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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ftcdlib:oai:escholarship.org:ark:/13030/qt1k31b811 2024-01-07T09:41:35+01:00 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 Vetter, Maggie CY Lau Leewis, Mary‐Cathrine Liebner, Susanne Mackelprang, Rachel Onstott, Tullis C Richter, Andreas Schütte, Ursel ME Siljanen, Henri MP Taş, Neslihan Timling, Ina Vishnivetskaya, Tatiana A Waldrop, Mark P Winkel, Matthias 5007 - 5026 2022-09-01 application/pdf https://escholarship.org/uc/item/1k31b811 unknown eScholarship, University of California qt1k31b811 https://escholarship.org/uc/item/1k31b811 public Global Change Biology, vol 28, iss 17 Microbiology Biological Sciences Ecology Climate Action Arctic Regions Feedback Microbiota Permafrost Phylogeny Soil Environmental Sciences Earth sciences article 2022 ftcdlib 2023-12-11T19:07:12Z 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 University of California: eScholarship Arctic |
institution |
Open Polar |
collection |
University of California: eScholarship |
op_collection_id |
ftcdlib |
language |
unknown |
topic |
Microbiology Biological Sciences Ecology Climate Action Arctic Regions Feedback Microbiota Permafrost Phylogeny Soil Environmental Sciences Earth sciences |
spellingShingle |
Microbiology Biological Sciences Ecology Climate Action Arctic Regions Feedback Microbiota Permafrost Phylogeny Soil Environmental Sciences Earth 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 Vetter, Maggie CY Lau Leewis, Mary‐Cathrine Liebner, Susanne Mackelprang, Rachel Onstott, Tullis C Richter, Andreas Schütte, Ursel ME Siljanen, Henri MP Taş, Neslihan Timling, Ina Vishnivetskaya, Tatiana A Waldrop, Mark P Winkel, Matthias Microbiome assembly in thawing permafrost and its feedbacks to climate |
topic_facet |
Microbiology Biological Sciences Ecology Climate Action Arctic Regions Feedback Microbiota Permafrost Phylogeny Soil Environmental Sciences Earth 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. |
format |
Article in Journal/Newspaper |
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 Vetter, Maggie CY Lau Leewis, Mary‐Cathrine Liebner, Susanne Mackelprang, Rachel Onstott, Tullis C Richter, Andreas Schütte, Ursel ME Siljanen, Henri MP 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 Vetter, Maggie CY Lau Leewis, Mary‐Cathrine Liebner, Susanne Mackelprang, Rachel Onstott, Tullis C Richter, Andreas Schütte, Ursel ME Siljanen, Henri MP 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 |
publisher |
eScholarship, University of California |
publishDate |
2022 |
url |
https://escholarship.org/uc/item/1k31b811 |
op_coverage |
5007 - 5026 |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic Climate change permafrost Thermokarst |
genre_facet |
Arctic Climate change permafrost Thermokarst |
op_source |
Global Change Biology, vol 28, iss 17 |
op_relation |
qt1k31b811 https://escholarship.org/uc/item/1k31b811 |
op_rights |
public |
_version_ |
1787422375299514368 |