Late Quaternary Vegetational Change in the Kotzebue Sound Area, Northwestern Alaska
Two sediment cores from Kaiyak and Squirrel lakes in northwestern Alaska yielded pollen records that date to ca. 39,000 and 27,000 yr B.P., respectively. Between 39,000 and 14,000 yr B.P., the vegetation around these lakes was dominated by Gramineae and Cyperaceae with some Salix and possibly Betula...
Published in: | Quaternary Research |
---|---|
Main Author: | |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
Cambridge University Press (CUP)
1985
|
Subjects: | |
Online Access: | http://dx.doi.org/10.1016/0033-5894(85)90053-5 http://api.elsevier.com/content/article/PII:0033589485900535?httpAccept=text/xml http://api.elsevier.com/content/article/PII:0033589485900535?httpAccept=text/plain https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0033589400017749 |
id |
crcambridgeupr:10.1016/0033-5894(85)90053-5 |
---|---|
record_format |
openpolar |
spelling |
crcambridgeupr:10.1016/0033-5894(85)90053-5 2024-10-13T14:06:25+00:00 Late Quaternary Vegetational Change in the Kotzebue Sound Area, Northwestern Alaska Anderson, Patricia M. 1985 http://dx.doi.org/10.1016/0033-5894(85)90053-5 http://api.elsevier.com/content/article/PII:0033589485900535?httpAccept=text/xml http://api.elsevier.com/content/article/PII:0033589485900535?httpAccept=text/plain https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0033589400017749 en eng Cambridge University Press (CUP) https://www.cambridge.org/core/terms Quaternary Research volume 24, issue 3, page 307-321 ISSN 0033-5894 1096-0287 journal-article 1985 crcambridgeupr https://doi.org/10.1016/0033-5894(85)90053-5 2024-09-18T04:04:04Z Two sediment cores from Kaiyak and Squirrel lakes in northwestern Alaska yielded pollen records that date to ca. 39,000 and 27,000 yr B.P., respectively. Between 39,000 and 14,000 yr B.P., the vegetation around these lakes was dominated by Gramineae and Cyperaceae with some Salix and possibly Betula nana/glandulosa forming a local, shrub component of the vegetation. Betula pollen percentages increased about 14,000 yr B.P., indicating the presence of a birchdominated shrub tundra. Alnus pollen appeared at both sites between 9000 and 8000 yr B.P., and Picea pollen (mostly P. mariana ) arrived at Squirrel Lake about 5000 yr B.P. The current foresttundra mosaic around Squirrel Lake was established at this time, whereas shrub tundra existed near Kaiyak Lake throughout the Holocene. When compared to other pollen records from north-western North America, these cores (1) represent a meadow component of lowland. Beringian tundra between 39,000 and 14,000 yr B.P., (2) demonstrate an early Holocene arrival of Alnus in northwestern Alaska that predates most other Alnus horizons in northern Alaska or northwestern Canada, and (3) show an east-to-west migration of Picea across northern Alaska from 9000 to 5000 yr B.P. Article in Journal/Newspaper Betula nana Tundra Alaska Cambridge University Press Canada Squirrel Lakes ENVELOPE(-116.970,-116.970,63.634,63.634) Quaternary Research 24 3 307 321 |
institution |
Open Polar |
collection |
Cambridge University Press |
op_collection_id |
crcambridgeupr |
language |
English |
description |
Two sediment cores from Kaiyak and Squirrel lakes in northwestern Alaska yielded pollen records that date to ca. 39,000 and 27,000 yr B.P., respectively. Between 39,000 and 14,000 yr B.P., the vegetation around these lakes was dominated by Gramineae and Cyperaceae with some Salix and possibly Betula nana/glandulosa forming a local, shrub component of the vegetation. Betula pollen percentages increased about 14,000 yr B.P., indicating the presence of a birchdominated shrub tundra. Alnus pollen appeared at both sites between 9000 and 8000 yr B.P., and Picea pollen (mostly P. mariana ) arrived at Squirrel Lake about 5000 yr B.P. The current foresttundra mosaic around Squirrel Lake was established at this time, whereas shrub tundra existed near Kaiyak Lake throughout the Holocene. When compared to other pollen records from north-western North America, these cores (1) represent a meadow component of lowland. Beringian tundra between 39,000 and 14,000 yr B.P., (2) demonstrate an early Holocene arrival of Alnus in northwestern Alaska that predates most other Alnus horizons in northern Alaska or northwestern Canada, and (3) show an east-to-west migration of Picea across northern Alaska from 9000 to 5000 yr B.P. |
format |
Article in Journal/Newspaper |
author |
Anderson, Patricia M. |
spellingShingle |
Anderson, Patricia M. Late Quaternary Vegetational Change in the Kotzebue Sound Area, Northwestern Alaska |
author_facet |
Anderson, Patricia M. |
author_sort |
Anderson, Patricia M. |
title |
Late Quaternary Vegetational Change in the Kotzebue Sound Area, Northwestern Alaska |
title_short |
Late Quaternary Vegetational Change in the Kotzebue Sound Area, Northwestern Alaska |
title_full |
Late Quaternary Vegetational Change in the Kotzebue Sound Area, Northwestern Alaska |
title_fullStr |
Late Quaternary Vegetational Change in the Kotzebue Sound Area, Northwestern Alaska |
title_full_unstemmed |
Late Quaternary Vegetational Change in the Kotzebue Sound Area, Northwestern Alaska |
title_sort |
late quaternary vegetational change in the kotzebue sound area, northwestern alaska |
publisher |
Cambridge University Press (CUP) |
publishDate |
1985 |
url |
http://dx.doi.org/10.1016/0033-5894(85)90053-5 http://api.elsevier.com/content/article/PII:0033589485900535?httpAccept=text/xml http://api.elsevier.com/content/article/PII:0033589485900535?httpAccept=text/plain https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0033589400017749 |
long_lat |
ENVELOPE(-116.970,-116.970,63.634,63.634) |
geographic |
Canada Squirrel Lakes |
geographic_facet |
Canada Squirrel Lakes |
genre |
Betula nana Tundra Alaska |
genre_facet |
Betula nana Tundra Alaska |
op_source |
Quaternary Research volume 24, issue 3, page 307-321 ISSN 0033-5894 1096-0287 |
op_rights |
https://www.cambridge.org/core/terms |
op_doi |
https://doi.org/10.1016/0033-5894(85)90053-5 |
container_title |
Quaternary Research |
container_volume |
24 |
container_issue |
3 |
container_start_page |
307 |
op_container_end_page |
321 |
_version_ |
1812812555182145536 |