Expansion of canopy-forming willows over the twentieth century on Herschel Island, Yukon Territory, Canada.
Canopy-forming shrubs are reported to be increasing at sites around the circumpolar Arctic. Our results indicate expansion in canopy cover and height of willows on Herschel Island located at 70 degrees north on the western Arctic coast of the Yukon Territory. We examined historic photographs, repeat...
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2011
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Online Access: | https://researchprofiles.canberra.edu.au/en/publications/b550fa0f-d6cb-4482-991f-9bd9906ad369 https://doi.org/10.1007/s13280-011-0168-y https://researchsystem.canberra.edu.au/ws/files/12667756/s13280_011_0168_y.pdf |
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ftcanberrauncris:oai:pure.atira.dk:publications/b550fa0f-d6cb-4482-991f-9bd9906ad369 2024-10-06T13:46:12+00:00 Expansion of canopy-forming willows over the twentieth century on Herschel Island, Yukon Territory, Canada. Myers-Smith, Isla Hik, David Kennedy, Catherine Cooley, Dorothy Johnstone, Jill Kenney, Alice KREBS, Charles 2011 application/pdf https://researchprofiles.canberra.edu.au/en/publications/b550fa0f-d6cb-4482-991f-9bd9906ad369 https://doi.org/10.1007/s13280-011-0168-y https://researchsystem.canberra.edu.au/ws/files/12667756/s13280_011_0168_y.pdf eng eng info:eu-repo/semantics/closedAccess Myers-Smith , I , Hik , D , Kennedy , C , Cooley , D , Johnstone , J , Kenney , A & KREBS , C 2011 , ' Expansion of canopy-forming willows over the twentieth century on Herschel Island, Yukon Territory, Canada. ' , Ambio , vol. 40 , no. 6 , pp. 610-623 . https://doi.org/10.1007/s13280-011-0168-y article 2011 ftcanberrauncris https://doi.org/10.1007/s13280-011-0168-y 2024-09-11T23:37:07Z Canopy-forming shrubs are reported to be increasing at sites around the circumpolar Arctic. Our results indicate expansion in canopy cover and height of willows on Herschel Island located at 70 degrees north on the western Arctic coast of the Yukon Territory. We examined historic photographs, repeated vegetation surveys, and conducted monitoring of long-term plots and found evidence of increases of each of the dominant canopy-forming willow species (Salix richardsonii, Salix glauca and Salix pulchra), during the twentieth century. A simple model of patch initiation indicates that the majority of willow patches for each of these species became established between 1910 and 1960, with stem ages and maximum growth rates indicating that some patches could have established as late as the 1980s. Collectively, these results suggest that willow species are increasing in canopy cover and height on Herschel Island. We did not find evidence that expansion of willow patches is currently limited by herbivory, disease, or growing conditions. Article in Journal/Newspaper Arctic Herschel Herschel Island Yukon University of Canberra Research Portal Arctic Yukon Canada Herschel Island ENVELOPE(-139.089,-139.089,69.583,69.583) AMBIO 40 6 610 623 |
institution |
Open Polar |
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University of Canberra Research Portal |
op_collection_id |
ftcanberrauncris |
language |
English |
description |
Canopy-forming shrubs are reported to be increasing at sites around the circumpolar Arctic. Our results indicate expansion in canopy cover and height of willows on Herschel Island located at 70 degrees north on the western Arctic coast of the Yukon Territory. We examined historic photographs, repeated vegetation surveys, and conducted monitoring of long-term plots and found evidence of increases of each of the dominant canopy-forming willow species (Salix richardsonii, Salix glauca and Salix pulchra), during the twentieth century. A simple model of patch initiation indicates that the majority of willow patches for each of these species became established between 1910 and 1960, with stem ages and maximum growth rates indicating that some patches could have established as late as the 1980s. Collectively, these results suggest that willow species are increasing in canopy cover and height on Herschel Island. We did not find evidence that expansion of willow patches is currently limited by herbivory, disease, or growing conditions. |
format |
Article in Journal/Newspaper |
author |
Myers-Smith, Isla Hik, David Kennedy, Catherine Cooley, Dorothy Johnstone, Jill Kenney, Alice KREBS, Charles |
spellingShingle |
Myers-Smith, Isla Hik, David Kennedy, Catherine Cooley, Dorothy Johnstone, Jill Kenney, Alice KREBS, Charles Expansion of canopy-forming willows over the twentieth century on Herschel Island, Yukon Territory, Canada. |
author_facet |
Myers-Smith, Isla Hik, David Kennedy, Catherine Cooley, Dorothy Johnstone, Jill Kenney, Alice KREBS, Charles |
author_sort |
Myers-Smith, Isla |
title |
Expansion of canopy-forming willows over the twentieth century on Herschel Island, Yukon Territory, Canada. |
title_short |
Expansion of canopy-forming willows over the twentieth century on Herschel Island, Yukon Territory, Canada. |
title_full |
Expansion of canopy-forming willows over the twentieth century on Herschel Island, Yukon Territory, Canada. |
title_fullStr |
Expansion of canopy-forming willows over the twentieth century on Herschel Island, Yukon Territory, Canada. |
title_full_unstemmed |
Expansion of canopy-forming willows over the twentieth century on Herschel Island, Yukon Territory, Canada. |
title_sort |
expansion of canopy-forming willows over the twentieth century on herschel island, yukon territory, canada. |
publishDate |
2011 |
url |
https://researchprofiles.canberra.edu.au/en/publications/b550fa0f-d6cb-4482-991f-9bd9906ad369 https://doi.org/10.1007/s13280-011-0168-y https://researchsystem.canberra.edu.au/ws/files/12667756/s13280_011_0168_y.pdf |
long_lat |
ENVELOPE(-139.089,-139.089,69.583,69.583) |
geographic |
Arctic Yukon Canada Herschel Island |
geographic_facet |
Arctic Yukon Canada Herschel Island |
genre |
Arctic Herschel Herschel Island Yukon |
genre_facet |
Arctic Herschel Herschel Island Yukon |
op_source |
Myers-Smith , I , Hik , D , Kennedy , C , Cooley , D , Johnstone , J , Kenney , A & KREBS , C 2011 , ' Expansion of canopy-forming willows over the twentieth century on Herschel Island, Yukon Territory, Canada. ' , Ambio , vol. 40 , no. 6 , pp. 610-623 . https://doi.org/10.1007/s13280-011-0168-y |
op_rights |
info:eu-repo/semantics/closedAccess |
op_doi |
https://doi.org/10.1007/s13280-011-0168-y |
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AMBIO |
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40 |
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6 |
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610 |
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623 |
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1812174514284396544 |