Bacterial metacommunity organization in a highly connected aquatic system
The spatial structure and underlying assembly mechanisms of bacterial communities have been studied widely across aquatic systems, focusing primarily on isolated sites, such as different lakes, ponds and streams. Here, our main aim was to determine the underlying mechanisms for bacterial biofilm ass...
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ftunivhelsihelda:oai:helda.helsinki.fi:10138/214437 2024-01-07T09:45:28+01:00 Bacterial metacommunity organization in a highly connected aquatic system Langenheder, Silke Wang, Jianjun Karjalainen, Satu Maaria Laamanen, Tiina M. Tolonen, Kimmo T. Vilmi, Annika Heino, Jani Department of Geosciences and Geography 2017-08-22T13:46:00Z 9 application/pdf http://hdl.handle.net/10138/214437 eng eng Oxford University Press 10.1093/femsec/fiw225 This study was funded by the European Regional Development Fund through the Kitka-MuHa project. AV was supported by the Maj and Tor Nessling Foundation, JW was supported by the Emil Aaltonen Foundation and SL by funding from the Swedish Research Council. Langenheder , S , Wang , J , Karjalainen , S M , Laamanen , T M , Tolonen , K T , Vilmi , A & Heino , J 2017 , ' Bacterial metacommunity organization in a highly connected aquatic system ' , FEMS Microbiology Ecology , vol. 93 , no. 4 , 225 . https://doi.org/10.1093/femsec/fiw225 85020433344 7d9fc026-7d85-4cdd-83e6-f4ad491307bb http://hdl.handle.net/10138/214437 000405586200001 closedAccess info:eu-repo/semantics/closedAccess metacommunities community assembly lakes biofilms bacteria alpha diversity beta diversity COMMUNITY ECOLOGY BETA-DIVERSITY BACTERIOPLANKTON COMMUNITIES STOCHASTIC-PROCESSES ASSEMBLY PROCESSES NULL MODELS PATTERNS SCALES DISSIMILARITY 1183 Plant biology microbiology virology 1172 Environmental sciences Article submittedVersion 2017 ftunivhelsihelda 2023-12-14T00:13:25Z The spatial structure and underlying assembly mechanisms of bacterial communities have been studied widely across aquatic systems, focusing primarily on isolated sites, such as different lakes, ponds and streams. Here, our main aim was to determine the underlying mechanisms for bacterial biofilm assembly within a large, highly connected lake system in Northern Finland using associative methods based on taxonomic and phylogenetic alpha-and beta-diversity and a large number of abiotic and biotic variables. Furthermore, null model approaches were used to quantify the relative importance of different community assembly processes. We found that spatial variation in bacterial communities within the lake was structured by different assembly processes, including stochasticity, species sorting and potentially even dispersal limitation. Species sorting by abiotic environmental conditions explained more of the taxonomic and particularly phylogenetic turnover in community composition compared with that by biotic variables. Finally, we observed clear differences in alpha diversity (species richness and phylogenetic diversity), which were to a stronger extent determined by abiotic compared with biotic factors, but also by dispersal effects. In summary, our study shows that the biodiversity of bacterial biofilm communities within a lake ecosystem is driven by within-habitat gradients in abiotic conditions and by stochastic and deterministic dispersal processes. Peer reviewed Article in Journal/Newspaper Northern Finland HELDA – University of Helsinki Open Repository Assembly Lakes ENVELOPE(-109.318,-109.318,59.950,59.950) FEMS Microbiology Ecology fiw225 |
institution |
Open Polar |
collection |
HELDA – University of Helsinki Open Repository |
op_collection_id |
ftunivhelsihelda |
language |
English |
topic |
metacommunities community assembly lakes biofilms bacteria alpha diversity beta diversity COMMUNITY ECOLOGY BETA-DIVERSITY BACTERIOPLANKTON COMMUNITIES STOCHASTIC-PROCESSES ASSEMBLY PROCESSES NULL MODELS PATTERNS SCALES DISSIMILARITY 1183 Plant biology microbiology virology 1172 Environmental sciences |
spellingShingle |
