Environmental rather than spatial factors structure bacterioplankton communities in shallow lakes along a > 6000km latitudinal gradient in South America
Metacommunity studies on lake bacterioplankton indicate the importance of environmental factors in structuring communities. Yet most of these studies cover relatively small spatial scales. We assessed the relative importance of environmental and spatial factors in shaping bacterioplankton communitie...
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ftunivgent:oai:archive.ugent.be:6962438 2023-06-11T04:17:24+02:00 Environmental rather than spatial factors structure bacterioplankton communities in shallow lakes along a > 6000km latitudinal gradient in South America Souffreau, Caroline Van Der Gucht, Katleen van Gremberghe, Ineke Kosten, Sarian Lacerot, Gissell Lobão, Lúcia Meirelles de Moraes Huszar, Vera Lúcia Roland, Fabio Jeppesen, Erik Vyverman, Wim De Meester, Luc 2015 application/pdf https://biblio.ugent.be/publication/6962438 http://hdl.handle.net/1854/LU-6962438 https://doi.org/10.1111/1462-2920.12692 https://biblio.ugent.be/publication/6962438/file/6963384 eng eng https://biblio.ugent.be/publication/6962438 http://hdl.handle.net/1854/LU-6962438 http://dx.doi.org/10.1111/1462-2920.12692 https://biblio.ugent.be/publication/6962438/file/6963384 No license (in copyright) info:eu-repo/semantics/restrictedAccess ENVIRONMENTAL MICROBIOLOGY ISSN: 1462-2912 Earth and Environmental Sciences RELATIVE IMPORTANCE BACTERIAL COMMUNITIES SEASONAL DYNAMICS ECOLOGICAL DATA BETA-DIVERSITY VIRAL LYSIS PATTERNS METACOMMUNITIES BIODIVERSITY BIOGEOGRAPHY journalArticle info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion 2015 ftunivgent https://doi.org/10.1111/1462-2920.12692 2023-05-10T22:29:48Z Metacommunity studies on lake bacterioplankton indicate the importance of environmental factors in structuring communities. Yet most of these studies cover relatively small spatial scales. We assessed the relative importance of environmental and spatial factors in shaping bacterioplankton communities across a >6000km latitudinal range, studying 48 shallow lowland lakes in the tropical, tropicali (isothermal subzone of the tropics) and tundra climate regions of South America using denaturing gradient gel electrophoresis. Bacterioplankton community composition (BCC) differed significantly across regions. Although a large fraction of the variation in BCC remained unexplained, the results supported a consistent significant contribution of local environmental variables and to a lesser extent spatial variables, irrespective of spatial scale. Upon correction for space, mainly biotic environmental factors significantly explained the variation in BCC. The abundance of pelagic cladocerans remained particularly significant, suggesting grazer effects on bacterioplankton communities in the studied lakes. These results confirm that bacterioplankton communities are predominantly structured by environmental factors, even over a large-scale latitudinal gradient (6026km), and stress the importance of including biotic variables in studies that aim to understand patterns in BCC. Article in Journal/Newspaper Tundra Ghent University Academic Bibliography Environmental Microbiology 17 7 2336 2351 |
institution |
Open Polar |
collection |
Ghent University Academic Bibliography |
op_collection_id |
ftunivgent |
language |
English |
topic |
Earth and Environmental Sciences RELATIVE IMPORTANCE BACTERIAL COMMUNITIES SEASONAL DYNAMICS ECOLOGICAL DATA BETA-DIVERSITY VIRAL LYSIS PATTERNS METACOMMUNITIES BIODIVERSITY BIOGEOGRAPHY |
spellingShingle |
Earth and Environmental Sciences RELATIVE IMPORTANCE BACTERIAL COMMUNITIES SEASONAL DYNAMICS ECOLOGICAL DATA BETA-DIVERSITY VIRAL LYSIS PATTERNS METACOMMUNITIES BIODIVERSITY BIOGEOGRAPHY Souffreau, Caroline Van Der Gucht, Katleen van Gremberghe, Ineke Kosten, Sarian Lacerot, Gissell Lobão, Lúcia Meirelles de Moraes Huszar, Vera Lúcia Roland, Fabio Jeppesen, Erik Vyverman, Wim De Meester, Luc Environmental rather than spatial factors structure bacterioplankton communities in shallow lakes along a > 6000km latitudinal gradient in South America |
