Goring, Simon J , Mathewes, Rolf W .
Revisiting the paleoclimate of southwestern British Columbia: New tools, new interpretations.
Paleoclimatic and paleoecological reconstructions are receiving increased attention as a result of our need to better understand vegetation and hydrological responses to future climate change. The development of improved models for reconstructing paleoclimatic and paleoecological histories using pollen analogues has improved our understanding of postglacial environmental changes in south-western British Columbia. We re-examined the fossil pollen record of Marion and Surprise Lakes near Vancouver in light of a newly developed modern pollen database and multivariate analytical methods that can reconstruct past temperature and precipitation parameters. Our analyses reveal that for this coastal locality, mid-Holocene mean annual precipitation was higher than previously suggested, based on the pollen evidence and increased deposition of detritus washed into Marion Lake. The ecological response of these sites to increased precipitation is shown with reference to the modern biogeoclimatic system of British Columbia.
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1 - Simon Fraser University, Biological Sciences, 8888 University Dr, Burnaby, BC, V5A 1S6, Canada
Presentation Type: Oral Paper:Papers for Sections
Location: Council Chambers/SUB
Date: Monday, July 28th, 2008
Time: 5:00 PM