The transition from stochastic to deterministic bacterial community assembly during permafrost thaw succession
The Northern high latitudes are warming twice as fast as the global average, and permafrost has become vulnerable to thaw. Changes to the environment during thaw leads to shifts in microbial communities and their associated functions, such as greenhouse gas emissions. Understanding the ecological pr...
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ftslunivuppsala:oai:pub.epsilon.slu.se:19132 2023-05-15T12:59:44+02:00 The transition from stochastic to deterministic bacterial community assembly during permafrost thaw succession Doherty, Stacey Jarvis Barbato, Robyn A. Grandy, A. Stuart Thomas, W. Kelley Monteux, Sylvain Dorrepaal, Ellen Johansson, Margareta Ernakovich, Jessica G. 2020 application/pdf https://pub.epsilon.slu.se/19132/ https://pub.epsilon.slu.se/19132/1/doherty_js_et_al_201209.pdf en eng eng https://pub.epsilon.slu.se/19132/1/doherty_js_et_al_201209.pdf Doherty, Stacey Jarvis and Barbato, Robyn A. and Grandy, A. Stuart and Thomas, W. Kelley and Monteux, Sylvain and Dorrepaal, Ellen and Johansson, Margareta and Ernakovich, Jessica G. (2020). The transition from stochastic to deterministic bacterial community assembly during permafrost thaw succession. Frontiers in Microbiology. 11 , 596589 [Research article] Microbiology (Microbiology in the medical area to be 30109) Ecology Research article NonPeerReviewed 2020 ftslunivuppsala 2022-01-09T19:15:48Z The Northern high latitudes are warming twice as fast as the global average, and permafrost has become vulnerable to thaw. Changes to the environment during thaw leads to shifts in microbial communities and their associated functions, such as greenhouse gas emissions. Understanding the ecological processes that structure the identity and abundance (i.e., assembly) of pre- and post-thaw communities may improve predictions of the functional outcomes of permafrost thaw. We characterized microbial community assembly during permafrost thaw using in situ observations and a laboratory incubation of soils from the Storflaket Mire in Abisko, Sweden, where permafrost thaw has occurred over the past decade. In situ observations indicated that bacterial community assembly was driven by randomness (i.e., stochastic processes) immediately after thaw with drift and dispersal limitation being the dominant processes. As post-thaw succession progressed, environmentally driven (i.e., deterministic) processes became increasingly important in structuring microbial communities where homogenizing selection was the only process structuring upper active layer soils. Furthermore, laboratory-induced thaw reflected assembly dynamics immediately after thaw indicated by an increase in drift, but did not capture the longterm effects of permafrost thaw on microbial community dynamics. Our results did not reflect a link between assembly dynamics and carbon emissions, likely because respiration is the product of many processes in microbial communities. Identification of dominant microbial community assembly processes has the potential to improve our understanding of the ecological impact of permafrost thaw and the permafrost– climate feedback. Article in Journal/Newspaper Abisko permafrost Swedish University of Agricultural Sciences (SLU): Epsilon Open Archive Abisko ENVELOPE(18.829,18.829,68.349,68.349) |
institution |
Open Polar |
collection |
Swedish University of Agricultural Sciences (SLU): Epsilon Open Archive |
op_collection_id |
ftslunivuppsala |
language |
English |
topic |
Microbiology (Microbiology in the medical area to be 30109) Ecology |
spellingShingle |
Microbiology (Microbiology in the medical area to be 30109) Ecology Doherty, Stacey Jarvis Barbato, Robyn A. Grandy, A. Stuart Thomas, W. Kelley Monteux, Sylvain Dorrepaal, Ellen Johansson, Margareta Ernakovich, Jessica G. The transition from stochastic to deterministic bacterial community assembly during permafrost thaw succession |
topic_facet |
Microbiology (Microbiology in the medical area to be 30109) Ecology |
description |
The Northern high latitudes are warming twice as fast as the global average, and permafrost has become vulnerable to thaw. Changes to the environment during thaw leads to shifts in microbial communities and their associated functions, such as greenhouse gas emissions. Understanding the ecological processes that structure the identity and abundance (i.e., assembly) of pre- and post-thaw communities may improve predictions of the functional outcomes of permafrost thaw. We characterized microbial community assembly during permafrost thaw using in situ observations and a laboratory incubation of soils from the Storflaket Mire in Abisko, Sweden, where permafrost thaw has occurred over the past decade. In situ observations indicated that bacterial community assembly was driven by randomness (i.e., stochastic processes) immediately after thaw with drift and dispersal limitation being the dominant processes. As post-thaw succession progressed, environmentally driven (i.e., deterministic) processes became increasingly important in structuring microbial communities where homogenizing selection was the only process structuring upper active layer soils. Furthermore, laboratory-induced thaw reflected assembly dynamics immediately after thaw indicated by an increase in drift, but did not capture the longterm effects of permafrost thaw on microbial community dynamics. Our results did not reflect a link between assembly dynamics and carbon emissions, likely because respiration is the product of many processes in microbial communities. Identification of dominant microbial community assembly processes has the potential to improve our understanding of the ecological impact of permafrost thaw and the permafrost– climate feedback. |
format |
Article in Journal/Newspaper |
author |
Doherty, Stacey Jarvis Barbato, Robyn A. Grandy, A. Stuart Thomas, W. Kelley Monteux, Sylvain Dorrepaal, Ellen Johansson, Margareta Ernakovich, Jessica G. |
author_facet |
Doherty, Stacey Jarvis Barbato, Robyn A. Grandy, A. Stuart Thomas, W. Kelley Monteux, Sylvain Dorrepaal, Ellen Johansson, Margareta Ernakovich, Jessica G. |
author_sort |
Doherty, Stacey Jarvis |
title |
The transition from stochastic to deterministic bacterial community assembly during permafrost thaw succession |
title_short |
The transition from stochastic to deterministic bacterial community assembly during permafrost thaw succession |
title_full |
The transition from stochastic to deterministic bacterial community assembly during permafrost thaw succession |
title_fullStr |
The transition from stochastic to deterministic bacterial community assembly during permafrost thaw succession |
title_full_unstemmed |
The transition from stochastic to deterministic bacterial community assembly during permafrost thaw succession |
title_sort |
transition from stochastic to deterministic bacterial community assembly during permafrost thaw succession |
publishDate |
2020 |
url |
https://pub.epsilon.slu.se/19132/ https://pub.epsilon.slu.se/19132/1/doherty_js_et_al_201209.pdf |
long_lat |
ENVELOPE(18.829,18.829,68.349,68.349) |
geographic |
Abisko |
geographic_facet |
Abisko |
genre |
Abisko permafrost |
genre_facet |
Abisko permafrost |
op_relation |
https://pub.epsilon.slu.se/19132/1/doherty_js_et_al_201209.pdf Doherty, Stacey Jarvis and Barbato, Robyn A. and Grandy, A. Stuart and Thomas, W. Kelley and Monteux, Sylvain and Dorrepaal, Ellen and Johansson, Margareta and Ernakovich, Jessica G. (2020). The transition from stochastic to deterministic bacterial community assembly during permafrost thaw succession. Frontiers in Microbiology. 11 , 596589 [Research article] |
_version_ |
1766092856093573120 |