Holocene vegetation history of Banks Island, Northwest Territories, Canada

Citation
K. Gajewski et al., Holocene vegetation history of Banks Island, Northwest Territories, Canada, CAN J BOTAN, 78(4), 2000, pp. 430-436
Citations number
26
Categorie Soggetti
Plant Sciences
Journal title
CANADIAN JOURNAL OF BOTANY-REVUE CANADIENNE DE BOTANIQUE
ISSN journal
00084026 → ACNP
Volume
78
Issue
4
Year of publication
2000
Pages
430 - 436
Database
ISI
SICI code
0008-4026(200004)78:4<430:HVHOBI>2.0.ZU;2-Q
Abstract
Four pollen diagrams from Banks Island, Northwest Territories, provide the first records of the postglacial vegetation of the region. Chronologies are estimated from radiocarbon dates and by correlation of the exotic-pollen c urves to data from the mainland. The pollen stratigraphies from all sites c an be divided into three zones, where the middle zone, dating from 7000 to 2000 BP, corresponds to the warmest time. Although both the first and third zones correspond to cooler periods, the vegetation of the earliest zone wa s not identical to that of the latest, indicated by lower frequencies of ke y pollen types such as those of Dryas and Saxifraga.