Acclimation of subarctic vegetation to warming and increased cloudiness

Subarctic ecosystems are exposed to elevated temperatures and increased cloudiness in a changing climate with potentially important effects on vegetation structure, composition, and ecosystem functioning. We investigated the individual and combined effects of warming and increased cloudiness on vege...

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Published in:Plant-Environment Interactions
Main Authors: Ndah, Flobert A., Maljanen, Marja, Kasurinen, Anne, Rinnan, Riikka, Michelsen, Anders, Kotilainen, Titta, Kivimäenpää, Minna
Format: Article in Journal/Newspaper
Language:English
Published: 2024
Subjects:
Online Access:https://curis.ku.dk/portal/da/publications/acclimation-of-subarctic-vegetation-to-warming-and-increased-cloudiness(ba04e5d3-d43a-4700-8b37-0d1a4e477689).html
https://doi.org/10.1002/pei3.10130
https://curis.ku.dk/ws/files/381233550/Plant_Enviro_Interactions_2023_Ndah_Acclimation_of_subarctic_vegetation_to_warming_and_increased_cloudiness_2_17.pdf
id ftcopenhagenunip:oai:pure.atira.dk:publications/ba04e5d3-d43a-4700-8b37-0d1a4e477689
record_format openpolar
spelling ftcopenhagenunip:oai:pure.atira.dk:publications/ba04e5d3-d43a-4700-8b37-0d1a4e477689 2024-05-19T07:36:42+00:00 Acclimation of subarctic vegetation to warming and increased cloudiness Ndah, Flobert A. Maljanen, Marja Kasurinen, Anne Rinnan, Riikka Michelsen, Anders Kotilainen, Titta Kivimäenpää, Minna 2024 application/pdf https://curis.ku.dk/portal/da/publications/acclimation-of-subarctic-vegetation-to-warming-and-increased-cloudiness(ba04e5d3-d43a-4700-8b37-0d1a4e477689).html https://doi.org/10.1002/pei3.10130 https://curis.ku.dk/ws/files/381233550/Plant_Enviro_Interactions_2023_Ndah_Acclimation_of_subarctic_vegetation_to_warming_and_increased_cloudiness_2_17.pdf eng eng info:eu-repo/semantics/openAccess Ndah , F A , Maljanen , M , Kasurinen , A , Rinnan , R , Michelsen , A , Kotilainen , T & Kivimäenpää , M 2024 , ' Acclimation of subarctic vegetation to warming and increased cloudiness ' , Plant-Environment Interactions , vol. 5 , no. 1 , e10130 . https://doi.org/10.1002/pei3.10130 Arctic climate change cloud cover temperature tundra vegetation change article 2024 ftcopenhagenunip https://doi.org/10.1002/pei3.10130 2024-05-02T00:33:24Z Subarctic ecosystems are exposed to elevated temperatures and increased cloudiness in a changing climate with potentially important effects on vegetation structure, composition, and ecosystem functioning. We investigated the individual and combined effects of warming and increased cloudiness on vegetation greenness and cover in mesocosms from two tundra and one palsa mire ecosystems kept under strict environmental control in climate chambers. We also investigated leaf anatomical and biochemical traits of four dominant vascular plant species (Empetrum hermaphroditum, Vaccinium myrtillus, Vaccinium vitis-idaea, and Rubus chamaemorus). Vegetation greenness increased in response to warming in all sites and in response to increased cloudiness in the tundra sites but without associated increases in vegetation cover or biomass, except that E. hermaphroditum biomass increased under warming. The combined warming and increased cloudiness treatment had an additive effect on vegetation greenness in all sites. It also increased the cover of graminoids and forbs in one of the tundra sites. Warming increased leaf dry mass per area of V. myrtillus and R. chamaemorus, and glandular trichome density of V. myrtillus and decreased spongy intercellular space of E. hermaphroditum and V. vitis-idaea. Increased cloudiness decreased leaf dry mass per area of V. myrtillus, palisade thickness of E. hermaphroditum, and stomata density of E. hermaphroditum and V. vitis-idaea, and increased leaf area and epidermis thickness of V. myrtillus, leaf shape index and nitrogen of E. hermaphroditum, and palisade intercellular space of V. vitis-idaea. The combined treatment caused thinner leaves and decreased leaf carbon for V. myrtillus, and increased leaf chlorophyll of E. hermaphroditum. We show that under future warmer increased cloudiness conditions in the Subarctic (as simulated in our experiment), vegetation composition and distribution will change, mostly dominated by graminoids and forbs. These changes will depend on the responses of leaf ... Article in Journal/Newspaper Arctic Climate change palsa Rubus chamaemorus Subarctic Tundra University of Copenhagen: Research Plant-Environment Interactions 5 1
institution Open Polar
collection University of Copenhagen: Research
op_collection_id ftcopenhagenunip
language English
topic Arctic
climate change
cloud cover
temperature
tundra
vegetation change
spellingShingle Arctic
climate change
cloud cover
temperature
tundra
vegetation change
Ndah, Flobert A.
