Understanding the climate impacts on decadal vegetation change in northern Alaska1
The Arctic is experiencing rapid climate change. This research documents changes to tundra vegetation near Atqasuk and Utqiaġvik, Alaska. At each location, 30 plots were sampled annually from 2010 to 2019 using a point frame. For every encounter, we recorded the height and classified it into eight g...
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Canadian Science Publishing
2022
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Online Access: | https://doi.org/10.1139/as-2020-0050 https://doaj.org/article/7e16153df5c7455997f8d64674d31470 |
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fttriple:oai:gotriple.eu:oai:doaj.org/article:7e16153df5c7455997f8d64674d31470 2023-05-15T14:22:20+02:00 Understanding the climate impacts on decadal vegetation change in northern Alaska1 Jacob A. Harris Robert D. Hollister Timothy F. Botting Craig E. Tweedie Katlyn R. Betway Jeremy L. May Robert T.S. Barrett Jenny A. Leibig Hana L. Christoffersen Sergio A. Vargas Mariana Orejel Tabatha L. Fuson 2022-09-01 https://doi.org/10.1139/as-2020-0050 https://doaj.org/article/7e16153df5c7455997f8d64674d31470 en fr eng fre Canadian Science Publishing doi:10.1139/as-2020-0050 2368-7460 https://doaj.org/article/7e16153df5c7455997f8d64674d31470 undefined Arctic Science, Vol 8, Iss 3, Pp 878-898 (2022) tundra vegetation change plant height climate change ITEX toundra envir geo Journal Article https://vocabularies.coar-repositories.org/resource_types/c_6501/ 2022 fttriple https://doi.org/10.1139/as-2020-0050 2023-01-22T19:11:53Z The Arctic is experiencing rapid climate change. This research documents changes to tundra vegetation near Atqasuk and Utqiaġvik, Alaska. At each location, 30 plots were sampled annually from 2010 to 2019 using a point frame. For every encounter, we recorded the height and classified it into eight groupings (deciduous shrubs, evergreen shrubs, forbs, graminoids, bryophytes, lichens, litter, and standing dead vegetation); for vascular plants we also identified the species. We found an increase in plant stature and cover over time, consistent with regional warming. Graminoid cover and height increased at both sites, with a 5-fold increase in cover in Atqasuk. At Atqasuk, the cover and height of shrubs and forbs increased. Species diversity decreased at both the sites. Year was generally the strongest predictor of vegetation change, suggesting a cumulative change over time; however, soil moisture and soil temperature were also predictors of vegetation change. We anticipate that plants in the region will continue to grow taller as the region warms, resulting in greater plant cover, especially of graminoids and shrubs. The increase in plant cover and accumulation of litter may negatively impact non-vascular plants. Continued changes in community structure will impact energy balance and carbon cycling and may have regional and global consequences. Article in Journal/Newspaper Arctic Arctic Climate change toundra Tundra Alaska Unknown Arctic Arctic Science 1 21 |
institution |
Open Polar |
collection |
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op_collection_id |
fttriple |
language |
English French |
topic |
tundra vegetation change plant height climate change ITEX toundra envir geo |
spellingShingle |
tundra vegetation change plant height climate change ITEX toundra envir geo Jacob A. Harris Robert D. Hollister Timothy F. Botting Craig E. Tweedie Katlyn R. Betway Jeremy L. May Robert T.S. Barrett Jenny A. Leibig Hana L. Christoffersen Sergio A. Vargas Mariana Orejel Tabatha L. Fuson Understanding the climate impacts on decadal vegetation change in northern Alaska1 |
topic_facet |
tundra vegetation change plant height climate change ITEX toundra envir geo |
description |
The Arctic is experiencing rapid climate change. This research documents changes to tundra vegetation near Atqasuk and Utqiaġvik, Alaska. At each location, 30 plots were sampled annually from 2010 to 2019 using a point frame. For every encounter, we recorded the height and classified it into eight groupings (deciduous shrubs, evergreen shrubs, forbs, graminoids, bryophytes, lichens, litter, and standing dead vegetation); for vascular plants we also identified the species. We found an increase in plant stature and cover over time, consistent with regional warming. Graminoid cover and height increased at both sites, with a 5-fold increase in cover in Atqasuk. At Atqasuk, the cover and height of shrubs and forbs increased. Species diversity decreased at both the sites. Year was generally the strongest predictor of vegetation change, suggesting a cumulative change over time; however, soil moisture and soil temperature were also predictors of vegetation change. We anticipate that plants in the region will continue to grow taller as the region warms, resulting in greater plant cover, especially of graminoids and shrubs. The increase in plant cover and accumulation of litter may negatively impact non-vascular plants. Continued changes in community structure will impact energy balance and carbon cycling and may have regional and global consequences. |
format |
Article in Journal/Newspaper |
author |
Jacob A. Harris Robert D. Hollister Timothy F. Botting Craig E. Tweedie Katlyn R. Betway Jeremy L. May Robert T.S. Barrett Jenny A. Leibig Hana L. Christoffersen Sergio A. Vargas Mariana Orejel Tabatha L. Fuson |
author_facet |
Jacob A. Harris Robert D. Hollister Timothy F. Botting Craig E. Tweedie Katlyn R. Betway Jeremy L. May Robert T.S. Barrett Jenny A. Leibig Hana L. Christoffersen Sergio A. Vargas Mariana Orejel Tabatha L. Fuson |
author_sort |
Jacob A. Harris |
title |
Understanding the climate impacts on decadal vegetation change in northern Alaska1 |
title_short |
Understanding the climate impacts on decadal vegetation change in northern Alaska1 |
title_full |
Understanding the climate impacts on decadal vegetation change in northern Alaska1 |
title_fullStr |
Understanding the climate impacts on decadal vegetation change in northern Alaska1 |
title_full_unstemmed |
Understanding the climate impacts on decadal vegetation change in northern Alaska1 |
title_sort |
understanding the climate impacts on decadal vegetation change in northern alaska1 |
publisher |
Canadian Science Publishing |
publishDate |
2022 |
url |
https://doi.org/10.1139/as-2020-0050 https://doaj.org/article/7e16153df5c7455997f8d64674d31470 |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic Arctic Climate change toundra Tundra Alaska |
genre_facet |
Arctic Arctic Climate change toundra Tundra Alaska |
op_source |
Arctic Science, Vol 8, Iss 3, Pp 878-898 (2022) |
op_relation |
doi:10.1139/as-2020-0050 2368-7460 https://doaj.org/article/7e16153df5c7455997f8d64674d31470 |
op_rights |
undefined |
op_doi |
https://doi.org/10.1139/as-2020-0050 |
container_title |
Arctic Science |
container_start_page |
1 |
op_container_end_page |
21 |
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1766294963759349760 |