High tolerance of a high-arctic willow and graminoid to simulated ice encasement
Source at http://www.borenv.net/BER/ber231-6.htm . 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 fr...
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ftunivtroemsoe:oai:munin.uit.no:10037/14367 2023-05-15T14:27:10+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 2018-12-17 https://hdl.handle.net/10037/14367 eng eng Boreal Environment Research Publishing Board Boreal environment research info:eu-repo/grantAgreement/RCN/KLIMAFORSK/225006/Norway/Winter disturbance and nitrogen deposition: Unraveling the mechanisms behind ecosystem response to combined effects of climate and pollution// Bjerke, J.W., Elverland, E., Jaakola, L., Lund, l., Zagajewski, B., Bochenek, Z., . Tømmervik, H. (2018). High tolerance of a high-arctic willow and graminoid to simulated ice encasement. Boreal environment research , 23. FRIDAID 1644963 1239-6095 1797-2469 https://hdl.handle.net/10037/14367 openAccess VDP::Matematikk og naturvitenskap: 400::Zoologiske og botaniske fag: 480 VDP::Mathematics and natural scienses: 400::Zoology and botany: 480 Journal article Tidsskriftartikkel Peer reviewed 2018 ftunivtroemsoe 2021-06-25T17:56:16Z Source at http://www.borenv.net/BER/ber231-6.htm . 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. Article in Journal/Newspaper Arctic Arctic Boreal Environment Research Climate change Luzula confusa Salix polaris Tundra University of Tromsø: Munin Open Research Archive Arctic |
institution |
Open Polar |
collection |
University of Tromsø: Munin Open Research Archive |
op_collection_id |
ftunivtroemsoe |
language |
English |
topic |
VDP::Matematikk og naturvitenskap: 400::Zoologiske og botaniske fag: 480 VDP::Mathematics and natural scienses: 400::Zoology and botany: 480 |
spellingShingle |
VDP::Matematikk og naturvitenskap: 400::Zoologiske og botaniske fag: 480 VDP::Mathematics and natural scienses: 400::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::Matematikk og naturvitenskap: 400::Zoologiske og botaniske fag: 480 VDP::Mathematics and natural scienses: 400::Zoology and botany: 480 |
description |
Source at http://www.borenv.net/BER/ber231-6.htm . 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. |
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 |
publisher |
Boreal Environment Research Publishing Board |
publishDate |
2018 |
url |
https://hdl.handle.net/10037/14367 |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic Arctic Boreal Environment Research Climate change Luzula confusa Salix polaris Tundra |
genre_facet |
Arctic Arctic Boreal Environment Research Climate change Luzula confusa Salix polaris Tundra |
op_relation |
Boreal environment research info:eu-repo/grantAgreement/RCN/KLIMAFORSK/225006/Norway/Winter disturbance and nitrogen deposition: Unraveling the mechanisms behind ecosystem response to combined effects of climate and pollution// Bjerke, J.W., Elverland, E., Jaakola, L., Lund, l., Zagajewski, B., Bochenek, Z., . Tømmervik, H. (2018). High tolerance of a high-arctic willow and graminoid to simulated ice encasement. Boreal environment research , 23. FRIDAID 1644963 1239-6095 1797-2469 https://hdl.handle.net/10037/14367 |
op_rights |
openAccess |
_version_ |
1766300771828105216 |