Maljanen, Marja
Kasurinen, Anne
Rinnan, Riikka
Michelsen, Anders
Kotilainen, Titta
Kivimäenpää, Minna
Acclimation of subarctic vegetation to warming and increased cloudiness
topic_facet Arctic
climate change
cloud cover
temperature
tundra
vegetation change
description Subarctic ecosystems are exposed to elevated temperatures and increased cloudiness in a changing climate with potentially important effects on vegetation structure, composition, and ecosystem functioning. We investigated the individual and combined effects of warming and increased cloudiness on vegetation greenness and cover in mesocosms from two tundra and one palsa mire ecosystems kept under strict environmental control in climate chambers. We also investigated leaf anatomical and biochemical traits of four dominant vascular plant species (Empetrum hermaphroditum, Vaccinium myrtillus, Vaccinium vitis-idaea, and Rubus chamaemorus). Vegetation greenness increased in response to warming in all sites and in response to increased cloudiness in the tundra sites but without associated increases in vegetation cover or biomass, except that E. hermaphroditum biomass increased under warming. The combined warming and increased cloudiness treatment had an additive effect on vegetation greenness in all sites. It also increased the cover of graminoids and forbs in one of the tundra sites. Warming increased leaf dry mass per area of V. myrtillus and R. chamaemorus, and glandular trichome density of V. myrtillus and decreased spongy intercellular space of E. hermaphroditum and V. vitis-idaea. Increased cloudiness decreased leaf dry mass per area of V. myrtillus, palisade thickness of E. hermaphroditum, and stomata density of E. hermaphroditum and V. vitis-idaea, and increased leaf area and epidermis thickness of V. myrtillus, leaf shape index and nitrogen of E. hermaphroditum, and palisade intercellular space of V. vitis-idaea. The combined treatment caused thinner leaves and decreased leaf carbon for V. myrtillus, and increased leaf chlorophyll of E. hermaphroditum. We show that under future warmer increased cloudiness conditions in the Subarctic (as simulated in our experiment), vegetation composition and distribution will change, mostly dominated by graminoids and forbs. These changes will depend on the responses of leaf ...
format Article in Journal/Newspaper
author Ndah, Flobert A.
Maljanen, Marja
Kasurinen, Anne
Rinnan, Riikka
Michelsen, Anders
Kotilainen, Titta
Kivimäenpää, Minna
author_facet Ndah, Flobert A.
Maljanen, Marja
Kasurinen, Anne
Rinnan, Riikka
Michelsen, Anders
Kotilainen, Titta
Kivimäenpää, Minna
author_sort Ndah, Flobert A.
title Acclimation of subarctic vegetation to warming and increased cloudiness
title_short Acclimation of subarctic vegetation to warming and increased cloudiness
title_full Acclimation of subarctic vegetation to warming and increased cloudiness
title_fullStr Acclimation of subarctic vegetation to warming and increased cloudiness
title_full_unstemmed Acclimation of subarctic vegetation to warming and increased cloudiness
title_sort acclimation of subarctic vegetation to warming and increased cloudiness
publishDate 2024
url https://curis.ku.dk/portal/da/publications/acclimation-of-subarctic-vegetation-to-warming-and-increased-cloudiness(ba04e5d3-d43a-4700-8b37-0d1a4e477689).html
https://doi.org/10.1002/pei3.10130
https://curis.ku.dk/ws/files/381233550/Plant_Enviro_Interactions_2023_Ndah_Acclimation_of_subarctic_vegetation_to_warming_and_increased_cloudiness_2_17.pdf
genre Arctic
Climate change
palsa
Rubus chamaemorus
Subarctic
Tundra
genre_facet Arctic
Climate change
palsa
Rubus chamaemorus
Subarctic
Tundra
op_source Ndah , F A , Maljanen , M , Kasurinen , A , Rinnan , R , Michelsen , A , Kotilainen , T & Kivimäenpää , M 2024 , ' Acclimation of subarctic vegetation to warming and increased cloudiness ' , Plant-Environment Interactions , vol. 5 , no. 1 , e10130 . https://doi.org/10.1002/pei3.10130
op_rights info:eu-repo/semantics/openAccess
op_doi https://doi.org/10.1002/pei3.10130
container_title Plant-Environment Interactions
container_volume 5
container_issue 1
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