Plant communities of a tussock tundra landscape in the Brooks Range Foothills, Alaska
Abstract. We present the first vegetation analysis from the Arctic Foothills of northern Alaska according to the Braun‐Blanquet approach. The data are from the Imnavait Creek and Toolik Lake regions. We focus on associations of dry and mesic upland surfaces and moderate snow accumulation sites; othe...
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crwiley:10.2307/3236198 2024-09-09T19:22:51+00:00 Plant communities of a tussock tundra landscape in the Brooks Range Foothills, Alaska Walker, Marilyn D. Walker, Donald A. Auerbach, Nancy A. 1994 http://dx.doi.org/10.2307/3236198 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.2307%2F3236198 https://onlinelibrary.wiley.com/doi/pdf/10.2307/3236198 en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor Journal of Vegetation Science volume 5, issue 6, page 843-866 ISSN 1100-9233 1654-1103 journal-article 1994 crwiley https://doi.org/10.2307/3236198 2024-07-11T04:36:56Z Abstract. We present the first vegetation analysis from the Arctic Foothills of northern Alaska according to the Braun‐Blanquet approach. The data are from the Imnavait Creek and Toolik Lake regions. We focus on associations of dry and mesic upland surfaces and moderate snow accumulation sites; other upland plant communities, i.e. those of blockfields, non‐sorted circles, and water tracks, are briefly described. Summary floristic information is presented in a synoptic table. Five associations and 15 community types are tentatively placed into seven existing syntaxonomical classes. The community descriptions are arranged according to habitat: dry exposed acidic sites, moist acidic shallow snowbeds, moist non‐acidic snowbeds, moist acidic uplands, and moist non‐acidic uplands. Many of the communities are Beringian vicariants of associations previously described from Greenland and the European Arctic. The described communities have a widespread distribution in northern Alaska. The relationship of the associations to complex environmental gradients are analyzed using Detrended Correspondence Analysis. Community composition is controlled primarily by mesotopographic relationships (slope position and soil moisture), microscale disturbances, and factors related to long‐term landscape evolution. Article in Journal/Newspaper Arctic Brooks Range Greenland Tundra Alaska Wiley Online Library Arctic Greenland Journal of Vegetation Science 5 6 843 866 |
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Open Polar |
collection |
Wiley Online Library |
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crwiley |
language |
English |
description |
Abstract. We present the first vegetation analysis from the Arctic Foothills of northern Alaska according to the Braun‐Blanquet approach. The data are from the Imnavait Creek and Toolik Lake regions. We focus on associations of dry and mesic upland surfaces and moderate snow accumulation sites; other upland plant communities, i.e. those of blockfields, non‐sorted circles, and water tracks, are briefly described. Summary floristic information is presented in a synoptic table. Five associations and 15 community types are tentatively placed into seven existing syntaxonomical classes. The community descriptions are arranged according to habitat: dry exposed acidic sites, moist acidic shallow snowbeds, moist non‐acidic snowbeds, moist acidic uplands, and moist non‐acidic uplands. Many of the communities are Beringian vicariants of associations previously described from Greenland and the European Arctic. The described communities have a widespread distribution in northern Alaska. The relationship of the associations to complex environmental gradients are analyzed using Detrended Correspondence Analysis. Community composition is controlled primarily by mesotopographic relationships (slope position and soil moisture), microscale disturbances, and factors related to long‐term landscape evolution. |
format |
Article in Journal/Newspaper |
author |
Walker, Marilyn D. Walker, Donald A. Auerbach, Nancy A. |
spellingShingle |
Walker, Marilyn D. Walker, Donald A. Auerbach, Nancy A. Plant communities of a tussock tundra landscape in the Brooks Range Foothills, Alaska |
author_facet |
Walker, Marilyn D. Walker, Donald A. Auerbach, Nancy A. |
author_sort |
Walker, Marilyn D. |
title |
Plant communities of a tussock tundra landscape in the Brooks Range Foothills, Alaska |
title_short |
Plant communities of a tussock tundra landscape in the Brooks Range Foothills, Alaska |
title_full |
Plant communities of a tussock tundra landscape in the Brooks Range Foothills, Alaska |
title_fullStr |
Plant communities of a tussock tundra landscape in the Brooks Range Foothills, Alaska |
title_full_unstemmed |
Plant communities of a tussock tundra landscape in the Brooks Range Foothills, Alaska |
title_sort |
plant communities of a tussock tundra landscape in the brooks range foothills, alaska |
publisher |
Wiley |
publishDate |
1994 |
url |
http://dx.doi.org/10.2307/3236198 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.2307%2F3236198 https://onlinelibrary.wiley.com/doi/pdf/10.2307/3236198 |
geographic |
Arctic Greenland |
geographic_facet |
Arctic Greenland |
genre |
Arctic Brooks Range Greenland Tundra Alaska |
genre_facet |
Arctic Brooks Range Greenland Tundra Alaska |
op_source |
Journal of Vegetation Science volume 5, issue 6, page 843-866 ISSN 1100-9233 1654-1103 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.2307/3236198 |
container_title |
Journal of Vegetation Science |
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5 |
container_issue |
6 |
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843 |
op_container_end_page |
866 |
_version_ |
1809763198568497152 |