Microbiome assembly in thawing permafrost and its feedbacks to climate
The physical and chemical changes that accompany permafrost thaw directly influence the microbial communities that mediate the decomposition of formerly frozen organic matter, leading to uncertainty in permafrost–climate feedbacks. Although changes to microbial metabolism and community structure are...
Published in: | Global Change Biology |
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2022
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Online Access: | https://gfzpublic.gfz-potsdam.de/pubman/item/item_5012116 https://gfzpublic.gfz-potsdam.de/pubman/item/item_5012116_2/component/file_5013110/5012116.pdf |
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ftgfzpotsdam:oai:gfzpublic.gfz-potsdam.de:item_5012116 2023-05-15T15:11:24+02:00 Microbiome assembly in thawing permafrost and its feedbacks to climate Ernakovich, J. Barbato, R. Rich, V. Schädel, C. Hewitt, R. Doherty, S. Whalen, E. Abbott, B. Barta, J. Biasi, C. Chabot, C. Hultman, J. Knoblauch, C. Vetter, M. Leewis, M. Liebner, S. Mackelprang, R. Onstott, T. Richter, A. Schütte, U. Siljanen, H. Taş, N. Timling, I. Vishnivetskaya, T. Waldrop, M. Winkel, M. 2022 application/pdf https://gfzpublic.gfz-potsdam.de/pubman/item/item_5012116 https://gfzpublic.gfz-potsdam.de/pubman/item/item_5012116_2/component/file_5013110/5012116.pdf unknown info:eu-repo/semantics/altIdentifier/doi/10.1111/gcb.16231 https://gfzpublic.gfz-potsdam.de/pubman/item/item_5012116 https://gfzpublic.gfz-potsdam.de/pubman/item/item_5012116_2/component/file_5013110/5012116.pdf info:eu-repo/semantics/openAccess https://creativecommons.org/licenses/by/4.0/ CC-BY Global Change Biology info:eu-repo/semantics/article 2022 ftgfzpotsdam https://doi.org/10.1111/gcb.16231 2022-09-14T05:58:21Z The physical and chemical changes that accompany permafrost thaw directly influence the microbial communities that mediate the decomposition of formerly frozen organic matter, leading to uncertainty in permafrost–climate feedbacks. Although changes to microbial metabolism and community structure are documented following thaw, the generality of post-thaw assembly patterns across permafrost soils of the world remains uncertain, limiting our ability to predict biogeochemistry and microbial community responses to climate change. Based on our review of the Arctic microbiome, permafrost microbiology, and community ecology, we propose that Assembly Theory provides a framework to better understand thaw-mediated microbiome changes and the implications for community function and climate feedbacks. This framework posits that the prevalence of deterministic or stochastic processes indicates whether the community is well-suited to thrive in changing environmental conditions. We predict that on a short timescale and following high-disturbance thaw (e.g., thermokarst), stochasticity dominates post-thaw microbiome assembly, suggesting that functional predictions will be aided by detailed information about the microbiome. At a longer timescale and lower-intensity disturbance (e.g., active layer deepening), deterministic processes likely dominate, making environmental parameters sufficient for predicting function. We propose that the contribution of stochastic and deterministic processes to post-thaw microbiome assembly depends on the characteristics of the thaw disturbance, as well as characteristics of the microbial community, such as the ecological and phylogenetic breadth of functional guilds, their functional redundancy, and biotic interactions. These propagate across space and time, potentially providing a means for predicting the microbial forcing of greenhouse gas feedbacks to global climate change. Article in Journal/Newspaper Arctic Climate change permafrost Thermokarst GFZpublic (German Research Centre for Geosciences, Helmholtz-Zentrum Potsdam) Arctic Global Change Biology |
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Open Polar |
collection |
GFZpublic (German Research Centre for Geosciences, Helmholtz-Zentrum Potsdam) |
op_collection_id |
ftgfzpotsdam |
language |
unknown |
description |
