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Late-Holocene climate variability and ecosystem responses in Alaska inferred from high-resolution multiproxy sediment analyses at Grizzly Lake

Dates

Year
2015

Citation

Tinner, Willy, Beer, Ruth, Bigler, Christian, Clegg, Benjamin F., Jones, Richard T., Kaltenrieder, Petra, van Raden, Ulrike J., Gilli, Adrian, and Hu, Feng Sheng, 2015, Late-Holocene climate variability and ecosystem responses in Alaska inferred from high-resolution multiproxy sediment analyses at Grizzly Lake: Quaternary Science Reviews, v. 126, p. 41-56.

Summary

The late-Holocene shift from Picea glauca (white spruce) to Picea mariana (black spruce) forests marked the establishment of modern boreal forests in Alaska. To understand the patterns and drivers of this vegetational change and the associated late-Holocene environmental dynamics, we analyzed radiocarbon-dated sediments from Grizzly Lake for chironomids, diatoms, pollen, macrofossils, charcoal, element composition, particle size, and magnetic properties for the period 4100–1800 cal BP. Chironomid assemblages reveal two episodes of decreased July temperature, at ca. 3300–3150 (ca −1 °C) and 2900–2550 cal BP (ca −2 °C). These episodes coincided with climate change elsewhere in the Northern Hemisphere, atmospheric reorganization, and [...]

Contacts

Tags

Provenance

Data source
File Processing
File Process
Type
End Note
Reference Item
3397 record import test
Reference File
NWBLCC-20160406.xml

Additional Information

Identifiers

Type Scheme Key
DOI http://sciencebase.gov/vocab/identifierScheme http://dx.doi.org/10.1016/j.quascirev.2015.08.019
ISSN http://sciencebase.gov/vocab/identifierScheme 0277-3791

Citation Extension

journalQuaternary Science Reviews
parts
typeNotes
value11604
typePages
value41-56
typeVolume
value126
citationTypeJournal Article

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