Disappearing green: Shrubs decline and bryophytes increase with nine years of increased snow accumulation in the High Arctic
Question - How does increased snow depth affect plant community composition of High Arctic tundra, and can the Normalized Differential Vegetation Index (NDVI) detect induced changes? Location - Adventdalen, Spitsbergen, Svalbard (78°10′ N, 16°04′ E). Methods - We manipulated snow depth on the tundra...
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Online Access: | https://hdl.handle.net/10037/17703 https://doi.org/10.1111/jvs.12793 |
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ftunivtroemsoe:oai:munin.uit.no:10037/17703 2023-05-15T13:05:44+02:00 Disappearing green: Shrubs decline and bryophytes increase with nine years of increased snow accumulation in the High Arctic Cooper, Elisabeth J. Little, Chelsea J. Pilsbacher, Anna Katharina Mörsdorf, Martin Alfons 2019-07-25 https://hdl.handle.net/10037/17703 https://doi.org/10.1111/jvs.12793 eng eng Wiley Journal of Vegetation Science Norges forskningsråd: 230970 Framsenteret: SnoEcoFen info:eu-repo/grantAgreement/RCN/FRIMEDBIO/230970/Norway/The effect of snow depth and snow melt timing on arctic terrestrial ecosystems// Cooper E.J., Little CJ, Pilsbacher AK, Mörsdorf MA. Disappearing green: Shrubs decline and bryophytes increase with nine years of increased snow accumulation in the High Arctic. Journal of Vegetation Science. 2019;30(5):857-867 FRIDAID 1747471 doi:10.1111/jvs.12793 1100-9233 1654-1103 https://hdl.handle.net/10037/17703 openAccess Copyright 2019 The Author(s) VDP::Mathematics and natural science: 400 VDP::Matematikk og Naturvitenskap: 400 Journal article Tidsskriftartikkel Peer reviewed publishedVersion 2019 ftunivtroemsoe https://doi.org/10.1111/jvs.12793 2021-06-25T17:57:06Z Question - How does increased snow depth affect plant community composition of High Arctic tundra, and can the Normalized Differential Vegetation Index (NDVI) detect induced changes? Location - Adventdalen, Spitsbergen, Svalbard (78°10′ N, 16°04′ E). Methods - We manipulated snow depth on the tundra using fences, resulting in Deep, Medium , and Ambient snow regimes. Increased snow led to warmer winter soil temperatures, a delayed onset of growing season and wetter conditions during the early growing season. Plant community composition of living and dead plant material was recorded after nine years. NDVI was measured at the plot level using a handheld sensor. Results - Community composition and the abundance of typically dominant shrub species were substantially different in the Deep compared to the Ambient regime. Deep had lower cover of live shrubs ( Cassiope tetragona, Dryas octopetala and Salix polaris ) and Luzula confusa , and higher cover of dead shrubs ( Cassiope and Dryas ) compared to the other snow regimes. Bryophyte cover was highest in Medium . NDVI was positively correlated to the cover of living vascular plants and negatively correlated to cover of dead vascular plants. Accordingly, Deep snow regime had reduced NDVI, reflecting the contribution of dead Cassiope and Dryas . Conclusion - Snow regime strongly influenced community composition in High Arctic plant communities. Enhanced snow regimes had more dead shrubs, reduced Luzula and increased bryophyte cover than ambient conditions. These differences were detectable by handheld NDVI sensors. Article in Journal/Newspaper Adventdalen Arctic Arctic Cassiope tetragona Dryas octopetala Luzula confusa Salix polaris Svalbard Tundra Spitsbergen University of Tromsø: Munin Open Research Archive Adventdalen ENVELOPE(16.264,16.264,78.181,78.181) Arctic Svalbard Journal of Vegetation Science 30 5 857 867 |
institution |
Open Polar |
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University of Tromsø: Munin Open Research Archive |
op_collection_id |
ftunivtroemsoe |
language |
English |
topic |
VDP::Mathematics and natural science: 400 VDP::Matematikk og Naturvitenskap: 400 |
spellingShingle |
VDP::Mathematics and natural science: 400 VDP::Matematikk og Naturvitenskap: 400 Cooper, Elisabeth J. Little, Chelsea J. Pilsbacher, Anna Katharina Mörsdorf, Martin Alfons Disappearing green: Shrubs decline and bryophytes increase with nine years of increased snow accumulation in the High Arctic |
