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Describing the postglacial pattern and rate of Picea expansion in Alaska using paleoecological records

Dates

Year
2003

Citation

Carlson, Lisa Jo, 2003, Describing the postglacial pattern and rate of Picea expansion in Alaska using paleoecological records: University of Washington.

Summary

Picea migration across Alaska was examined in three studies: an analysis of one paleoecological record, an assessment of stomates as a tool to detect first local occurrence, a quantification of Picea migration patterns from investigations of new metrics and uncertainty factors. Pollen, stomates and macrofossils were analyzed with a sediment core from Jan Lake, east-central Alaska. Picea arrival at Jan Lake is within 200 years of its arrival at other AMS-dated sites across eastern and central Alaska. Evidence is found for a slight mid-Holocene Picea decline at Jan Lake, intermediate in magnitude between no decline to the east and a larger decline to the west. Stomates were investigated as a proxy for local Picea tree presence. Stomates [...]

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  • LC MAP - Landscape Conservation Management and Analysis Portal
  • Northwest Boreal Landscape Conservation Cooperative

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