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Anthropogenic Intensity-Determined Assembly and Network Stability of Bacterioplankton Communities in the Le’an River

Bacterioplankton are essential components of riverine ecosystems. However, the mechanisms (deterministic or stochastic processes) and co-occurrence networks by which these communities respond to anthropogenic disturbances are not well understood. Here, we integrated niche-neutrality dynamic balancin...

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Autores principales: Wu, Bobo, Wang, Peng, Devlin, Adam Thomas, She, Yuanyang, Zhao, Jun, Xia, Yang, Huang, Yi, Chen, Lu, Zhang, Hua, Nie, Minghua, Ding, Mingjun
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Frontiers Media S.A. 2022
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9114710/
https://www.ncbi.nlm.nih.gov/pubmed/35602050
http://dx.doi.org/10.3389/fmicb.2022.806036
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author Wu, Bobo
Wang, Peng
Devlin, Adam Thomas
She, Yuanyang
Zhao, Jun
Xia, Yang
Huang, Yi
Chen, Lu
Zhang, Hua
Nie, Minghua
Ding, Mingjun
author_facet Wu, Bobo
Wang, Peng
Devlin, Adam Thomas
She, Yuanyang
Zhao, Jun
Xia, Yang
Huang, Yi
Chen, Lu
Zhang, Hua
Nie, Minghua
Ding, Mingjun
author_sort Wu, Bobo
collection PubMed
description Bacterioplankton are essential components of riverine ecosystems. However, the mechanisms (deterministic or stochastic processes) and co-occurrence networks by which these communities respond to anthropogenic disturbances are not well understood. Here, we integrated niche-neutrality dynamic balancing and co-occurrence network analysis to investigate the dispersal dynamics of bacterioplankton communities along human activity intensity gradients. Results showed that the lower reaches (where intensity of human activity is high) had an increased composition of bacterioplankton communities which induced strong increases in bacterioplankton diversity. Human activity intensity changes influenced bacterioplankton community assembly via regulation of the deterministic-stochastic balance, with deterministic processes more important as human activity increases. Bacterioplankton molecular ecological network stability and robustness were higher on average in the upper reaches (where there is lower intensity of human activity), but a human activity intensity increase of about 10%/10% can reduce co-occurrence network stability of bacterioplankton communities by an average of 0.62%/0.42% in the dry and wet season, respectively. In addition, water chemistry (especially NO(3)(–)-N and Cl(–)) contributed more to explaining community assembly (especially the composition) than geographic distance and land use in the dry season, while the bacterioplankton community (especially the bacterioplankton network) was more influenced by distance (especially the length of rivers and dendritic streams) and land use (especially forest regions) in the wet season. Our research provides a new perspective of community assembly in rivers and important insights into future research on environmental monitoring and classified management of aquatic ecosystems under the influence of human activity.
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spelling pubmed-91147102022-05-19 Anthropogenic Intensity-Determined Assembly and Network Stability of Bacterioplankton Communities in the Le’an River Wu, Bobo Wang, Peng Devlin, Adam Thomas She, Yuanyang Zhao, Jun Xia, Yang Huang, Yi Chen, Lu Zhang, Hua Nie, Minghua Ding, Mingjun Front Microbiol Microbiology Bacterioplankton are essential components of riverine ecosystems. However, the mechanisms (deterministic or stochastic processes) and co-occurrence networks by which these communities respond to anthropogenic disturbances are not well understood. Here, we integrated niche-neutrality dynamic balancing and co-occurrence network analysis to investigate the dispersal dynamics of bacterioplankton communities along human activity intensity gradients. Results showed that the lower reaches (where intensity of human activity is high) had an increased composition of bacterioplankton communities which induced strong increases in bacterioplankton diversity. Human activity intensity changes influenced bacterioplankton community assembly via regulation of the deterministic-stochastic balance, with deterministic processes more important as human activity increases. Bacterioplankton molecular ecological network stability and robustness were higher on average in the upper reaches (where there is lower intensity of human activity), but a human activity intensity increase of about 10%/10% can reduce co-occurrence network stability of bacterioplankton communities by an average of 0.62%/0.42% in the dry and wet season, respectively. In addition, water chemistry (especially NO(3)(–)-N and Cl(–)) contributed more to explaining community assembly (especially the composition) than geographic distance and land use in the dry season, while the bacterioplankton community (especially the bacterioplankton network) was more influenced by distance (especially the length of rivers and dendritic streams) and land use (especially forest regions) in the wet season. Our research provides a new perspective of community assembly in rivers and important insights into future research on environmental monitoring and classified management of aquatic ecosystems under the influence of human activity. Frontiers Media S.A. 2022-05-04 /pmc/articles/PMC9114710/ /pubmed/35602050 http://dx.doi.org/10.3389/fmicb.2022.806036 Text en Copyright © 2022 Wu, Wang, Devlin, She, Zhao, Xia, Huang, Chen, Zhang, Nie and Ding. https://creativecommons.org/licenses/by/4.0/This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.
spellingShingle Microbiology
Wu, Bobo
Wang, Peng
Devlin, Adam Thomas
She, Yuanyang
Zhao, Jun
Xia, Yang
Huang, Yi
Chen, Lu
Zhang, Hua
Nie, Minghua
Ding, Mingjun
Anthropogenic Intensity-Determined Assembly and Network Stability of Bacterioplankton Communities in the Le’an River
title Anthropogenic Intensity-Determined Assembly and Network Stability of Bacterioplankton Communities in the Le’an River
title_full Anthropogenic Intensity-Determined Assembly and Network Stability of Bacterioplankton Communities in the Le’an River
title_fullStr Anthropogenic Intensity-Determined Assembly and Network Stability of Bacterioplankton Communities in the Le’an River
title_full_unstemmed Anthropogenic Intensity-Determined Assembly and Network Stability of Bacterioplankton Communities in the Le’an River
title_short Anthropogenic Intensity-Determined Assembly and Network Stability of Bacterioplankton Communities in the Le’an River
title_sort anthropogenic intensity-determined assembly and network stability of bacterioplankton communities in the le’an river
topic Microbiology
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9114710/
https://www.ncbi.nlm.nih.gov/pubmed/35602050
http://dx.doi.org/10.3389/fmicb.2022.806036
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