topic_facet |
Earth and Environmental Sciences RELATIVE IMPORTANCE BACTERIAL COMMUNITIES SEASONAL DYNAMICS ECOLOGICAL DATA BETA-DIVERSITY VIRAL LYSIS PATTERNS METACOMMUNITIES BIODIVERSITY BIOGEOGRAPHY |
description |
Metacommunity studies on lake bacterioplankton indicate the importance of environmental factors in structuring communities. Yet most of these studies cover relatively small spatial scales. We assessed the relative importance of environmental and spatial factors in shaping bacterioplankton communities across a >6000km latitudinal range, studying 48 shallow lowland lakes in the tropical, tropicali (isothermal subzone of the tropics) and tundra climate regions of South America using denaturing gradient gel electrophoresis. Bacterioplankton community composition (BCC) differed significantly across regions. Although a large fraction of the variation in BCC remained unexplained, the results supported a consistent significant contribution of local environmental variables and to a lesser extent spatial variables, irrespective of spatial scale. Upon correction for space, mainly biotic environmental factors significantly explained the variation in BCC. The abundance of pelagic cladocerans remained particularly significant, suggesting grazer effects on bacterioplankton communities in the studied lakes. These results confirm that bacterioplankton communities are predominantly structured by environmental factors, even over a large-scale latitudinal gradient (6026km), and stress the importance of including biotic variables in studies that aim to understand patterns in BCC. |
format |
Article in Journal/Newspaper |
author |
Souffreau, Caroline Van Der Gucht, Katleen van Gremberghe, Ineke Kosten, Sarian Lacerot, Gissell Lobão, Lúcia Meirelles de Moraes Huszar, Vera Lúcia Roland, Fabio Jeppesen, Erik Vyverman, Wim De Meester, Luc |
author_facet |
Souffreau, Caroline Van Der Gucht, Katleen van Gremberghe, Ineke Kosten, Sarian Lacerot, Gissell Lobão, Lúcia Meirelles de Moraes Huszar, Vera Lúcia Roland, Fabio Jeppesen, Erik Vyverman, Wim De Meester, Luc |
author_sort |
Souffreau, Caroline |
title |
Environmental rather than spatial factors structure bacterioplankton communities in shallow lakes along a > 6000km latitudinal gradient in South America |
title_short |
Environmental rather than spatial factors structure bacterioplankton communities in shallow lakes along a > 6000km latitudinal gradient in South America |
title_full |
Environmental rather than spatial factors structure bacterioplankton communities in shallow lakes along a > 6000km latitudinal gradient in South America |
title_fullStr |
Environmental rather than spatial factors structure bacterioplankton communities in shallow lakes along a > 6000km latitudinal gradient in South America |
title_full_unstemmed |
Environmental rather than spatial factors structure bacterioplankton communities in shallow lakes along a > 6000km latitudinal gradient in South America |
title_sort |
environmental rather than spatial factors structure bacterioplankton communities in shallow lakes along a > 6000km latitudinal gradient in south america |
publishDate |
2015 |
url |
https://biblio.ugent.be/publication/6962438 http://hdl.handle.net/1854/LU-6962438 https://doi.org/10.1111/1462-2920.12692 https://biblio.ugent.be/publication/6962438/file/6963384 |
genre |
Tundra |
genre_facet |
Tundra |
op_source |
ENVIRONMENTAL MICROBIOLOGY ISSN: 1462-2912 |
op_relation |
https://biblio.ugent.be/publication/6962438 http://hdl.handle.net/1854/LU-6962438 http://dx.doi.org/10.1111/1462-2920.12692 https://biblio.ugent.be/publication/6962438/file/6963384 |
op_rights |
No license (in copyright) info:eu-repo/semantics/restrictedAccess |
op_doi |
https://doi.org/10.1111/1462-2920.12692 |
container_title |
Environmental Microbiology |
container_volume |
17 |
container_issue |
7 |
container_start_page |
2336 |
op_container_end_page |
2351 |
_version_ |
1768376558474493952 |