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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Online Access: | https://doi.org/10.5194/bg-20-4069-2023 https://doaj.org/article/7b303645e455460fb4af8d87a7840919 |
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ftdoajarticles:oai:doaj.org/article:7b303645e455460fb4af8d87a7840919 2023-11-05T03:39:49+01:00 Herbivore–shrub interactions influence ecosystem respiration and biogenic volatile organic compound composition in the subarctic C. G. Brachmann T. Vowles R. Rinnan M. P. Björkman A. Ekberg R. G. Björk 2023-10-01T00:00:00Z https://doi.org/10.5194/bg-20-4069-2023 https://doaj.org/article/7b303645e455460fb4af8d87a7840919 EN eng Copernicus Publications https://bg.copernicus.org/articles/20/4069/2023/bg-20-4069-2023.pdf https://doaj.org/toc/1726-4170 https://doaj.org/toc/1726-4189 doi:10.5194/bg-20-4069-2023 1726-4170 1726-4189 https://doaj.org/article/7b303645e455460fb4af8d87a7840919 Biogeosciences, Vol 20, Pp 4069-4086 (2023) Ecology QH540-549.5 Life QH501-531 Geology QE1-996.5 article 2023 ftdoajarticles https://doi.org/10.5194/bg-20-4069-2023 2023-10-08T00:35:54Z 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 Directory of Open Access Journals: DOAJ Articles Biogeosciences 20 19 4069 4086 |
institution |
Open Polar |
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Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
Ecology QH540-549.5 Life QH501-531 Geology QE1-996.5 |
spellingShingle |
Ecology QH540-549.5 Life QH501-531 Geology QE1-996.5 C. G. Brachmann T. Vowles R. Rinnan M. P. Björkman A. Ekberg R. G. Björk Herbivore–shrub interactions influence ecosystem respiration and biogenic volatile organic compound composition in the subarctic |
topic_facet |
Ecology QH540-549.5 Life QH501-531 Geology QE1-996.5 |
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 |
C. G. Brachmann T. Vowles R. Rinnan M. P. Björkman A. Ekberg R. G. Björk |
author_facet |
C. G. Brachmann T. Vowles R. Rinnan M. P. Björkman A. Ekberg R. G. Björk |
author_sort |
C. G. Brachmann |
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 Publications |
publishDate |
2023 |
url |
https://doi.org/10.5194/bg-20-4069-2023 https://doaj.org/article/7b303645e455460fb4af8d87a7840919 |
genre |
Arctic Subarctic |
genre_facet |
Arctic Subarctic |
op_source |
Biogeosciences, Vol 20, Pp 4069-4086 (2023) |
op_relation |
https://bg.copernicus.org/articles/20/4069/2023/bg-20-4069-2023.pdf https://doaj.org/toc/1726-4170 https://doaj.org/toc/1726-4189 doi:10.5194/bg-20-4069-2023 1726-4170 1726-4189 https://doaj.org/article/7b303645e455460fb4af8d87a7840919 |
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 |
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1781695745889402880 |