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...
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Online Access: | http://www.osti.gov/servlets/purl/1894318 https://www.osti.gov/biblio/1894318 https://doi.org/10.1111/gcb.16231 |
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ftosti:oai:osti.gov:1894318 2023-07-30T04:01:57+02:00 Microbiome assembly in thawing permafrost and its feedbacks to climate Ernakovich, Jessica G. Barbato, Robyn A. Rich, Virginia I. Schädel, Christina Hewitt, Rebecca E. Doherty, Stacey J. Whalen, Emily D Abbott, Benjamin W. Barta, Jiri Biasi, Christina Chabot, Chris L. Hultman, Jenni Knoblauch, Christian Lau Vetter, Maggie C. Y. Leewis, Mary‐Cathrine Liebner, Susanne Mackelprang, Rachel Onstott, Tullis C. Richter, Andreas Schütte, Ursel M E. Siljanen, Henri M. P. Taş, Neslihan Timling, Ina Vishnivetskaya, Tatiana A. Waldrop, Mark P. Winkel, Matthias 2022-11-21 application/pdf http://www.osti.gov/servlets/purl/1894318 https://www.osti.gov/biblio/1894318 https://doi.org/10.1111/gcb.16231 unknown http://www.osti.gov/servlets/purl/1894318 https://www.osti.gov/biblio/1894318 https://doi.org/10.1111/gcb.16231 doi:10.1111/gcb.16231 54 ENVIRONMENTAL SCIENCES 2022 ftosti https://doi.org/10.1111/gcb.16231 2023-07-11T10:15:48Z 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. Other/Unknown Material Arctic Climate change permafrost Thermokarst SciTec Connect (Office of Scientific and Technical Information - OSTI, U.S. Department of Energy) Arctic Global Change Biology 28 17 5007 5026 |
institution |
Open Polar |
collection |
SciTec Connect (Office of Scientific and Technical Information - OSTI, U.S. Department of Energy) |
op_collection_id |
ftosti |
language |
unknown |
topic |
54 ENVIRONMENTAL SCIENCES |
spellingShingle |
54 ENVIRONMENTAL SCIENCES Ernakovich, Jessica G. Barbato, Robyn A. Rich, Virginia I. Schädel, Christina Hewitt, Rebecca E. Doherty, Stacey J. Whalen, Emily D Abbott, Benjamin W. Barta, Jiri Biasi, Christina Chabot, Chris L. Hultman, Jenni Knoblauch, Christian Lau Vetter, Maggie C. Y. Leewis, Mary‐Cathrine Liebner, Susanne Mackelprang, Rachel Onstott, Tullis C. Richter, Andreas Schütte, Ursel M E. Siljanen, Henri M. P. Taş, Neslihan Timling, Ina Vishnivetskaya, Tatiana A. Waldrop, Mark P. Winkel, Matthias Microbiome assembly in thawing permafrost and its feedbacks to climate |
topic_facet |
54 ENVIRONMENTAL SCIENCES |
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. |
author |
Ernakovich, Jessica G. Barbato, Robyn A. Rich, Virginia I. Schädel, Christina Hewitt, Rebecca E. Doherty, Stacey J. Whalen, Emily D Abbott, Benjamin W. Barta, Jiri Biasi, Christina Chabot, Chris L. Hultman, Jenni Knoblauch, Christian Lau Vetter, Maggie C. Y. Leewis, Mary‐Cathrine Liebner, Susanne Mackelprang, Rachel Onstott, Tullis C. Richter, Andreas Schütte, Ursel M E. Siljanen, Henri M. P. Taş, Neslihan Timling, Ina Vishnivetskaya, Tatiana A. Waldrop, Mark P. Winkel, Matthias |
author_facet |
Ernakovich, Jessica G. Barbato, Robyn A. Rich, Virginia I. Schädel, Christina Hewitt, Rebecca E. Doherty, Stacey J. Whalen, Emily D Abbott, Benjamin W. Barta, Jiri Biasi, Christina Chabot, Chris L. Hultman, Jenni Knoblauch, Christian Lau Vetter, Maggie C. Y. Leewis, Mary‐Cathrine Liebner, Susanne Mackelprang, Rachel Onstott, Tullis C. Richter, Andreas Schütte, Ursel M E. Siljanen, Henri M. P. Taş, Neslihan Timling, Ina Vishnivetskaya, Tatiana A. Waldrop, Mark P. Winkel, Matthias |
author_sort |
Ernakovich, Jessica G. |
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 |
http://www.osti.gov/servlets/purl/1894318 https://www.osti.gov/biblio/1894318 https://doi.org/10.1111/gcb.16231 |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic Climate change permafrost Thermokarst |
genre_facet |
Arctic Climate change permafrost Thermokarst |
op_relation |
http://www.osti.gov/servlets/purl/1894318 https://www.osti.gov/biblio/1894318 https://doi.org/10.1111/gcb.16231 doi:10.1111/gcb.16231 |
op_doi |
https://doi.org/10.1111/gcb.16231 |
container_title |
Global Change Biology |
container_volume |
28 |
container_issue |
17 |
container_start_page |
5007 |
op_container_end_page |
5026 |
_version_ |
1772812692705247232 |