The Holocene Paleoecology of Jenny Lake Area, Southwest Yukon, and Its Implications for Prehistory
The pollen stratigraphy of a core extracted from Jenny Lake, southwest Yukon, in 1984 has marked archaeological significance. Five palynological zones are identified as follows: Zone JL1, the oldest (ca. 12,500-9,500 B.P.), is a Betula shrub tundra assemblage; Zone JL2 (ca. 9,500-8,500 B.P.) an Alnu...
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ftunivcalgaryojs:oai:journalhosting.ucalgary.ca:article/64730 2023-05-15T14:19:13+02:00 The Holocene Paleoecology of Jenny Lake Area, Southwest Yukon, and Its Implications for Prehistory Stuart, Glenn S.L. Helmer, James W. Hills, L.V. 1989-01-01 application/pdf https://journalhosting.ucalgary.ca/index.php/arctic/article/view/64730 eng eng The Arctic Institute of North America https://journalhosting.ucalgary.ca/index.php/arctic/article/view/64730/48644 https://journalhosting.ucalgary.ca/index.php/arctic/article/view/64730 ARCTIC; Vol. 42 No. 4 (1989): December: 299–396; 347-353 1923-1245 0004-0843 Archaeology Bottom sediments Coring Palaeobotany Palaeoecology Palynology Recent epoch Jenny Lake region Yukon info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion research-article 1989 ftunivcalgaryojs 2022-03-22T21:21:53Z The pollen stratigraphy of a core extracted from Jenny Lake, southwest Yukon, in 1984 has marked archaeological significance. Five palynological zones are identified as follows: Zone JL1, the oldest (ca. 12,500-9,500 B.P.), is a Betula shrub tundra assemblage; Zone JL2 (ca. 9,500-8,500 B.P.) an Alnus shrub tundra; Zone JL3 (ca. 8,500-4,500 B.P.) a Picea forest; Zone JL4 (ca. 4,500-2,000 B.P.) a Picea-Alnus woodland; and JL5 (ca. 2,000 B.P.-present) a Picea forest. The widely held belief that the Kluane-Aishihik area of the SW Yukon was covered by extensive grasslands well into the Holocene period is not supported by the palynology of the Jenny Lake Core. Instead, palynological evidence suggests that the area, which initially was a Betula shrub tundra, then Alnus shrub tundra, became a Picea-dominated forest by approximately 8,500 B.P. and remained forested to the present. The hypothesis stating early prehistoric hunters and gatherers in the SW Yukon were adapted to extensive Holocene grasslands until ca. 3,300-2,600 B.P. will have to be modified in view of these findings.Key words: Yukon, paleoecology, palynology, archaeology Mots clés: Yukon, paléoécologie, palynologie, archéologie Article in Journal/Newspaper Arctic Tundra Yukon University of Calgary Journal Hosting Yukon Jenny ENVELOPE(-68.417,-68.417,-67.733,-67.733) Aishihik ENVELOPE(-137.512,-137.512,61.598,61.598) Jenny Lake ENVELOPE(-138.366,-138.366,61.044,61.044) ARCTIC 42 4 |
institution |
Open Polar |
collection |
University of Calgary Journal Hosting |
op_collection_id |
ftunivcalgaryojs |
language |
English |
topic |
Archaeology Bottom sediments Coring Palaeobotany Palaeoecology Palynology Recent epoch Jenny Lake region Yukon |
spellingShingle |
Archaeology Bottom sediments Coring Palaeobotany Palaeoecology Palynology Recent epoch Jenny Lake region Yukon Stuart, Glenn S.L. Helmer, James W. Hills, L.V. The Holocene Paleoecology of Jenny Lake Area, Southwest Yukon, and Its Implications for Prehistory |
topic_facet |
Archaeology Bottom sediments Coring Palaeobotany Palaeoecology Palynology Recent epoch Jenny Lake region Yukon |
description |
The pollen stratigraphy of a core extracted from Jenny Lake, southwest Yukon, in 1984 has marked archaeological significance. Five palynological zones are identified as follows: Zone JL1, the oldest (ca. 12,500-9,500 B.P.), is a Betula shrub tundra assemblage; Zone JL2 (ca. 9,500-8,500 B.P.) an Alnus shrub tundra; Zone JL3 (ca. 8,500-4,500 B.P.) a Picea forest; Zone JL4 (ca. 4,500-2,000 B.P.) a Picea-Alnus woodland; and JL5 (ca. 2,000 B.P.-present) a Picea forest. The widely held belief that the Kluane-Aishihik area of the SW Yukon was covered by extensive grasslands well into the Holocene period is not supported by the palynology of the Jenny Lake Core. Instead, palynological evidence suggests that the area, which initially was a Betula shrub tundra, then Alnus shrub tundra, became a Picea-dominated forest by approximately 8,500 B.P. and remained forested to the present. The hypothesis stating early prehistoric hunters and gatherers in the SW Yukon were adapted to extensive Holocene grasslands until ca. 3,300-2,600 B.P. will have to be modified in view of these findings.Key words: Yukon, paleoecology, palynology, archaeology Mots clés: Yukon, paléoécologie, palynologie, archéologie |
format |
Article in Journal/Newspaper |
author |
Stuart, Glenn S.L. Helmer, James W. Hills, L.V. |
author_facet |
Stuart, Glenn S.L. Helmer, James W. Hills, L.V. |
author_sort |
Stuart, Glenn S.L. |
title |
The Holocene Paleoecology of Jenny Lake Area, Southwest Yukon, and Its Implications for Prehistory |
title_short |
The Holocene Paleoecology of Jenny Lake Area, Southwest Yukon, and Its Implications for Prehistory |
title_full |
The Holocene Paleoecology of Jenny Lake Area, Southwest Yukon, and Its Implications for Prehistory |
title_fullStr |
The Holocene Paleoecology of Jenny Lake Area, Southwest Yukon, and Its Implications for Prehistory |
title_full_unstemmed |
The Holocene Paleoecology of Jenny Lake Area, Southwest Yukon, and Its Implications for Prehistory |
title_sort |
holocene paleoecology of jenny lake area, southwest yukon, and its implications for prehistory |
publisher |
The Arctic Institute of North America |
publishDate |
1989 |
url |
https://journalhosting.ucalgary.ca/index.php/arctic/article/view/64730 |
long_lat |
ENVELOPE(-68.417,-68.417,-67.733,-67.733) ENVELOPE(-137.512,-137.512,61.598,61.598) ENVELOPE(-138.366,-138.366,61.044,61.044) |
geographic |
Yukon Jenny Aishihik Jenny Lake |
geographic_facet |
Yukon Jenny Aishihik Jenny Lake |
genre |
Arctic Tundra Yukon |
genre_facet |
Arctic Tundra Yukon |
op_source |
ARCTIC; Vol. 42 No. 4 (1989): December: 299–396; 347-353 1923-1245 0004-0843 |
op_relation |
https://journalhosting.ucalgary.ca/index.php/arctic/article/view/64730/48644 https://journalhosting.ucalgary.ca/index.php/arctic/article/view/64730 |
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ARCTIC |
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42 |
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