Ancient boreal forests under the environmental instability of the glacial to postglacial transition in the Great Lakes region (14 000 – 11 000 years BP)
Retreat of the Laurentide Ice Sheet 20 000 years ago tremendously altered environmental conditions and opened territory to the boreal spruce forest expansion. However, the details of forest colonization during the rapid climate warming and the adaptation of the newly developed stands to short coolin...
Published in: | Canadian Journal of Forest Research |
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Language: | English |
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Online Access: | http://dx.doi.org/10.1139/cjfr-2012-0339 http://www.nrcresearchpress.com/doi/full-xml/10.1139/cjfr-2012-0339 http://www.nrcresearchpress.com/doi/pdf/10.1139/cjfr-2012-0339 |
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crcansciencepubl:10.1139/cjfr-2012-0339 2024-06-23T07:53:47+00:00 Ancient boreal forests under the environmental instability of the glacial to postglacial transition in the Great Lakes region (14 000 – 11 000 years BP) Panyushkina, Irina P. Leavitt, Steven W. 2013 http://dx.doi.org/10.1139/cjfr-2012-0339 http://www.nrcresearchpress.com/doi/full-xml/10.1139/cjfr-2012-0339 http://www.nrcresearchpress.com/doi/pdf/10.1139/cjfr-2012-0339 en eng Canadian Science Publishing http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining Canadian Journal of Forest Research volume 43, issue 11, page 1032-1039 ISSN 0045-5067 1208-6037 journal-article 2013 crcansciencepubl https://doi.org/10.1139/cjfr-2012-0339 2024-06-13T04:10:51Z Retreat of the Laurentide Ice Sheet 20 000 years ago tremendously altered environmental conditions and opened territory to the boreal spruce forest expansion. However, the details of forest colonization during the rapid climate warming and the adaptation of the newly developed stands to short cooling episodes during the warming and degradation of the ice sheet are not known. Preservation of wood from the glacial to postglacial transition offers the opportunity for examination of high-frequency growth variability in response to hemispheric and local forcings on temperature and hydrology. Here we consider growth of spruce at three sites from the interior of Northern America developed at ca. 13 700, 12 100, and 11 300 calibrated years before present (cal years BP), with well-replicated tree-ring chronologies spanning from 116 to 310 years. The data show at least two generations of trees established at each of the sites promoted by short, warm intervals. The tree mortality was variously affected by both cold conditions and the influence of rising water table and sediment burial. The history of these stands indicates breaks in forest colonization following a century (or two) of successful migrations. Interestingly, the thinning of the spruce forest did not seem to open pioneering opportunities for other tree species at those times. Article in Journal/Newspaper Ice Sheet Canadian Science Publishing Canadian Journal of Forest Research 43 11 1032 1039 |
institution |
Open Polar |
collection |
Canadian Science Publishing |
op_collection_id |
crcansciencepubl |
language |
English |
description |
Retreat of the Laurentide Ice Sheet 20 000 years ago tremendously altered environmental conditions and opened territory to the boreal spruce forest expansion. However, the details of forest colonization during the rapid climate warming and the adaptation of the newly developed stands to short cooling episodes during the warming and degradation of the ice sheet are not known. Preservation of wood from the glacial to postglacial transition offers the opportunity for examination of high-frequency growth variability in response to hemispheric and local forcings on temperature and hydrology. Here we consider growth of spruce at three sites from the interior of Northern America developed at ca. 13 700, 12 100, and 11 300 calibrated years before present (cal years BP), with well-replicated tree-ring chronologies spanning from 116 to 310 years. The data show at least two generations of trees established at each of the sites promoted by short, warm intervals. The tree mortality was variously affected by both cold conditions and the influence of rising water table and sediment burial. The history of these stands indicates breaks in forest colonization following a century (or two) of successful migrations. Interestingly, the thinning of the spruce forest did not seem to open pioneering opportunities for other tree species at those times. |
format |
Article in Journal/Newspaper |
author |
Panyushkina, Irina P. Leavitt, Steven W. |
spellingShingle |
Panyushkina, Irina P. Leavitt, Steven W. Ancient boreal forests under the environmental instability of the glacial to postglacial transition in the Great Lakes region (14 000 – 11 000 years BP) |
author_facet |
Panyushkina, Irina P. Leavitt, Steven W. |
author_sort |
Panyushkina, Irina P. |
title |
Ancient boreal forests under the environmental instability of the glacial to postglacial transition in the Great Lakes region (14 000 – 11 000 years BP) |
title_short |
Ancient boreal forests under the environmental instability of the glacial to postglacial transition in the Great Lakes region (14 000 – 11 000 years BP) |
title_full |
Ancient boreal forests under the environmental instability of the glacial to postglacial transition in the Great Lakes region (14 000 – 11 000 years BP) |
title_fullStr |
Ancient boreal forests under the environmental instability of the glacial to postglacial transition in the Great Lakes region (14 000 – 11 000 years BP) |
title_full_unstemmed |
Ancient boreal forests under the environmental instability of the glacial to postglacial transition in the Great Lakes region (14 000 – 11 000 years BP) |
title_sort |
ancient boreal forests under the environmental instability of the glacial to postglacial transition in the great lakes region (14 000 – 11 000 years bp) |
publisher |
Canadian Science Publishing |
publishDate |
2013 |
url |
http://dx.doi.org/10.1139/cjfr-2012-0339 http://www.nrcresearchpress.com/doi/full-xml/10.1139/cjfr-2012-0339 http://www.nrcresearchpress.com/doi/pdf/10.1139/cjfr-2012-0339 |
genre |
Ice Sheet |
genre_facet |
Ice Sheet |
op_source |
Canadian Journal of Forest Research volume 43, issue 11, page 1032-1039 ISSN 0045-5067 1208-6037 |
op_rights |
http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining |
op_doi |
https://doi.org/10.1139/cjfr-2012-0339 |
container_title |
Canadian Journal of Forest Research |
container_volume |
43 |
container_issue |
11 |
container_start_page |
1032 |
op_container_end_page |
1039 |
_version_ |
1802645604467212288 |