High tolerance of a high-arctic willow and graminoid to simulated ice encasement
Climate change-induced snow thaw and subsequent accumulation of ice on the ground is a potential, major threat to snow-dominated ecosystems. While impacts of ground-ice on arctic wildlife are well explored, the impacts on tundra vegetation is far from understood. We therefore tested the vulnerabilit...
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ftninstnf:oai:brage.nina.no:11250/2580534 2023-05-15T14:34:29+02:00 High tolerance of a high-arctic willow and graminoid to simulated ice encasement Bjerke, Jarle W. Elverland, Ellen Jaakola, Laura Lund, Leidulf Zagajewski, Bogdan Bochenek, Zbigniew Kłos, Andrzej Tømmervik, Hans Arctic 2018 application/pdf http://hdl.handle.net/11250/2580534 eng eng Norges forskningsråd: 225006 Framsenteret: 362222 Andre: Polish-Norwegian Programme of the EEA Norway Grants: 198571 urn:issn:1239-6095 http://hdl.handle.net/11250/2580534 cristin:1644963 © BorealEnvResBoard 329-338 Boreal environment research VDP::Zoologiske og botaniske fag: 480 VDP::Zoology and botany: 480 Journal article Peer reviewed 2018 ftninstnf 2021-12-23T07:16:56Z Climate change-induced snow thaw and subsequent accumulation of ice on the ground is a potential, major threat to snow-dominated ecosystems. While impacts of ground-ice on arctic wildlife are well explored, the impacts on tundra vegetation is far from understood. We therefore tested the vulnerability of two high-arctic plants, the prostrate shrub Salix polaris and the graminoid Luzula confusa, to ice encasement for 60 days under full environmental control. Both species were tolerant, showing only minor negative responses to the treatment. Subsequent exposure to simulated late spring frost increased the amount of damaged tissue, particularly in S. polaris, compared to the pre-frost situation. Wilting shoot tips of S. polaris increased nearly tenfold, while the proportion of wilted leaves of L. confusa increased by 15%. During recovery, damaged plants of S. polaris responded by extensive compensatory growth of new leaves that were much smaller than leaves of non-damaged shoots. The results suggest that S. polaris and L. confusa are rather tolerant to arctic winter-spring climate change, and this may be part of the reason for their wide distribution range and abundance in the Arctic. High tolerance of a high-arctic willow and graminoid to simulated ice encasement publishedVersion Article in Journal/Newspaper Arctic Boreal Environment Research Climate change Luzula confusa Salix polaris Tundra Norwegian Institute for Nature Research: Brage NINA Arctic |
institution |
Open Polar |
collection |
Norwegian Institute for Nature Research: Brage NINA |
op_collection_id |
ftninstnf |
language |
English |
topic |
VDP::Zoologiske og botaniske fag: 480 VDP::Zoology and botany: 480 |
spellingShingle |
VDP::Zoologiske og botaniske fag: 480 VDP::Zoology and botany: 480 Bjerke, Jarle W. Elverland, Ellen Jaakola, Laura Lund, Leidulf Zagajewski, Bogdan Bochenek, Zbigniew Kłos, Andrzej Tømmervik, Hans High tolerance of a high-arctic willow and graminoid to simulated ice encasement |
topic_facet |
VDP::Zoologiske og botaniske fag: 480 VDP::Zoology and botany: 480 |
description |
Climate change-induced snow thaw and subsequent accumulation of ice on the ground is a potential, major threat to snow-dominated ecosystems. While impacts of ground-ice on arctic wildlife are well explored, the impacts on tundra vegetation is far from understood. We therefore tested the vulnerability of two high-arctic plants, the prostrate shrub Salix polaris and the graminoid Luzula confusa, to ice encasement for 60 days under full environmental control. Both species were tolerant, showing only minor negative responses to the treatment. Subsequent exposure to simulated late spring frost increased the amount of damaged tissue, particularly in S. polaris, compared to the pre-frost situation. Wilting shoot tips of S. polaris increased nearly tenfold, while the proportion of wilted leaves of L. confusa increased by 15%. During recovery, damaged plants of S. polaris responded by extensive compensatory growth of new leaves that were much smaller than leaves of non-damaged shoots. The results suggest that S. polaris and L. confusa are rather tolerant to arctic winter-spring climate change, and this may be part of the reason for their wide distribution range and abundance in the Arctic. High tolerance of a high-arctic willow and graminoid to simulated ice encasement publishedVersion |
format |
Article in Journal/Newspaper |
author |
Bjerke, Jarle W. Elverland, Ellen Jaakola, Laura Lund, Leidulf Zagajewski, Bogdan Bochenek, Zbigniew Kłos, Andrzej Tømmervik, Hans |
author_facet |
Bjerke, Jarle W. Elverland, Ellen Jaakola, Laura Lund, Leidulf Zagajewski, Bogdan Bochenek, Zbigniew Kłos, Andrzej Tømmervik, Hans |
author_sort |
Bjerke, Jarle W. |
title |
High tolerance of a high-arctic willow and graminoid to simulated ice encasement |
title_short |
High tolerance of a high-arctic willow and graminoid to simulated ice encasement |
title_full |
High tolerance of a high-arctic willow and graminoid to simulated ice encasement |
title_fullStr |
High tolerance of a high-arctic willow and graminoid to simulated ice encasement |
title_full_unstemmed |
High tolerance of a high-arctic willow and graminoid to simulated ice encasement |
title_sort |
high tolerance of a high-arctic willow and graminoid to simulated ice encasement |
publishDate |
2018 |
url |
http://hdl.handle.net/11250/2580534 |
op_coverage |
Arctic |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic Boreal Environment Research Climate change Luzula confusa Salix polaris Tundra |
genre_facet |
Arctic Boreal Environment Research Climate change Luzula confusa Salix polaris Tundra |
op_source |
329-338 Boreal environment research |
op_relation |
Norges forskningsråd: 225006 Framsenteret: 362222 Andre: Polish-Norwegian Programme of the EEA Norway Grants: 198571 urn:issn:1239-6095 http://hdl.handle.net/11250/2580534 cristin:1644963 |
op_rights |
© BorealEnvResBoard |
_version_ |
1766307498759815168 |