Differentiation of cognate bacterial communities in thermokarst landscapes: implications for ecological consequences of permafrost degradation
Thermokarst processes likely result in new habitats harboring novel bacterial communities in degraded permafrost soil (PB), thermokarst lake sediments (SB), and lake water (WB). Our study aimed to investigate the paired PB, SB, and WB across the Qinghai–Tibet Plateau (QTP) by assessing the spatial p...
Published in: | Biogeosciences |
---|---|
Main Authors: | , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
Copernicus Publications
2023
|
Subjects: | |
Online Access: | https://doi.org/10.5194/bg-20-4241-2023 https://doaj.org/article/cf61f25bebaf4290b30de08d30e77634 |
id |
ftdoajarticles:oai:doaj.org/article:cf61f25bebaf4290b30de08d30e77634 |
---|---|
record_format |
openpolar |
spelling |
ftdoajarticles:oai:doaj.org/article:cf61f25bebaf4290b30de08d30e77634 2023-11-12T04:24:32+01:00 Differentiation of cognate bacterial communities in thermokarst landscapes: implications for ecological consequences of permafrost degradation Z. Ren S. Ye H. Li X. Huang L. Chen 2023-10-01T00:00:00Z https://doi.org/10.5194/bg-20-4241-2023 https://doaj.org/article/cf61f25bebaf4290b30de08d30e77634 EN eng Copernicus Publications https://bg.copernicus.org/articles/20/4241/2023/bg-20-4241-2023.pdf https://doaj.org/toc/1726-4170 https://doaj.org/toc/1726-4189 doi:10.5194/bg-20-4241-2023 1726-4170 1726-4189 https://doaj.org/article/cf61f25bebaf4290b30de08d30e77634 Biogeosciences, Vol 20, Pp 4241-4258 (2023) Ecology QH540-549.5 Life QH501-531 Geology QE1-996.5 article 2023 ftdoajarticles https://doi.org/10.5194/bg-20-4241-2023 2023-10-22T00:41:49Z Thermokarst processes likely result in new habitats harboring novel bacterial communities in degraded permafrost soil (PB), thermokarst lake sediments (SB), and lake water (WB). Our study aimed to investigate the paired PB, SB, and WB across the Qinghai–Tibet Plateau (QTP) by assessing the spatial pattern of diversity as well as assembly mechanisms of these bacterial communities. Each habitat had distinct bacterial assemblages, with lower α diversity and higher β diversity in WB than in SB and PB. However, up to 41 % of the operational taxonomic units (OTUs) were shared by PB, SB, and WB, suggesting that many taxa originate from the same sources via dispersal. SB and WB had reciprocal dispersal effects, and both were correlated with PB. Dispersal limitation was the most dominant assembly process shaping PB and SB, while homogeneous selection was the most dominant for WB. Bacterial communities of the three habitats correlated differently with environmental variables, but latitude, mean annual precipitation, and pH were the common factors associated with their β diversity, while total phosphorus was the common factor associated with their assembly processes. Our results imply that thermokarst processes result in diverse habitats that have distinct bacterial communities that differ in diversity, assembly mechanisms, and environmental drivers. Article in Journal/Newspaper permafrost Thermokarst Directory of Open Access Journals: DOAJ Articles Biogeosciences 20 20 4241 4258 |
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 Z. Ren S. Ye H. Li X. Huang L. Chen Differentiation of cognate bacterial communities in thermokarst landscapes: implications for ecological consequences of permafrost degradation |
topic_facet |
Ecology QH540-549.5 Life QH501-531 Geology QE1-996.5 |
description |
Thermokarst processes likely result in new habitats harboring novel bacterial communities in degraded permafrost soil (PB), thermokarst lake sediments (SB), and lake water (WB). Our study aimed to investigate the paired PB, SB, and WB across the Qinghai–Tibet Plateau (QTP) by assessing the spatial pattern of diversity as well as assembly mechanisms of these bacterial communities. Each habitat had distinct bacterial assemblages, with lower α diversity and higher β diversity in WB than in SB and PB. However, up to 41 % of the operational taxonomic units (OTUs) were shared by PB, SB, and WB, suggesting that many taxa originate from the same sources via dispersal. SB and WB had reciprocal dispersal effects, and both were correlated with PB. Dispersal limitation was the most dominant assembly process shaping PB and SB, while homogeneous selection was the most dominant for WB. Bacterial communities of the three habitats correlated differently with environmental variables, but latitude, mean annual precipitation, and pH were the common factors associated with their β diversity, while total phosphorus was the common factor associated with their assembly processes. Our results imply that thermokarst processes result in diverse habitats that have distinct bacterial communities that differ in diversity, assembly mechanisms, and environmental drivers. |
format |
Article in Journal/Newspaper |
author |
Z. Ren S. Ye H. Li X. Huang L. Chen |
author_facet |
Z. Ren S. Ye H. Li X. Huang L. Chen |
author_sort |
Z. Ren |
title |
Differentiation of cognate bacterial communities in thermokarst landscapes: implications for ecological consequences of permafrost degradation |
title_short |
Differentiation of cognate bacterial communities in thermokarst landscapes: implications for ecological consequences of permafrost degradation |
title_full |
Differentiation of cognate bacterial communities in thermokarst landscapes: implications for ecological consequences of permafrost degradation |
title_fullStr |
Differentiation of cognate bacterial communities in thermokarst landscapes: implications for ecological consequences of permafrost degradation |
title_full_unstemmed |
Differentiation of cognate bacterial communities in thermokarst landscapes: implications for ecological consequences of permafrost degradation |
title_sort |
differentiation of cognate bacterial communities in thermokarst landscapes: implications for ecological consequences of permafrost degradation |
publisher |
Copernicus Publications |
publishDate |
2023 |
url |
https://doi.org/10.5194/bg-20-4241-2023 https://doaj.org/article/cf61f25bebaf4290b30de08d30e77634 |
genre |
permafrost Thermokarst |
genre_facet |
permafrost Thermokarst |
op_source |
Biogeosciences, Vol 20, Pp 4241-4258 (2023) |
op_relation |
https://bg.copernicus.org/articles/20/4241/2023/bg-20-4241-2023.pdf https://doaj.org/toc/1726-4170 https://doaj.org/toc/1726-4189 doi:10.5194/bg-20-4241-2023 1726-4170 1726-4189 https://doaj.org/article/cf61f25bebaf4290b30de08d30e77634 |
op_doi |
https://doi.org/10.5194/bg-20-4241-2023 |
container_title |
Biogeosciences |
container_volume |
20 |
container_issue |
20 |
container_start_page |
4241 |
op_container_end_page |
4258 |
_version_ |
1782339017395666944 |