Fossils from Lake Sediments in Northern Québec and Labrador: A Window into Past Climate Changes
. The overall objectives of my study are 1) to establish a high-resolution temporal reconstruction of environmental and climatic impacts on aquatic conditions at three sites, each at a different latitude and in a different ecoclimatic zone; 2) to develop a spatial-temporal image of postglacial envir...
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The Arctic Institute of North America
2001
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ftunivcalgaryojs:oai:journalhosting.ucalgary.ca:article/63859 2023-05-15T14:19:07+02:00 Fossils from Lake Sediments in Northern Québec and Labrador: A Window into Past Climate Changes Fallu, Marie-Andrée 2001-01-01 application/pdf https://journalhosting.ucalgary.ca/index.php/arctic/article/view/63859 eng eng The Arctic Institute of North America https://journalhosting.ucalgary.ca/index.php/arctic/article/view/63859/47794 https://journalhosting.ucalgary.ca/index.php/arctic/article/view/63859 ARCTIC; Vol. 54 No. 4 (2001): December: 357–480; 468-471 1923-1245 0004-0843 Climate change Diatoms Bottom sediments Lakes Diptera Temperature Palynology Chironomidae Cores Animal distribution Palaeobotany Palaeogeography Labrador Kangiqsualujjuaq region Québec Schefferville region Sable Lac au (51 24 N 66 13 W) K2 Lake info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion research-article 2001 ftunivcalgaryojs 2022-03-22T21:21:09Z . The overall objectives of my study are 1) to establish a high-resolution temporal reconstruction of environmental and climatic impacts on aquatic conditions at three sites, each at a different latitude and in a different ecoclimatic zone; 2) to develop a spatial-temporal image of postglacial environmental changes in the Québec-Labrador region through the use of radiocarbon dating; and 3) to compare the synchronicity of several indicators (diatoms, chironomids, and pollen) in order to assess differences between the responses of aquatic and terrestrial organisms to climate change. . The first lake, K2 (informal name), is located at 58° 44' N, 65° 56' W, 6 km northeast of the town of Kangiqsualujjuaq and about 11 km southwest of Ungava Bay. The second lake, Oksana (informal name), is located at 54° 49 N, 66° 50' W, near Schefferville. The third lake, Lac au Sable at 51° 24' N, 66° 13' W, was sampled by researchers George A. King and Herb E. Wright (Limnological Research Center, University of Minnesota) and is located about 130 km north of Sept-Îles. The sediment cores from each lake were subsampled at 1 cm intervals, each representing a period of approximately 10 - 50 years. . So far, diatoms and chironomids have been underexploited as biological indicators of change in northern Québec-Labrador, and they will be increasingly used in future research. . Article in Journal/Newspaper Arctic Kangiqsualujjuaq Labrador region Ungava Bay University of Calgary Journal Hosting Kangiqsualujjuaq ENVELOPE(-65.948,-65.948,58.684,58.684) Second Lake ENVELOPE(-117.435,-117.435,62.100,62.100) Sept-Îles ENVELOPE(139.989,139.989,-66.661,-66.661) Ungava Bay ENVELOPE(-67.489,-67.489,59.498,59.498) ARCTIC 54 4 |
institution |
Open Polar |
collection |
University of Calgary Journal Hosting |
op_collection_id |
ftunivcalgaryojs |
language |
English |
topic |
Climate change Diatoms Bottom sediments Lakes Diptera Temperature Palynology Chironomidae Cores Animal distribution Palaeobotany Palaeogeography Labrador Kangiqsualujjuaq region Québec Schefferville region Sable Lac au (51 24 N 66 13 W) K2 Lake |
spellingShingle |
Climate change Diatoms Bottom sediments Lakes Diptera Temperature Palynology Chironomidae Cores Animal distribution Palaeobotany Palaeogeography Labrador Kangiqsualujjuaq region Québec Schefferville region Sable Lac au (51 24 N 66 13 W) K2 Lake Fallu, Marie-Andrée Fossils from Lake Sediments in Northern Québec and Labrador: A Window into Past Climate Changes |
topic_facet |
Climate change Diatoms Bottom sediments Lakes Diptera Temperature Palynology Chironomidae Cores Animal distribution Palaeobotany Palaeogeography Labrador Kangiqsualujjuaq region Québec Schefferville region Sable Lac au (51 24 N 66 13 W) K2 Lake |
description |
. The overall objectives of my study are 1) to establish a high-resolution temporal reconstruction of environmental and climatic impacts on aquatic conditions at three sites, each at a different latitude and in a different ecoclimatic zone; 2) to develop a spatial-temporal image of postglacial environmental changes in the Québec-Labrador region through the use of radiocarbon dating; and 3) to compare the synchronicity of several indicators (diatoms, chironomids, and pollen) in order to assess differences between the responses of aquatic and terrestrial organisms to climate change. . The first lake, K2 (informal name), is located at 58° 44' N, 65° 56' W, 6 km northeast of the town of Kangiqsualujjuaq and about 11 km southwest of Ungava Bay. The second lake, Oksana (informal name), is located at 54° 49 N, 66° 50' W, near Schefferville. The third lake, Lac au Sable at 51° 24' N, 66° 13' W, was sampled by researchers George A. King and Herb E. Wright (Limnological Research Center, University of Minnesota) and is located about 130 km north of Sept-Îles. The sediment cores from each lake were subsampled at 1 cm intervals, each representing a period of approximately 10 - 50 years. . So far, diatoms and chironomids have been underexploited as biological indicators of change in northern Québec-Labrador, and they will be increasingly used in future research. . |
format |
Article in Journal/Newspaper |
author |
Fallu, Marie-Andrée |
author_facet |
Fallu, Marie-Andrée |
author_sort |
Fallu, Marie-Andrée |
title |
Fossils from Lake Sediments in Northern Québec and Labrador: A Window into Past Climate Changes |
title_short |
Fossils from Lake Sediments in Northern Québec and Labrador: A Window into Past Climate Changes |
title_full |
Fossils from Lake Sediments in Northern Québec and Labrador: A Window into Past Climate Changes |
title_fullStr |
Fossils from Lake Sediments in Northern Québec and Labrador: A Window into Past Climate Changes |
title_full_unstemmed |
Fossils from Lake Sediments in Northern Québec and Labrador: A Window into Past Climate Changes |
title_sort |
fossils from lake sediments in northern québec and labrador: a window into past climate changes |
publisher |
The Arctic Institute of North America |
publishDate |
2001 |
url |
https://journalhosting.ucalgary.ca/index.php/arctic/article/view/63859 |
long_lat |
ENVELOPE(-65.948,-65.948,58.684,58.684) ENVELOPE(-117.435,-117.435,62.100,62.100) ENVELOPE(139.989,139.989,-66.661,-66.661) ENVELOPE(-67.489,-67.489,59.498,59.498) |
geographic |
Kangiqsualujjuaq Second Lake Sept-Îles Ungava Bay |
geographic_facet |
Kangiqsualujjuaq Second Lake Sept-Îles Ungava Bay |
genre |
Arctic Kangiqsualujjuaq Labrador region Ungava Bay |
genre_facet |
Arctic Kangiqsualujjuaq Labrador region Ungava Bay |
op_source |
ARCTIC; Vol. 54 No. 4 (2001): December: 357–480; 468-471 1923-1245 0004-0843 |
op_relation |
https://journalhosting.ucalgary.ca/index.php/arctic/article/view/63859/47794 https://journalhosting.ucalgary.ca/index.php/arctic/article/view/63859 |
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ARCTIC |
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