topic_facet |
VDP::Mathematics and natural science: 400 VDP::Matematikk og Naturvitenskap: 400 |
description |
Question - How does increased snow depth affect plant community composition of High Arctic tundra, and can the Normalized Differential Vegetation Index (NDVI) detect induced changes? Location - Adventdalen, Spitsbergen, Svalbard (78°10′ N, 16°04′ E). Methods - We manipulated snow depth on the tundra using fences, resulting in Deep, Medium , and Ambient snow regimes. Increased snow led to warmer winter soil temperatures, a delayed onset of growing season and wetter conditions during the early growing season. Plant community composition of living and dead plant material was recorded after nine years. NDVI was measured at the plot level using a handheld sensor. Results - Community composition and the abundance of typically dominant shrub species were substantially different in the Deep compared to the Ambient regime. Deep had lower cover of live shrubs ( Cassiope tetragona, Dryas octopetala and Salix polaris ) and Luzula confusa , and higher cover of dead shrubs ( Cassiope and Dryas ) compared to the other snow regimes. Bryophyte cover was highest in Medium . NDVI was positively correlated to the cover of living vascular plants and negatively correlated to cover of dead vascular plants. Accordingly, Deep snow regime had reduced NDVI, reflecting the contribution of dead Cassiope and Dryas . Conclusion - Snow regime strongly influenced community composition in High Arctic plant communities. Enhanced snow regimes had more dead shrubs, reduced Luzula and increased bryophyte cover than ambient conditions. These differences were detectable by handheld NDVI sensors. |
format |
Article in Journal/Newspaper |
author |
Cooper, Elisabeth J. Little, Chelsea J. Pilsbacher, Anna Katharina Mörsdorf, Martin Alfons |
author_facet |
Cooper, Elisabeth J. Little, Chelsea J. Pilsbacher, Anna Katharina Mörsdorf, Martin Alfons |
author_sort |
Cooper, Elisabeth J. |
title |
Disappearing green: Shrubs decline and bryophytes increase with nine years of increased snow accumulation in the High Arctic |
title_short |
Disappearing green: Shrubs decline and bryophytes increase with nine years of increased snow accumulation in the High Arctic |
title_full |
Disappearing green: Shrubs decline and bryophytes increase with nine years of increased snow accumulation in the High Arctic |
title_fullStr |
Disappearing green: Shrubs decline and bryophytes increase with nine years of increased snow accumulation in the High Arctic |
title_full_unstemmed |
Disappearing green: Shrubs decline and bryophytes increase with nine years of increased snow accumulation in the High Arctic |
title_sort |
disappearing green: shrubs decline and bryophytes increase with nine years of increased snow accumulation in the high arctic |
publisher |
Wiley |
publishDate |
2019 |
url |
https://hdl.handle.net/10037/17703 https://doi.org/10.1111/jvs.12793 |
long_lat |
ENVELOPE(16.264,16.264,78.181,78.181) |
geographic |
Adventdalen Arctic Svalbard |
geographic_facet |
Adventdalen Arctic Svalbard |
genre |
Adventdalen Arctic Arctic Cassiope tetragona Dryas octopetala Luzula confusa Salix polaris Svalbard Tundra Spitsbergen |
genre_facet |
Adventdalen Arctic Arctic Cassiope tetragona Dryas octopetala Luzula confusa Salix polaris Svalbard Tundra Spitsbergen |
op_relation |
Journal of Vegetation Science Norges forskningsråd: 230970 Framsenteret: SnoEcoFen info:eu-repo/grantAgreement/RCN/FRIMEDBIO/230970/Norway/The effect of snow depth and snow melt timing on arctic terrestrial ecosystems// Cooper E.J., Little CJ, Pilsbacher AK, Mörsdorf MA. Disappearing green: Shrubs decline and bryophytes increase with nine years of increased snow accumulation in the High Arctic. Journal of Vegetation Science. 2019;30(5):857-867 FRIDAID 1747471 doi:10.1111/jvs.12793 1100-9233 1654-1103 https://hdl.handle.net/10037/17703 |
op_rights |
openAccess Copyright 2019 The Author(s) |
op_doi |
https://doi.org/10.1111/jvs.12793 |
container_title |
Journal of Vegetation Science |
container_volume |
30 |
container_issue |
5 |
container_start_page |
857 |
op_container_end_page |
867 |
_version_ |
1766392278651240448 |