Maximum summer temperatures predict the temperature adaptation of Arctic soil bacterial communities
Rapid warming of the Arctic terrestrial region has the potential to increase soil decomposition rates and form a carbon-driven feedback to future climate change. For an accurate prediction of the role of soil microbes in these processes, it will be important to understand the temperature responses o...
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ftdoajarticles:oai:doaj.org/article:c15bba16023d48d38523835e9e7f71fa 2023-05-15T14:41:25+02:00 Maximum summer temperatures predict the temperature adaptation of Arctic soil bacterial communities R. Rijkers M. Dekker R. Aerts J. T. Weedon 2023-02-01T00:00:00Z https://doi.org/10.5194/bg-20-767-2023 https://doaj.org/article/c15bba16023d48d38523835e9e7f71fa EN eng Copernicus Publications https://bg.copernicus.org/articles/20/767/2023/bg-20-767-2023.pdf https://doaj.org/toc/1726-4170 https://doaj.org/toc/1726-4189 doi:10.5194/bg-20-767-2023 1726-4170 1726-4189 https://doaj.org/article/c15bba16023d48d38523835e9e7f71fa Biogeosciences, Vol 20, Pp 767-780 (2023) Ecology QH540-549.5 Life QH501-531 Geology QE1-996.5 article 2023 ftdoajarticles https://doi.org/10.5194/bg-20-767-2023 2023-02-19T01:27:04Z Rapid warming of the Arctic terrestrial region has the potential to increase soil decomposition rates and form a carbon-driven feedback to future climate change. For an accurate prediction of the role of soil microbes in these processes, it will be important to understand the temperature responses of soil bacterial communities and implement them into biogeochemical models. The temperature adaptation of soil bacterial communities for a large part of the Arctic region is unknown. We evaluated the current temperature adaption of soil bacterial communities from 12 sampling sites in the sub- to High Arctic region. Temperature adaptation differed substantially between the soil bacterial communities of these sites, with estimates of optimal growth temperature ( T opt ) ranging between 23.4 ± 0.5 and 34.1 ± 3.7 ∘ C. We evaluated possible statistical models for the prediction of the temperature adaption of soil bacterial communities based on different climate indices derived from soil temperature records or on bacterial community composition data. We found that highest daily average soil temperature was the best predictor for the T opt of the soil bacterial communities, increasing by 0.63 ∘ C ∘ C −1 . We found no support for the prediction of temperature adaptation by regression tree analysis based on the relative abundance data of the most common bacterial species. Increasing summer temperatures will likely increase T opt of soil bacterial communities in the Arctic. Incorporating this mechanism into soil biogeochemical models and combining it with projections of soil temperature will help to reduce uncertainty in assessments of the vulnerability of soil carbon stocks in the Arctic. Article in Journal/Newspaper Arctic Climate change Directory of Open Access Journals: DOAJ Articles Arctic Biogeosciences 20 4 767 780 |
institution |
Open Polar |
collection |
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 R. Rijkers M. Dekker R. Aerts J. T. Weedon Maximum summer temperatures predict the temperature adaptation of Arctic soil bacterial communities |
topic_facet |
Ecology QH540-549.5 Life QH501-531 Geology QE1-996.5 |
description |
Rapid warming of the Arctic terrestrial region has the potential to increase soil decomposition rates and form a carbon-driven feedback to future climate change. For an accurate prediction of the role of soil microbes in these processes, it will be important to understand the temperature responses of soil bacterial communities and implement them into biogeochemical models. The temperature adaptation of soil bacterial communities for a large part of the Arctic region is unknown. We evaluated the current temperature adaption of soil bacterial communities from 12 sampling sites in the sub- to High Arctic region. Temperature adaptation differed substantially between the soil bacterial communities of these sites, with estimates of optimal growth temperature ( T opt ) ranging between 23.4 ± 0.5 and 34.1 ± 3.7 ∘ C. We evaluated possible statistical models for the prediction of the temperature adaption of soil bacterial communities based on different climate indices derived from soil temperature records or on bacterial community composition data. We found that highest daily average soil temperature was the best predictor for the T opt of the soil bacterial communities, increasing by 0.63 ∘ C ∘ C −1 . We found no support for the prediction of temperature adaptation by regression tree analysis based on the relative abundance data of the most common bacterial species. Increasing summer temperatures will likely increase T opt of soil bacterial communities in the Arctic. Incorporating this mechanism into soil biogeochemical models and combining it with projections of soil temperature will help to reduce uncertainty in assessments of the vulnerability of soil carbon stocks in the Arctic. |
format |
Article in Journal/Newspaper |
author |
R. Rijkers M. Dekker R. Aerts J. T. Weedon |
author_facet |
R. Rijkers M. Dekker R. Aerts J. T. Weedon |
author_sort |
R. Rijkers |
title |
Maximum summer temperatures predict the temperature adaptation of Arctic soil bacterial communities |
title_short |
Maximum summer temperatures predict the temperature adaptation of Arctic soil bacterial communities |
title_full |
Maximum summer temperatures predict the temperature adaptation of Arctic soil bacterial communities |
title_fullStr |
Maximum summer temperatures predict the temperature adaptation of Arctic soil bacterial communities |
title_full_unstemmed |
Maximum summer temperatures predict the temperature adaptation of Arctic soil bacterial communities |
title_sort |
maximum summer temperatures predict the temperature adaptation of arctic soil bacterial communities |
publisher |
Copernicus Publications |
publishDate |
2023 |
url |
https://doi.org/10.5194/bg-20-767-2023 https://doaj.org/article/c15bba16023d48d38523835e9e7f71fa |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic Climate change |
genre_facet |
Arctic Climate change |
op_source |
Biogeosciences, Vol 20, Pp 767-780 (2023) |
op_relation |
https://bg.copernicus.org/articles/20/767/2023/bg-20-767-2023.pdf https://doaj.org/toc/1726-4170 https://doaj.org/toc/1726-4189 doi:10.5194/bg-20-767-2023 1726-4170 1726-4189 https://doaj.org/article/c15bba16023d48d38523835e9e7f71fa |
op_doi |
https://doi.org/10.5194/bg-20-767-2023 |
container_title |
Biogeosciences |
container_volume |
20 |
container_issue |
4 |
container_start_page |
767 |
op_container_end_page |
780 |
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1766313198009450496 |