Modern pollen spectra from lakes in arctic western Canada
Fifty-four samples of modern sediment from Banks Island and the Melville–Horton region of the Northwest Territories illustrate the major features of pollen deposition from the high to low arctic. Modern pollen deposition in the high arctic of Banks Island is characterized by up to 14% windblown tree...
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Language: | English |
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Canadian Science Publishing
1987
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Online Access: | http://dx.doi.org/10.1139/b87-220 http://www.nrcresearchpress.com/doi/pdf/10.1139/b87-220 |
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crcansciencepubl:10.1139/b87-220 2023-12-17T10:23:56+01:00 Modern pollen spectra from lakes in arctic western Canada Ritchie, J. C. Hadden, K. A. Gajewski, K. 1987 http://dx.doi.org/10.1139/b87-220 http://www.nrcresearchpress.com/doi/pdf/10.1139/b87-220 en eng Canadian Science Publishing http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining Canadian Journal of Botany volume 65, issue 8, page 1605-1613 ISSN 0008-4026 Plant Science journal-article 1987 crcansciencepubl https://doi.org/10.1139/b87-220 2023-11-19T13:38:56Z Fifty-four samples of modern sediment from Banks Island and the Melville–Horton region of the Northwest Territories illustrate the major features of pollen deposition from the high to low arctic. Modern pollen deposition in the high arctic of Banks Island is characterized by up to 14% windblown tree pollen. Indicator taxa of the high and mid arctic include Oxyria (<5–23%), Saxifragaceae, Saxifraga oppositifolia, and Cruciferae (all up to 8%) and Dryas (up to 3%). Arboreal pollen increases to 60% in low-arctic and subarctic samples. Pollen concentration decreases from between 3 500 and 20 000 in the low arctic to less than 5 000 grains/cm 3 in the high and mid arctic. Pollen spectra from the Late Glacial of northwestern Canada differ from those of the modern high and mid arctic not only by the absence of trees and shrubs but also in the relative proportions of Artemisia and of such indicator taxa as Oxyria and Saxifragaceae. Article in Journal/Newspaper Arctic Banks Island Northwest Territories Saxifraga oppositifolia Subarctic Canadian Science Publishing (via Crossref) Arctic Northwest Territories Canada Canadian Journal of Botany 65 8 1605 1613 |
institution |
Open Polar |
collection |
Canadian Science Publishing (via Crossref) |
op_collection_id |
crcansciencepubl |
language |
English |
topic |
Plant Science |
spellingShingle |
Plant Science Ritchie, J. C. Hadden, K. A. Gajewski, K. Modern pollen spectra from lakes in arctic western Canada |
topic_facet |
Plant Science |
description |
Fifty-four samples of modern sediment from Banks Island and the Melville–Horton region of the Northwest Territories illustrate the major features of pollen deposition from the high to low arctic. Modern pollen deposition in the high arctic of Banks Island is characterized by up to 14% windblown tree pollen. Indicator taxa of the high and mid arctic include Oxyria (<5–23%), Saxifragaceae, Saxifraga oppositifolia, and Cruciferae (all up to 8%) and Dryas (up to 3%). Arboreal pollen increases to 60% in low-arctic and subarctic samples. Pollen concentration decreases from between 3 500 and 20 000 in the low arctic to less than 5 000 grains/cm 3 in the high and mid arctic. Pollen spectra from the Late Glacial of northwestern Canada differ from those of the modern high and mid arctic not only by the absence of trees and shrubs but also in the relative proportions of Artemisia and of such indicator taxa as Oxyria and Saxifragaceae. |
format |
Article in Journal/Newspaper |
author |
Ritchie, J. C. Hadden, K. A. Gajewski, K. |
author_facet |
Ritchie, J. C. Hadden, K. A. Gajewski, K. |
author_sort |
Ritchie, J. C. |
title |
Modern pollen spectra from lakes in arctic western Canada |
title_short |
Modern pollen spectra from lakes in arctic western Canada |
title_full |
Modern pollen spectra from lakes in arctic western Canada |
title_fullStr |
Modern pollen spectra from lakes in arctic western Canada |
title_full_unstemmed |
Modern pollen spectra from lakes in arctic western Canada |
title_sort |
modern pollen spectra from lakes in arctic western canada |
publisher |
Canadian Science Publishing |
publishDate |
1987 |
url |
http://dx.doi.org/10.1139/b87-220 http://www.nrcresearchpress.com/doi/pdf/10.1139/b87-220 |
geographic |
Arctic Northwest Territories Canada |
geographic_facet |
Arctic Northwest Territories Canada |
genre |
Arctic Banks Island Northwest Territories Saxifraga oppositifolia Subarctic |
genre_facet |
Arctic Banks Island Northwest Territories Saxifraga oppositifolia Subarctic |
op_source |
Canadian Journal of Botany volume 65, issue 8, page 1605-1613 ISSN 0008-4026 |
op_rights |
http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining |
op_doi |
https://doi.org/10.1139/b87-220 |
container_title |
Canadian Journal of Botany |
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65 |
container_issue |
8 |
container_start_page |
1605 |
op_container_end_page |
1613 |
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1785561400618254336 |