metacommunities community assembly lakes biofilms bacteria alpha diversity beta diversity COMMUNITY ECOLOGY BETA-DIVERSITY BACTERIOPLANKTON COMMUNITIES STOCHASTIC-PROCESSES ASSEMBLY PROCESSES NULL MODELS PATTERNS SCALES DISSIMILARITY 1183 Plant biology microbiology virology 1172 Environmental sciences Langenheder, Silke Wang, Jianjun Karjalainen, Satu Maaria Laamanen, Tiina M. Tolonen, Kimmo T. Vilmi, Annika Heino, Jani Bacterial metacommunity organization in a highly connected aquatic system |
topic_facet |
metacommunities community assembly lakes biofilms bacteria alpha diversity beta diversity COMMUNITY ECOLOGY BETA-DIVERSITY BACTERIOPLANKTON COMMUNITIES STOCHASTIC-PROCESSES ASSEMBLY PROCESSES NULL MODELS PATTERNS SCALES DISSIMILARITY 1183 Plant biology microbiology virology 1172 Environmental sciences |
description |
The spatial structure and underlying assembly mechanisms of bacterial communities have been studied widely across aquatic systems, focusing primarily on isolated sites, such as different lakes, ponds and streams. Here, our main aim was to determine the underlying mechanisms for bacterial biofilm assembly within a large, highly connected lake system in Northern Finland using associative methods based on taxonomic and phylogenetic alpha-and beta-diversity and a large number of abiotic and biotic variables. Furthermore, null model approaches were used to quantify the relative importance of different community assembly processes. We found that spatial variation in bacterial communities within the lake was structured by different assembly processes, including stochasticity, species sorting and potentially even dispersal limitation. Species sorting by abiotic environmental conditions explained more of the taxonomic and particularly phylogenetic turnover in community composition compared with that by biotic variables. Finally, we observed clear differences in alpha diversity (species richness and phylogenetic diversity), which were to a stronger extent determined by abiotic compared with biotic factors, but also by dispersal effects. In summary, our study shows that the biodiversity of bacterial biofilm communities within a lake ecosystem is driven by within-habitat gradients in abiotic conditions and by stochastic and deterministic dispersal processes. Peer reviewed |
author2 |
Department of Geosciences and Geography |
format |
Article in Journal/Newspaper |
author |
Langenheder, Silke Wang, Jianjun Karjalainen, Satu Maaria Laamanen, Tiina M. Tolonen, Kimmo T. Vilmi, Annika Heino, Jani |
author_facet |
Langenheder, Silke Wang, Jianjun Karjalainen, Satu Maaria Laamanen, Tiina M. Tolonen, Kimmo T. Vilmi, Annika Heino, Jani |
author_sort |
Langenheder, Silke |
title |
Bacterial metacommunity organization in a highly connected aquatic system |
title_short |
Bacterial metacommunity organization in a highly connected aquatic system |
title_full |
Bacterial metacommunity organization in a highly connected aquatic system |
title_fullStr |
Bacterial metacommunity organization in a highly connected aquatic system |
title_full_unstemmed |
Bacterial metacommunity organization in a highly connected aquatic system |
title_sort |
bacterial metacommunity organization in a highly connected aquatic system |
publisher |
Oxford University Press |
publishDate |
2017 |
url |
http://hdl.handle.net/10138/214437 |
long_lat |
ENVELOPE(-109.318,-109.318,59.950,59.950) |
geographic |
Assembly Lakes |
geographic_facet |
Assembly Lakes |
genre |
Northern Finland |
genre_facet |
Northern Finland |
op_relation |
10.1093/femsec/fiw225 This study was funded by the European Regional Development Fund through the Kitka-MuHa project. AV was supported by the Maj and Tor Nessling Foundation, JW was supported by the Emil Aaltonen Foundation and SL by funding from the Swedish Research Council. Langenheder , S , Wang , J , Karjalainen , S M , Laamanen , T M , Tolonen , K T , Vilmi , A & Heino , J 2017 , ' Bacterial metacommunity organization in a highly connected aquatic system ' , FEMS Microbiology Ecology , vol. 93 , no. 4 , 225 . https://doi.org/10.1093/femsec/fiw225 85020433344 7d9fc026-7d85-4cdd-83e6-f4ad491307bb http://hdl.handle.net/10138/214437 000405586200001 |
op_rights |
closedAccess info:eu-repo/semantics/closedAccess |
container_title |
FEMS Microbiology Ecology |
container_start_page |
fiw225 |
_version_ |
1787427003015626752 |