The detailed palaeoecology of a mid‐Wisconsinan interstadial (ca. 32 000 14 C a BP) vegetation surface from interior Alaska
Abstract We present a multi‐proxy reconstruction from a well‐preserved vegetation surface (ca. 32 000 14 C a BP) from the Fox Permafrost tunnel near Fairbanks, Alaska. A thick litter layer of plant material on the vegetation surface is consistent with the vegetation lacking evidence of disturbance....
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crwiley:10.1002/jqs.1497 2024-06-02T08:13:06+00:00 The detailed palaeoecology of a mid‐Wisconsinan interstadial (ca. 32 000 14 C a BP) vegetation surface from interior Alaska Wooller, Matthew J. Zazula, Grant D. Blinnikov, Misha. Gaglioti, Benjamin. V. Bigelow, Nancy. H. Sanborn, Paul. Kuzmina, Svetlana. La Farge, Catherine. 2011 http://dx.doi.org/10.1002/jqs.1497 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1002%2Fjqs.1497 https://onlinelibrary.wiley.com/doi/pdf/10.1002/jqs.1497 en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor Journal of Quaternary Science volume 26, issue 7, page 746-756 ISSN 0267-8179 1099-1417 journal-article 2011 crwiley https://doi.org/10.1002/jqs.1497 2024-05-03T11:23:00Z Abstract We present a multi‐proxy reconstruction from a well‐preserved vegetation surface (ca. 32 000 14 C a BP) from the Fox Permafrost tunnel near Fairbanks, Alaska. A thick litter layer of plant material on the vegetation surface is consistent with the vegetation lacking evidence of disturbance. Plant macrofossils and graminoid cuticle analysis show the presence of a graminoid assemblage consistent with phytolith data. The pollen data indicate that trees were not local to the site and that Artemisia sp. was present in the region. The insect and bryophyte reconstructions are consistent with the vascular plant reconstruction, indicating the site was at least periodically wet. δ 13 C values from the graminoids present show a large range encompassing both the wet and dry range displayed by modern graminoids in Alaska. Sequential δ 13 C analyses conducted along the length of leaves attached to the vegetation surface indicate a seasonal shift towards relatively higher water use efficiency. The lower water use efficiency earlier in the growing season may have stemmed from the use of winter season meltwater by plants at the site – a scenario consistent with the site's cryostratigraphy. Our multi‐proxy reconstruction contributes to the limited palaeoecological data available for graminoid‐dominated vegetation present in Eastern Beringia and particularly the interior of Alaska during the mid‐Wisconsinan interstadial. Copyright © 2011 John Wiley & Sons, Ltd. Article in Journal/Newspaper permafrost Alaska Beringia Wiley Online Library Fairbanks Journal of Quaternary Science 26 7 746 756 |
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Open Polar |
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Wiley Online Library |
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crwiley |
language |
English |
description |
Abstract We present a multi‐proxy reconstruction from a well‐preserved vegetation surface (ca. 32 000 14 C a BP) from the Fox Permafrost tunnel near Fairbanks, Alaska. A thick litter layer of plant material on the vegetation surface is consistent with the vegetation lacking evidence of disturbance. Plant macrofossils and graminoid cuticle analysis show the presence of a graminoid assemblage consistent with phytolith data. The pollen data indicate that trees were not local to the site and that Artemisia sp. was present in the region. The insect and bryophyte reconstructions are consistent with the vascular plant reconstruction, indicating the site was at least periodically wet. δ 13 C values from the graminoids present show a large range encompassing both the wet and dry range displayed by modern graminoids in Alaska. Sequential δ 13 C analyses conducted along the length of leaves attached to the vegetation surface indicate a seasonal shift towards relatively higher water use efficiency. The lower water use efficiency earlier in the growing season may have stemmed from the use of winter season meltwater by plants at the site – a scenario consistent with the site's cryostratigraphy. Our multi‐proxy reconstruction contributes to the limited palaeoecological data available for graminoid‐dominated vegetation present in Eastern Beringia and particularly the interior of Alaska during the mid‐Wisconsinan interstadial. Copyright © 2011 John Wiley & Sons, Ltd. |
format |
Article in Journal/Newspaper |
author |
Wooller, Matthew J. Zazula, Grant D. Blinnikov, Misha. Gaglioti, Benjamin. V. Bigelow, Nancy. H. Sanborn, Paul. Kuzmina, Svetlana. La Farge, Catherine. |
spellingShingle |
Wooller, Matthew J. Zazula, Grant D. Blinnikov, Misha. Gaglioti, Benjamin. V. Bigelow, Nancy. H. Sanborn, Paul. Kuzmina, Svetlana. La Farge, Catherine. The detailed palaeoecology of a mid‐Wisconsinan interstadial (ca. 32 000 14 C a BP) vegetation surface from interior Alaska |
author_facet |
Wooller, Matthew J. Zazula, Grant D. Blinnikov, Misha. Gaglioti, Benjamin. V. Bigelow, Nancy. H. Sanborn, Paul. Kuzmina, Svetlana. La Farge, Catherine. |
author_sort |
Wooller, Matthew J. |
title |
The detailed palaeoecology of a mid‐Wisconsinan interstadial (ca. 32 000 14 C a BP) vegetation surface from interior Alaska |
title_short |
The detailed palaeoecology of a mid‐Wisconsinan interstadial (ca. 32 000 14 C a BP) vegetation surface from interior Alaska |
title_full |
The detailed palaeoecology of a mid‐Wisconsinan interstadial (ca. 32 000 14 C a BP) vegetation surface from interior Alaska |
title_fullStr |
The detailed palaeoecology of a mid‐Wisconsinan interstadial (ca. 32 000 14 C a BP) vegetation surface from interior Alaska |
title_full_unstemmed |
The detailed palaeoecology of a mid‐Wisconsinan interstadial (ca. 32 000 14 C a BP) vegetation surface from interior Alaska |
title_sort |
detailed palaeoecology of a mid‐wisconsinan interstadial (ca. 32 000 14 c a bp) vegetation surface from interior alaska |
publisher |
Wiley |
publishDate |
2011 |
url |
http://dx.doi.org/10.1002/jqs.1497 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1002%2Fjqs.1497 https://onlinelibrary.wiley.com/doi/pdf/10.1002/jqs.1497 |
geographic |
Fairbanks |
geographic_facet |
Fairbanks |
genre |
permafrost Alaska Beringia |
genre_facet |
permafrost Alaska Beringia |
op_source |
Journal of Quaternary Science volume 26, issue 7, page 746-756 ISSN 0267-8179 1099-1417 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1002/jqs.1497 |
container_title |
Journal of Quaternary Science |
container_volume |
26 |
container_issue |
7 |
container_start_page |
746 |
op_container_end_page |
756 |
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1800759764535214080 |