Higher vascular plant abundance associated with decreased ecosystem respiration after 20 years of warming in the forest-tundra ecotone
1. The on-going climate warming is promoting shrub abundance in high latitudes, but the effect of this phenomenon on ecosystem functioning is expected to depend on whether deciduous or evergreen species increase in response to warming. 2. To explore effects of long-term warming on shrubs and further...
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2024
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Online Access: | https://research.ulapland.fi/fi/publications/5b96c9c5-0cd5-4fbe-82b8-995d4175c1c7 https://doi.org/10.1111/1365-2435.14466 https://lacris.ulapland.fi/ws/files/37062261/Myrskyetal2024FunctionalEcology.pdf http://www.scopus.com/inward/record.url?scp=85177473764&partnerID=8YFLogxK http://www.scopus.com/inward/citedby.url?scp=85177473764&partnerID=8YFLogxK |
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ftulaplandcdispu:oai:lacris.ulapland.fi:publications/5b96c9c5-0cd5-4fbe-82b8-995d4175c1c7 2024-05-19T07:33:53+00:00 Higher vascular plant abundance associated with decreased ecosystem respiration after 20 years of warming in the forest-tundra ecotone Myrsky, Eero Mikola, Juha Kaarlejärvi, Elina Olofsson, Johan Sjögersten, Sofie Tupek, Boris Männistö, Minna K Stark, Sari 2024-01-10 application/pdf https://research.ulapland.fi/fi/publications/5b96c9c5-0cd5-4fbe-82b8-995d4175c1c7 https://doi.org/10.1111/1365-2435.14466 https://lacris.ulapland.fi/ws/files/37062261/Myrskyetal2024FunctionalEcology.pdf http://www.scopus.com/inward/record.url?scp=85177473764&partnerID=8YFLogxK http://www.scopus.com/inward/citedby.url?scp=85177473764&partnerID=8YFLogxK eng eng https://research.ulapland.fi/fi/publications/5b96c9c5-0cd5-4fbe-82b8-995d4175c1c7 info:eu-repo/semantics/openAccess Myrsky , E , Mikola , J , Kaarlejärvi , E , Olofsson , J , Sjögersten , S , Tupek , B , Männistö , M K & Stark , S 2024 , ' Higher vascular plant abundance associated with decreased ecosystem respiration after 20 years of warming in the forest-tundra ecotone ' , Functional Ecology , vol. 38 , no. 1 , pp. 219–232 . https://doi.org/10.1111/1365-2435.14466 ilmastonmuutos hiilitase kasvillisuus tundra arctic greening climate change CO2 exchange deciduous dwarf shrubs evergreen dwarf shrubs moth outbreaks /dk/atira/pure/person/fieldofscience2010/1/18/1 name=Ecology evolutionary biology article 2024 ftulaplandcdispu https://doi.org/10.1111/1365-2435.14466 2024-04-28T23:49:42Z 1. The on-going climate warming is promoting shrub abundance in high latitudes, but the effect of this phenomenon on ecosystem functioning is expected to depend on whether deciduous or evergreen species increase in response to warming. 2. To explore effects of long-term warming on shrubs and further on ecosystem functioning, we analysed vegetation and ecosystem CO2 exchange after 20 years of warming in the forest–tundra ecotone in subarctic Sweden. A previous study conducted 9 years earlier had found increased evergreen Empetrum nigrum ssp. hermaphroditum in the forest and increased deciduous Betula nana in the tundra. 3. Following current understanding, we expected continued increase in shrub abundance that would be stronger in tundra than in forest. We expected warming to increase ecosystem respiration (Re) and gross primary productivity (GPP), with a greater increase in Re in tundra due to increased deciduous shrub abundance, leading to a less negative net ecosystem exchange and reduced ecosystem C sink strength. 4. As predicted, vascular plant abundances were higher in the warmed plots with a stronger response in tundra than in forest. However, whereas B. nana had increased in abundance since the last survey, E. hermaphroditum abundance had declined due to several moth and rodent outbreaks during the past decade. In contrast to predictions, Re was significantly lower in the warmed plots irrespective of habitat, and GPP increased marginally only in the forest. The lower Re and a higher GPP under warming in the forest together led to increased net C sink. Re was negatively associated with the total vascular plant abundance. 5. Our results highlight the importance of disturbance regimes for vegetation responses to warming. Climate warming may promote species with both a high capacity to grow under warmer conditions and a resilience towards herbivore outbreaks. Negative correlation between Re and total vascular plant abundance further indicate that the indirect impacts of increased plants on soil microclimate ... Article in Journal/Newspaper Arctic Greening Arctic Betula nana Climate change Empetrum nigrum Subarctic Tundra LaCRIS - University of Lapland Current Research System Functional Ecology 38 1 219 232 |
institution |
Open Polar |
collection |
LaCRIS - University of Lapland Current Research System |
op_collection_id |
ftulaplandcdispu |
language |
English |
topic |
ilmastonmuutos hiilitase kasvillisuus tundra arctic greening climate change CO2 exchange deciduous dwarf shrubs evergreen dwarf shrubs moth outbreaks /dk/atira/pure/person/fieldofscience2010/1/18/1 name=Ecology evolutionary biology |
spellingShingle |
