Hanselman, Jennifer A.; Bush, Mark B.; Gosling, William D.; Collins, Aaron; Knox, Christopher; Baker, Paul A. and Fritz, Sheri C.
|DOI (Digital Object Identifier) Link:||http://dx.doi.org/doi:10.1016/j.palaeo.2011.03.002|
|Google Scholar:||Look up in Google Scholar|
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.
|Item Type:||Journal Article|
|Copyright Holders:||2011 Elsevier B.V.|
|Funders:||National Science Foundation (ATM 0317539, AGS 0602329, EAR 0602154)|
|Keywords:||Andes; climate change; fire; fossil pollen; fossil charcoal; interglacial|
|Academic Unit/Department:||Science > Environment, Earth and Ecosystems|
|Interdisciplinary Research Centre:||OpenSpace Research Centre (OSRC)
Centre for Earth, Planetary, Space and Astronomical Research (CEPSAR)
|Depositing User:||William Gosling|
|Date Deposited:||18 Apr 2011 10:04|
|Last Modified:||16 Nov 2012 16:37|
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