN)

  • 0031-0182

Digital Object Identifier (DOI)

  • 10.1016/j.palaeo.2011.03.002

Citation Source

  • Scopus