ilmastonmuutos hiilitase kasvillisuus tundra arctic greening climate change CO2 exchange deciduous dwarf shrubs evergreen dwarf shrubs moth outbreaks /dk/atira/pure/person/fieldofscience2010/1/18/1 name=Ecology evolutionary biology Myrsky, Eero Mikola, Juha Kaarlejärvi, Elina Olofsson, Johan Sjögersten, Sofie Tupek, Boris Männistö, Minna K Stark, Sari Higher vascular plant abundance associated with decreased ecosystem respiration after 20 years of warming in the forest-tundra ecotone |
topic_facet |
ilmastonmuutos hiilitase kasvillisuus tundra arctic greening climate change CO2 exchange deciduous dwarf shrubs evergreen dwarf shrubs moth outbreaks /dk/atira/pure/person/fieldofscience2010/1/18/1 name=Ecology evolutionary biology |
description |
1. The on-going climate warming is promoting shrub abundance in high latitudes, but the effect of this phenomenon on ecosystem functioning is expected to depend on whether deciduous or evergreen species increase in response to warming. 2. To explore effects of long-term warming on shrubs and further on ecosystem functioning, we analysed vegetation and ecosystem CO2 exchange after 20 years of warming in the forest–tundra ecotone in subarctic Sweden. A previous study conducted 9 years earlier had found increased evergreen Empetrum nigrum ssp. hermaphroditum in the forest and increased deciduous Betula nana in the tundra. 3. Following current understanding, we expected continued increase in shrub abundance that would be stronger in tundra than in forest. We expected warming to increase ecosystem respiration (Re) and gross primary productivity (GPP), with a greater increase in Re in tundra due to increased deciduous shrub abundance, leading to a less negative net ecosystem exchange and reduced ecosystem C sink strength. 4. As predicted, vascular plant abundances were higher in the warmed plots with a stronger response in tundra than in forest. However, whereas B. nana had increased in abundance since the last survey, E. hermaphroditum abundance had declined due to several moth and rodent outbreaks during the past decade. In contrast to predictions, Re was significantly lower in the warmed plots irrespective of habitat, and GPP increased marginally only in the forest. The lower Re and a higher GPP under warming in the forest together led to increased net C sink. Re was negatively associated with the total vascular plant abundance. 5. Our results highlight the importance of disturbance regimes for vegetation responses to warming. Climate warming may promote species with both a high capacity to grow under warmer conditions and a resilience towards herbivore outbreaks. Negative correlation between Re and total vascular plant abundance further indicate that the indirect impacts of increased plants on soil microclimate ... |
format |
Article in Journal/Newspaper |
author |
Myrsky, Eero Mikola, Juha Kaarlejärvi, Elina Olofsson, Johan Sjögersten, Sofie Tupek, Boris Männistö, Minna K Stark, Sari |
author_facet |
Myrsky, Eero Mikola, Juha Kaarlejärvi, Elina Olofsson, Johan Sjögersten, Sofie Tupek, Boris Männistö, Minna K Stark, Sari |
author_sort |
Myrsky, Eero |
title |
Higher vascular plant abundance associated with decreased ecosystem respiration after 20 years of warming in the forest-tundra ecotone |
title_short |
Higher vascular plant abundance associated with decreased ecosystem respiration after 20 years of warming in the forest-tundra ecotone |
title_full |
Higher vascular plant abundance associated with decreased ecosystem respiration after 20 years of warming in the forest-tundra ecotone |
title_fullStr |
Higher vascular plant abundance associated with decreased ecosystem respiration after 20 years of warming in the forest-tundra ecotone |
title_full_unstemmed |
Higher vascular plant abundance associated with decreased ecosystem respiration after 20 years of warming in the forest-tundra ecotone |
title_sort |
higher vascular plant abundance associated with decreased ecosystem respiration after 20 years of warming in the forest-tundra ecotone |
publishDate |
2024 |
url |
https://research.ulapland.fi/fi/publications/5b96c9c5-0cd5-4fbe-82b8-995d4175c1c7 https://doi.org/10.1111/1365-2435.14466 https://lacris.ulapland.fi/ws/files/37062261/Myrskyetal2024FunctionalEcology.pdf http://www.scopus.com/inward/record.url?scp=85177473764&partnerID=8YFLogxK http://www.scopus.com/inward/citedby.url?scp=85177473764&partnerID=8YFLogxK |
genre |
Arctic Greening Arctic Betula nana Climate change Empetrum nigrum Subarctic Tundra |
genre_facet |
Arctic Greening Arctic Betula nana Climate change Empetrum nigrum Subarctic Tundra |
op_source |
Myrsky , E , Mikola , J , Kaarlejärvi , E , Olofsson , J , Sjögersten , S , Tupek , B , Männistö , M K & Stark , S 2024 , ' Higher vascular plant abundance associated with decreased ecosystem respiration after 20 years of warming in the forest-tundra ecotone ' , Functional Ecology , vol. 38 , no. 1 , pp. 219–232 . https://doi.org/10.1111/1365-2435.14466 |
op_relation |
https://research.ulapland.fi/fi/publications/5b96c9c5-0cd5-4fbe-82b8-995d4175c1c7 |
op_rights |
info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.1111/1365-2435.14466 |
container_title |
Functional Ecology |
container_volume |
38 |
container_issue |
1 |
container_start_page |
219 |
op_container_end_page |
232 |
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1799471924400619520 |