The physical and chemical changes that accompany permafrost thaw directly influence the microbial communities that mediate the decomposition of formerly frozen organic matter, leading to uncertainty in permafrost–climate feedbacks. Although changes to microbial metabolism and community structure are documented following thaw, the generality of post-thaw assembly patterns across permafrost soils of the world remains uncertain, limiting our ability to predict biogeochemistry and microbial community responses to climate change. Based on our review of the Arctic microbiome, permafrost microbiology, and community ecology, we propose that Assembly Theory provides a framework to better understand thaw-mediated microbiome changes and the implications for community function and climate feedbacks. This framework posits that the prevalence of deterministic or stochastic processes indicates whether the community is well-suited to thrive in changing environmental conditions. We predict that on a short timescale and following high-disturbance thaw (e.g., thermokarst), stochasticity dominates post-thaw microbiome assembly, suggesting that functional predictions will be aided by detailed information about the microbiome. At a longer timescale and lower-intensity disturbance (e.g., active layer deepening), deterministic processes likely dominate, making environmental parameters sufficient for predicting function. We propose that the contribution of stochastic and deterministic processes to post-thaw microbiome assembly depends on the characteristics of the thaw disturbance, as well as characteristics of the microbial community, such as the ecological and phylogenetic breadth of functional guilds, their functional redundancy, and biotic interactions. These propagate across space and time, potentially providing a means for predicting the microbial forcing of greenhouse gas feedbacks to global climate change. |
format |
Article in Journal/Newspaper |
author |
Ernakovich, J. Barbato, R. Rich, V. Schädel, C. Hewitt, R. Doherty, S. Whalen, E. Abbott, B. Barta, J. Biasi, C. Chabot, C. Hultman, J. Knoblauch, C. Vetter, M. Leewis, M. Liebner, S. Mackelprang, R. Onstott, T. Richter, A. Schütte, U. Siljanen, H. Taş, N. Timling, I. Vishnivetskaya, T. Waldrop, M. Winkel, M. |
spellingShingle |
Ernakovich, J. Barbato, R. Rich, V. Schädel, C. Hewitt, R. Doherty, S. Whalen, E. Abbott, B. Barta, J. Biasi, C. Chabot, C. Hultman, J. Knoblauch, C. Vetter, M. Leewis, M. Liebner, S. Mackelprang, R. Onstott, T. Richter, A. Schütte, U. Siljanen, H. Taş, N. Timling, I. Vishnivetskaya, T. Waldrop, M. Winkel, M. Microbiome assembly in thawing permafrost and its feedbacks to climate |
author_facet |
Ernakovich, J. Barbato, R. Rich, V. Schädel, C. Hewitt, R. Doherty, S. Whalen, E. Abbott, B. Barta, J. Biasi, C. Chabot, C. Hultman, J. Knoblauch, C. Vetter, M. Leewis, M. Liebner, S. Mackelprang, R. Onstott, T. Richter, A. Schütte, U. Siljanen, H. Taş, N. Timling, I. Vishnivetskaya, T. Waldrop, M. Winkel, M. |
author_sort |
Ernakovich, J. |
title |
Microbiome assembly in thawing permafrost and its feedbacks to climate |
title_short |
Microbiome assembly in thawing permafrost and its feedbacks to climate |
title_full |
Microbiome assembly in thawing permafrost and its feedbacks to climate |
title_fullStr |
Microbiome assembly in thawing permafrost and its feedbacks to climate |
title_full_unstemmed |
Microbiome assembly in thawing permafrost and its feedbacks to climate |
title_sort |
microbiome assembly in thawing permafrost and its feedbacks to climate |
publishDate |
2022 |
url |
https://gfzpublic.gfz-potsdam.de/pubman/item/item_5012116 https://gfzpublic.gfz-potsdam.de/pubman/item/item_5012116_2/component/file_5013110/5012116.pdf |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic Climate change permafrost Thermokarst |
genre_facet |
Arctic Climate change permafrost Thermokarst |
op_source |
Global Change Biology |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1111/gcb.16231 https://gfzpublic.gfz-potsdam.de/pubman/item/item_5012116 https://gfzpublic.gfz-potsdam.de/pubman/item/item_5012116_2/component/file_5013110/5012116.pdf |
op_rights |
info:eu-repo/semantics/openAccess https://creativecommons.org/licenses/by/4.0/ |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.1111/gcb.16231 |
container_title |
Global Change Biology |
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1766342262953869312 |