Pollen diagrams from the Shumagin Islands and adjacent Alaska Peninsula, southwestern Alaska

• Published in: Boreas
• Main Author: HEUSSER, CALVIN J.
• Format: Article in Journal/Newspaper
• Language: English
• Published: Wiley 1983
• Subjects: Bering Land Bridge; Tundra; Alaska; Aleutian Islands; Beringia
• Online Access: http://dx.doi.org/10.1111/j.1502-3885.1983.tb00322.x; https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fj.1502-3885.1983.tb00322.x; https://onlinelibrary.wiley.com/doi/pdf/10.1111/j.1502-3885.1983.tb00322.x

Pollen diagrams of 10 peat sections taken in sedge tundra span as much as 10.730 radiocarbon years and show a varied sequence of pollen assemblages dominated by herbs and shrubs. Taxa, for the most part. belong to the Gramineae. Cyperaceae. Salix, Abuts, Beiula and Empelrum. The assemblages indicate scral changes in the vegetation, resulting from interaction of climate and of successive ashfalls from regional volcanoes, and suggest a patchwork of late Quaternary plant communities. This record from southernmost Beringia enlarges upon previous pollen records from the Aleutian Islands and from the southern part of the Bering land bridge region in western Alaska.