BVOC Emissions From a Subarctic Ecosystem, as Controlled by Insect Herbivore Pressure and Temperature
The biogenic volatile organic compounds, BVOCs have a central role in ecosystem–atmosphere interactions. High-latitude ecosystems are facing increasing temperatures and insect herbivore pressure, which may affect their BVOC emission rates, but evidence and predictions of changes remain scattered. We...
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ftluke:oai:jukuri.luke.fi:10024/551474 2023-10-09T21:56:09+02:00 BVOC Emissions From a Subarctic Ecosystem, as Controlled by Insect Herbivore Pressure and Temperature Ghimire, Rajendra P. Silfver, Tarja Myller, Kristiina Oksanen, Elina Holopainen, Jarmo K. Mikola, Juha orcid:0000-0002-4336-2648 4100310610 Luonnonvarakeskus 872-891 true https://jukuri.luke.fi/handle/10024/551474 en eng Springer Science and Business Media LLC Ecosystems 10.1007/s10021-021-00690-0 1432-9840 1435-0629 25 https://jukuri.luke.fi/handle/10024/551474 URN:NBN:fi-fe2023020625884 CC BY 4.0 BVOC emissions climate warming ecosystem–atmosphere interactions insect herbivory mountain birch Subarctic publication fi=A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä|sv=A1 Originalartikel i en vetenskaplig tidskrift|en=A1 Journal article (refereed), original research| fi=Publisher's version|sv=Publisher's version|en=Publisher's version| ftluke 2023-09-12T20:28:12Z The biogenic volatile organic compounds, BVOCs have a central role in ecosystem–atmosphere interactions. High-latitude ecosystems are facing increasing temperatures and insect herbivore pressure, which may affect their BVOC emission rates, but evidence and predictions of changes remain scattered. We studied the long-term effects of + 3 °C warming and reduced insect herbivory (achieved through insecticide sprayings) on mid- and late summer BVOC emissions from field layer vegetation, supplemented with birch saplings, and the underlying soil in Subarctic mountain birch forest in Finland in 2017–2018. Reduced insect herbivory decreased leaf damage by 58–67% and total ecosystem BVOC emissions by 44–72%. Of the BVOC groups, total sesquiterpenes had 70–80% lower emissions with reduced herbivory, and in 2017 the decrease was greater in warmed plots (89% decrease) than in ambient plots (34% decrease). While non-standardized total BVOC, monoterpene, sesquiterpene and GLV emissions showed instant positive responses to increasing chamber air temperature in midsummer samplings, the long-term warming treatment effects on standardized emissions mainly appeared as changes in the compound structure of BVOC blends and varied with compounds and sampling times. Our results suggest that the effects of climate warming on the total quantity of BVOC emissions will in Subarctic ecosystems be, over and above the instant temperature effects, mediated through changes in insect herbivore pressure rather than plant growth. If insect herbivore numbers will increase as predicted under climate warming, our results forecast herbivory-induced increases in the quantity of Subarctic BVOC emissions. 2021 Article in Journal/Newspaper Subarctic Natural Resources Institute Finland: Jukuri |
institution |
Open Polar |
collection |
Natural Resources Institute Finland: Jukuri |
op_collection_id |
ftluke |
language |
English |
topic |
BVOC emissions climate warming ecosystem–atmosphere interactions insect herbivory mountain birch Subarctic |
spellingShingle |
BVOC emissions climate warming ecosystem–atmosphere interactions insect herbivory mountain birch Subarctic Ghimire, Rajendra P. Silfver, Tarja Myller, Kristiina Oksanen, Elina Holopainen, Jarmo K. Mikola, Juha BVOC Emissions From a Subarctic Ecosystem, as Controlled by Insect Herbivore Pressure and Temperature |
topic_facet |
BVOC emissions climate warming ecosystem–atmosphere interactions insect herbivory mountain birch Subarctic |
description |
The biogenic volatile organic compounds, BVOCs have a central role in ecosystem–atmosphere interactions. High-latitude ecosystems are facing increasing temperatures and insect herbivore pressure, which may affect their BVOC emission rates, but evidence and predictions of changes remain scattered. We studied the long-term effects of + 3 °C warming and reduced insect herbivory (achieved through insecticide sprayings) on mid- and late summer BVOC emissions from field layer vegetation, supplemented with birch saplings, and the underlying soil in Subarctic mountain birch forest in Finland in 2017–2018. Reduced insect herbivory decreased leaf damage by 58–67% and total ecosystem BVOC emissions by 44–72%. Of the BVOC groups, total sesquiterpenes had 70–80% lower emissions with reduced herbivory, and in 2017 the decrease was greater in warmed plots (89% decrease) than in ambient plots (34% decrease). While non-standardized total BVOC, monoterpene, sesquiterpene and GLV emissions showed instant positive responses to increasing chamber air temperature in midsummer samplings, the long-term warming treatment effects on standardized emissions mainly appeared as changes in the compound structure of BVOC blends and varied with compounds and sampling times. Our results suggest that the effects of climate warming on the total quantity of BVOC emissions will in Subarctic ecosystems be, over and above the instant temperature effects, mediated through changes in insect herbivore pressure rather than plant growth. If insect herbivore numbers will increase as predicted under climate warming, our results forecast herbivory-induced increases in the quantity of Subarctic BVOC emissions. 2021 |
author2 |
orcid:0000-0002-4336-2648 4100310610 Luonnonvarakeskus |
format |
Article in Journal/Newspaper |
author |
Ghimire, Rajendra P. Silfver, Tarja Myller, Kristiina Oksanen, Elina Holopainen, Jarmo K. Mikola, Juha |
author_facet |
Ghimire, Rajendra P. Silfver, Tarja Myller, Kristiina Oksanen, Elina Holopainen, Jarmo K. Mikola, Juha |
author_sort |
Ghimire, Rajendra P. |
title |
BVOC Emissions From a Subarctic Ecosystem, as Controlled by Insect Herbivore Pressure and Temperature |
title_short |
BVOC Emissions From a Subarctic Ecosystem, as Controlled by Insect Herbivore Pressure and Temperature |
title_full |
BVOC Emissions From a Subarctic Ecosystem, as Controlled by Insect Herbivore Pressure and Temperature |
title_fullStr |
BVOC Emissions From a Subarctic Ecosystem, as Controlled by Insect Herbivore Pressure and Temperature |
title_full_unstemmed |
BVOC Emissions From a Subarctic Ecosystem, as Controlled by Insect Herbivore Pressure and Temperature |
title_sort |
bvoc emissions from a subarctic ecosystem, as controlled by insect herbivore pressure and temperature |
publisher |
Springer Science and Business Media LLC |
url |
https://jukuri.luke.fi/handle/10024/551474 |
genre |
Subarctic |
genre_facet |
Subarctic |
op_relation |
Ecosystems 10.1007/s10021-021-00690-0 1432-9840 1435-0629 25 https://jukuri.luke.fi/handle/10024/551474 URN:NBN:fi-fe2023020625884 |
op_rights |
CC BY 4.0 |
_version_ |
1779320653284900864 |