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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ftluke:oai:jukuri.luke.fi:10024/554095 2024-09-15T18:02:36+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 orcid:0000-0003-0500-445X orcid:0000-0002-2822-9734 4100110310 4100210510 Luonnonvarakeskus false https://jukuri.luke.fi/handle/10024/554095 https://doi.org/10.1002/pei3.10130 en eng Wiley Plant-Environment Interactions 10.1002/pei3.10130 2575-6265 1 5 e10130 https://jukuri.luke.fi/handle/10024/554095 URN:NBN:fi-fe2024080563767 https://dx.doi.org/10.1002/pei3.10130 CC BY 4.0 Arctic climate change cloud cover temperature tundra vegetation change 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 https://doi.org/10.1002/pei3.10130 2024-08-05T23:36:22Z 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 Climate change palsa Rubus chamaemorus Subarctic Tundra Natural Resources Institute Finland: Jukuri Plant-Environment Interactions 5 1 |
institution |
Open Polar |
collection |
Natural Resources Institute Finland: Jukuri |
op_collection_id |
ftluke |
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 ... |
author2 |
orcid:0000-0003-0500-445X orcid:0000-0002-2822-9734 4100110310 4100210510 Luonnonvarakeskus |
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 |
publisher |
Wiley |
url |
https://jukuri.luke.fi/handle/10024/554095 https://doi.org/10.1002/pei3.10130 |
genre |
Climate change palsa Rubus chamaemorus Subarctic Tundra |
genre_facet |
Climate change palsa Rubus chamaemorus Subarctic Tundra |
op_relation |
Plant-Environment Interactions 10.1002/pei3.10130 2575-6265 1 5 e10130 https://jukuri.luke.fi/handle/10024/554095 URN:NBN:fi-fe2024080563767 https://dx.doi.org/10.1002/pei3.10130 |
op_rights |
CC BY 4.0 |
op_doi |
https://doi.org/10.1002/pei3.10130 |
container_title |
Plant-Environment Interactions |
container_volume |
5 |
container_issue |
1 |
_version_ |
1810440037962088448 |