DISCUSSION: THE POSTGLACIAL DEVELOPMENT OF THE FLORA OF MANITOBA
An attempt is made to establish the development of the flora of Manitoba, Canada, after the complete extermination by the Wisconsin glacier of any preexisting vegetation.Based upon geology, palynology, and floristics, a theory is constructed that the ice was at first followed by a cold (marsh) grass...
Published in: | Canadian Journal of Botany |
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Canadian Science Publishing
1959
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Online Access: | http://dx.doi.org/10.1139/b59-048 http://www.nrcresearchpress.com/doi/pdf/10.1139/b59-048 |
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crcansciencepubl:10.1139/b59-048 2023-12-17T10:26:22+01:00 DISCUSSION: THE POSTGLACIAL DEVELOPMENT OF THE FLORA OF MANITOBA Löve, Doris 1959 http://dx.doi.org/10.1139/b59-048 http://www.nrcresearchpress.com/doi/pdf/10.1139/b59-048 en eng Canadian Science Publishing http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining Canadian Journal of Botany volume 37, issue 4, page 547-585 ISSN 0008-4026 Plant Science journal-article 1959 crcansciencepubl https://doi.org/10.1139/b59-048 2023-11-19T13:38:29Z An attempt is made to establish the development of the flora of Manitoba, Canada, after the complete extermination by the Wisconsin glacier of any preexisting vegetation.Based upon geology, palynology, and floristics, a theory is constructed that the ice was at first followed by a cold (marsh) grassland, covering the bottom of the drained Lake Agassiz I, and a riverine spruce (–pine) parkland of western origin, which persisted throughout the Valders period and the damming up of Lake Agassiz II. Around 9000 B.P. a deciduous forest flora started to fill in around the edges of Lake Agassiz II, and a pine–oak savanna occupied the drier portions of the upland. This flora reached its maximum north- and westwards distribution towards the peak of the Hypsithermal. Also during the Hypsithermal it is suggested that a western (–southwestern) prairie flora covered the bottom of the draining Lake Agassiz II, reaching its farthest extension towards the north and east. During the same time, the Arctic flora expanded over the Hudson's Bay Lowland. The last part to be covered by vegetation seems to have been the zone now called taiga, probably as late as 3000–4000 years ago. The spruce forest and its undervegetation seems to have arrived both from the west and from the east, and in recent times (from 2000 to 3000 B.P.) is in a stage of expansion, forcing itself into the deciduous zone, which in turn is expanding over the prairie, save for the checking activities of Man (fire and cultivation). Article in Journal/Newspaper Arctic glacier* taiga Canadian Science Publishing (via Crossref) Arctic Canada Parkland ENVELOPE(-120.570,-120.570,55.917,55.917) Valders ENVELOPE(15.406,15.406,67.303,67.303) Canadian Journal of Botany 37 4 547 585 |
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Open Polar |
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Canadian Science Publishing (via Crossref) |
op_collection_id |
crcansciencepubl |
language |
English |
topic |
Plant Science |
spellingShingle |
Plant Science Löve, Doris DISCUSSION: THE POSTGLACIAL DEVELOPMENT OF THE FLORA OF MANITOBA |
topic_facet |
Plant Science |
description |
An attempt is made to establish the development of the flora of Manitoba, Canada, after the complete extermination by the Wisconsin glacier of any preexisting vegetation.Based upon geology, palynology, and floristics, a theory is constructed that the ice was at first followed by a cold (marsh) grassland, covering the bottom of the drained Lake Agassiz I, and a riverine spruce (–pine) parkland of western origin, which persisted throughout the Valders period and the damming up of Lake Agassiz II. Around 9000 B.P. a deciduous forest flora started to fill in around the edges of Lake Agassiz II, and a pine–oak savanna occupied the drier portions of the upland. This flora reached its maximum north- and westwards distribution towards the peak of the Hypsithermal. Also during the Hypsithermal it is suggested that a western (–southwestern) prairie flora covered the bottom of the draining Lake Agassiz II, reaching its farthest extension towards the north and east. During the same time, the Arctic flora expanded over the Hudson's Bay Lowland. The last part to be covered by vegetation seems to have been the zone now called taiga, probably as late as 3000–4000 years ago. The spruce forest and its undervegetation seems to have arrived both from the west and from the east, and in recent times (from 2000 to 3000 B.P.) is in a stage of expansion, forcing itself into the deciduous zone, which in turn is expanding over the prairie, save for the checking activities of Man (fire and cultivation). |
format |
Article in Journal/Newspaper |
author |
Löve, Doris |
author_facet |
Löve, Doris |
author_sort |
Löve, Doris |
title |
DISCUSSION: THE POSTGLACIAL DEVELOPMENT OF THE FLORA OF MANITOBA |
title_short |
DISCUSSION: THE POSTGLACIAL DEVELOPMENT OF THE FLORA OF MANITOBA |
title_full |
DISCUSSION: THE POSTGLACIAL DEVELOPMENT OF THE FLORA OF MANITOBA |
title_fullStr |
DISCUSSION: THE POSTGLACIAL DEVELOPMENT OF THE FLORA OF MANITOBA |
title_full_unstemmed |
DISCUSSION: THE POSTGLACIAL DEVELOPMENT OF THE FLORA OF MANITOBA |
title_sort |
discussion: the postglacial development of the flora of manitoba |
publisher |
Canadian Science Publishing |
publishDate |
1959 |
url |
http://dx.doi.org/10.1139/b59-048 http://www.nrcresearchpress.com/doi/pdf/10.1139/b59-048 |
long_lat |
ENVELOPE(-120.570,-120.570,55.917,55.917) ENVELOPE(15.406,15.406,67.303,67.303) |
geographic |
Arctic Canada Parkland Valders |
geographic_facet |
Arctic Canada Parkland Valders |
genre |
Arctic glacier* taiga |
genre_facet |
Arctic glacier* taiga |
op_source |
Canadian Journal of Botany volume 37, issue 4, page 547-585 ISSN 0008-4026 |
op_rights |
http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining |
op_doi |
https://doi.org/10.1139/b59-048 |
container_title |
Canadian Journal of Botany |
container_volume |
37 |
container_issue |
4 |
container_start_page |
547 |
op_container_end_page |
585 |
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1785578095336488960 |