Herbivore-shrub interactions influence ecosystem respiration and biogenic volatile organic compound composition in the subarctic
Arctic ecosystems are warming nearly 4 times faster than the global average, which is resulting in plant community shifts and subsequent changes in biogeochemical processes such as gaseous fluxes. Additionally, herbivores shape plant communities and thereby may alter the magnitude and composition of...
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Format: | Article in Journal/Newspaper |
Language: | English |
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Copernicus GmbH
2023
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Online Access: | https://lup.lub.lu.se/record/1d49dfe5-4471-4281-809f-005019b9abea https://doi.org/10.5194/bg-20-4069-2023 |
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ftulundlup:oai:lup.lub.lu.se:1d49dfe5-4471-4281-809f-005019b9abea 2024-02-04T09:58:19+01:00 Herbivore-shrub interactions influence ecosystem respiration and biogenic volatile organic compound composition in the subarctic Brachmann, Cole G. Vowles, Tage Rinnan, Riikka Björkman, Mats P. Ekberg, Anna Björk, Robert G. 2023-10-06 https://lup.lub.lu.se/record/1d49dfe5-4471-4281-809f-005019b9abea https://doi.org/10.5194/bg-20-4069-2023 eng eng Copernicus GmbH https://lup.lub.lu.se/record/1d49dfe5-4471-4281-809f-005019b9abea http://dx.doi.org/10.5194/bg-20-4069-2023 scopus:85177754224 Biogeosciences; 20(19), pp 4069-4086 (2023) ISSN: 1726-4170 Ecology Physical Geography contributiontojournal/article info:eu-repo/semantics/article text 2023 ftulundlup https://doi.org/10.5194/bg-20-4069-2023 2024-01-10T23:29:48Z Arctic ecosystems are warming nearly 4 times faster than the global average, which is resulting in plant community shifts and subsequent changes in biogeochemical processes such as gaseous fluxes. Additionally, herbivores shape plant communities and thereby may alter the magnitude and composition of ecosystem respiration and biogenic volatile organic compound (BVOC) emissions. Here we determine the effect of large mammalian herbivores on ecosystem respiration and BVOC emissions in two southern and two northern sites in Swedish Scandes, encompassing mountain birch (LOMB) and shrub heath (LORI) communities in the south and low-herb meadow (RIGA) and shrub heath (RIRI) communities in the north. Herbivory significantly altered BVOC composition between sites and decreased ecosystem respiration at RIGA. The difference in graminoid cover was found to have a large effect on ecosystem respiration between sites as RIGA, with the highest cover, had 35 % higher emissions than the next highest-emitting site (LOMB). Additionally, LOMB had the highest emissions of terpenes, with the northern sites having significantly lower emissions. Differences between sites were primarily due to differences in exclosure effects and soil temperature and the prevalence of different shrub growth forms. Our results suggest that herbivory has a significant effect on trace gas fluxes in a productive meadow community and that differences between communities may be driven by differences in shrub composition. Article in Journal/Newspaper Arctic Subarctic Lund University Publications (LUP) Arctic Biogeosciences 20 19 4069 4086 |
institution |
Open Polar |
collection |
Lund University Publications (LUP) |
op_collection_id |
ftulundlup |
language |
English |
topic |
Ecology Physical Geography |
spellingShingle |
Ecology Physical Geography Brachmann, Cole G. Vowles, Tage Rinnan, Riikka Björkman, Mats P. Ekberg, Anna Björk, Robert G. Herbivore-shrub interactions influence ecosystem respiration and biogenic volatile organic compound composition in the subarctic |
topic_facet |
Ecology Physical Geography |
description |
Arctic ecosystems are warming nearly 4 times faster than the global average, which is resulting in plant community shifts and subsequent changes in biogeochemical processes such as gaseous fluxes. Additionally, herbivores shape plant communities and thereby may alter the magnitude and composition of ecosystem respiration and biogenic volatile organic compound (BVOC) emissions. Here we determine the effect of large mammalian herbivores on ecosystem respiration and BVOC emissions in two southern and two northern sites in Swedish Scandes, encompassing mountain birch (LOMB) and shrub heath (LORI) communities in the south and low-herb meadow (RIGA) and shrub heath (RIRI) communities in the north. Herbivory significantly altered BVOC composition between sites and decreased ecosystem respiration at RIGA. The difference in graminoid cover was found to have a large effect on ecosystem respiration between sites as RIGA, with the highest cover, had 35 % higher emissions than the next highest-emitting site (LOMB). Additionally, LOMB had the highest emissions of terpenes, with the northern sites having significantly lower emissions. Differences between sites were primarily due to differences in exclosure effects and soil temperature and the prevalence of different shrub growth forms. Our results suggest that herbivory has a significant effect on trace gas fluxes in a productive meadow community and that differences between communities may be driven by differences in shrub composition. |
format |
Article in Journal/Newspaper |
author |
Brachmann, Cole G. Vowles, Tage Rinnan, Riikka Björkman, Mats P. Ekberg, Anna Björk, Robert G. |
author_facet |
Brachmann, Cole G. Vowles, Tage Rinnan, Riikka Björkman, Mats P. Ekberg, Anna Björk, Robert G. |
author_sort |
Brachmann, Cole G. |
title |
Herbivore-shrub interactions influence ecosystem respiration and biogenic volatile organic compound composition in the subarctic |
title_short |
Herbivore-shrub interactions influence ecosystem respiration and biogenic volatile organic compound composition in the subarctic |
title_full |
Herbivore-shrub interactions influence ecosystem respiration and biogenic volatile organic compound composition in the subarctic |
title_fullStr |
Herbivore-shrub interactions influence ecosystem respiration and biogenic volatile organic compound composition in the subarctic |
title_full_unstemmed |
Herbivore-shrub interactions influence ecosystem respiration and biogenic volatile organic compound composition in the subarctic |
title_sort |
herbivore-shrub interactions influence ecosystem respiration and biogenic volatile organic compound composition in the subarctic |
publisher |
Copernicus GmbH |
publishDate |
2023 |
url |
https://lup.lub.lu.se/record/1d49dfe5-4471-4281-809f-005019b9abea https://doi.org/10.5194/bg-20-4069-2023 |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic Subarctic |
genre_facet |
Arctic Subarctic |
op_source |
Biogeosciences; 20(19), pp 4069-4086 (2023) ISSN: 1726-4170 |
op_relation |
https://lup.lub.lu.se/record/1d49dfe5-4471-4281-809f-005019b9abea http://dx.doi.org/10.5194/bg-20-4069-2023 scopus:85177754224 |
op_doi |
https://doi.org/10.5194/bg-20-4069-2023 |
container_title |
Biogeosciences |
container_volume |
20 |
container_issue |
19 |
container_start_page |
4069 |
op_container_end_page |
4086 |
_version_ |
1789962749623664640 |