Responses of low Arctic tundra plant species to experimental manipulations: Differences between abiotic and biotic factors and between short- and long-term effects
Climate change in arctic tundra is projected to affect air temperature, snow depth, soil fertility, and caribou herbivory, which may alter plant community composition by shifting niche space to favor particular species’ life history strategies. We report responses of a Canadian mesic birch hummock t...
Published in: | Arctic, Antarctic, and Alpine Research |
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Taylor & Francis Group
2020
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Online Access: | https://doi.org/10.1080/15230430.2020.1815360 https://doaj.org/article/82325800a8564c8d87a37ef7d7f69994 |
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ftdoajarticles:oai:doaj.org/article:82325800a8564c8d87a37ef7d7f69994 2023-05-15T14:14:33+02:00 Responses of low Arctic tundra plant species to experimental manipulations: Differences between abiotic and biotic factors and between short- and long-term effects Qian Gu Paul Grogan 2020-01-01T00:00:00Z https://doi.org/10.1080/15230430.2020.1815360 https://doaj.org/article/82325800a8564c8d87a37ef7d7f69994 EN eng Taylor & Francis Group http://dx.doi.org/10.1080/15230430.2020.1815360 https://doaj.org/toc/1523-0430 https://doaj.org/toc/1938-4246 1523-0430 1938-4246 doi:10.1080/15230430.2020.1815360 https://doaj.org/article/82325800a8564c8d87a37ef7d7f69994 Arctic, Antarctic, and Alpine Research, Vol 52, Iss 1, Pp 524-540 (2020) climate change arctic tundra long-term biomass response shrub greening warming Environmental sciences GE1-350 Ecology QH540-549.5 article 2020 ftdoajarticles https://doi.org/10.1080/15230430.2020.1815360 2022-12-31T15:56:54Z Climate change in arctic tundra is projected to affect air temperature, snow depth, soil fertility, and caribou herbivory, which may alter plant community composition by shifting niche space to favor particular species’ life history strategies. We report responses of a Canadian mesic birch hummock tundra plant community to a range of manipulative experiments (greenhouse warming, fertilization, snow fence, and caribou exclosure treatments). Aboveground biomass of each plant species was measured in the same permanent 1 m2 areas using the point frame method in 2005, 2011, and 2017. Although the greenhouse treatment had few effects on individual species, total vascular plant community biomass was enhanced between 2011 and 2017. Furthermore, species’ biomass across all control plots was stable from 2005 to 2011 but increased significantly from 2011 to 2017, with air temperatures also warmer over that same period. Species responded to high-level nitrogen and high-level nitrogen and phosphorus combined additions, with deciduous shrubs and graminoids increasing and evergreen shrubs decreasing. The snow fences and caribou exclosures had little effect on species biomass. Although vegetation greening trends have been reported in arctic environments that are primarily influenced by maritime climate, our study is one of the first to provide plot-based evidence of recent plant biomass increases in the low Arctic’s continental interior. Article in Journal/Newspaper Antarctic and Alpine Research Arctic Arctic Climate change Tundra Directory of Open Access Journals: DOAJ Articles Arctic Arctic, Antarctic, and Alpine Research 52 1 524 540 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
climate change arctic tundra long-term biomass response shrub greening warming Environmental sciences GE1-350 Ecology QH540-549.5 |
spellingShingle |
climate change arctic tundra long-term biomass response shrub greening warming Environmental sciences GE1-350 Ecology QH540-549.5 Qian Gu Paul Grogan Responses of low Arctic tundra plant species to experimental manipulations: Differences between abiotic and biotic factors and between short- and long-term effects |
topic_facet |
climate change arctic tundra long-term biomass response shrub greening warming Environmental sciences GE1-350 Ecology QH540-549.5 |
description |
Climate change in arctic tundra is projected to affect air temperature, snow depth, soil fertility, and caribou herbivory, which may alter plant community composition by shifting niche space to favor particular species’ life history strategies. We report responses of a Canadian mesic birch hummock tundra plant community to a range of manipulative experiments (greenhouse warming, fertilization, snow fence, and caribou exclosure treatments). Aboveground biomass of each plant species was measured in the same permanent 1 m2 areas using the point frame method in 2005, 2011, and 2017. Although the greenhouse treatment had few effects on individual species, total vascular plant community biomass was enhanced between 2011 and 2017. Furthermore, species’ biomass across all control plots was stable from 2005 to 2011 but increased significantly from 2011 to 2017, with air temperatures also warmer over that same period. Species responded to high-level nitrogen and high-level nitrogen and phosphorus combined additions, with deciduous shrubs and graminoids increasing and evergreen shrubs decreasing. The snow fences and caribou exclosures had little effect on species biomass. Although vegetation greening trends have been reported in arctic environments that are primarily influenced by maritime climate, our study is one of the first to provide plot-based evidence of recent plant biomass increases in the low Arctic’s continental interior. |
format |
Article in Journal/Newspaper |
author |
Qian Gu Paul Grogan |
author_facet |
Qian Gu Paul Grogan |
author_sort |
Qian Gu |
title |
Responses of low Arctic tundra plant species to experimental manipulations: Differences between abiotic and biotic factors and between short- and long-term effects |
title_short |
Responses of low Arctic tundra plant species to experimental manipulations: Differences between abiotic and biotic factors and between short- and long-term effects |
title_full |
Responses of low Arctic tundra plant species to experimental manipulations: Differences between abiotic and biotic factors and between short- and long-term effects |
title_fullStr |
Responses of low Arctic tundra plant species to experimental manipulations: Differences between abiotic and biotic factors and between short- and long-term effects |
title_full_unstemmed |
Responses of low Arctic tundra plant species to experimental manipulations: Differences between abiotic and biotic factors and between short- and long-term effects |
title_sort |
responses of low arctic tundra plant species to experimental manipulations: differences between abiotic and biotic factors and between short- and long-term effects |
publisher |
Taylor & Francis Group |
publishDate |
2020 |
url |
https://doi.org/10.1080/15230430.2020.1815360 https://doaj.org/article/82325800a8564c8d87a37ef7d7f69994 |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Antarctic and Alpine Research Arctic Arctic Climate change Tundra |
genre_facet |
Antarctic and Alpine Research Arctic Arctic Climate change Tundra |
op_source |
Arctic, Antarctic, and Alpine Research, Vol 52, Iss 1, Pp 524-540 (2020) |
op_relation |
http://dx.doi.org/10.1080/15230430.2020.1815360 https://doaj.org/toc/1523-0430 https://doaj.org/toc/1938-4246 1523-0430 1938-4246 doi:10.1080/15230430.2020.1815360 https://doaj.org/article/82325800a8564c8d87a37ef7d7f69994 |
op_doi |
https://doi.org/10.1080/15230430.2020.1815360 |
container_title |
Arctic, Antarctic, and Alpine Research |
container_volume |
52 |
container_issue |
1 |
container_start_page |
524 |
op_container_end_page |
540 |
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1766286953949429760 |