Nutrient-limited subarctic caves harbour more diverse and complex bacterial communities than their surface soil
Background: Subarctic regions are particularly vulnerable to climate change, yet little is known about nutrient availability and biodiversity of their cave ecosystems. Such knowledge is crucial for predicting the vulnerability of these ecosystems to consequences of climate change. Thus, to improve o...
Published in: | Environmental Microbiome |
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Language: | English |
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2022
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Online Access: | https://curis.ku.dk/portal/da/publications/nutrientlimited-subarctic-caves-harbour-more-diverse-and-complex-bacterial-communities-than-their-surface-soil(c1ec4bf4-0c65-4703-b0b1-e02d8db55af9).html https://doi.org/10.1186/s40793-022-00435-z https://curis.ku.dk/ws/files/316749674/s40793_022_00435_z.pdf |
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ftcopenhagenunip:oai:pure.atira.dk:publications/c1ec4bf4-0c65-4703-b0b1-e02d8db55af9 2024-06-09T07:48:34+00:00 Nutrient-limited subarctic caves harbour more diverse and complex bacterial communities than their surface soil Reboleira, Ana Sofia Bodawatta, Kasun H. Ravn, Nynne M. R. Lauritzen, Stein-Erik Skoglund, Rannveig Øvrevik Poulsen, Michael Michelsen, Anders Jønsson, Knud Andreas 2022 application/pdf https://curis.ku.dk/portal/da/publications/nutrientlimited-subarctic-caves-harbour-more-diverse-and-complex-bacterial-communities-than-their-surface-soil(c1ec4bf4-0c65-4703-b0b1-e02d8db55af9).html https://doi.org/10.1186/s40793-022-00435-z https://curis.ku.dk/ws/files/316749674/s40793_022_00435_z.pdf eng eng info:eu-repo/semantics/openAccess Reboleira , A S , Bodawatta , K H , Ravn , N M R , Lauritzen , S-E , Skoglund , R Ø , Poulsen , M , Michelsen , A & Jønsson , K A 2022 , ' Nutrient-limited subarctic caves harbour more diverse and complex bacterial communities than their surface soil ' , Environmental Microbiomes , vol. 17 , 41 . https://doi.org/10.1186/s40793-022-00435-z Cave microbiomes Microbial co-occurrence networks Subarctic ecosystems Subsurface Subterranean ecosystems article 2022 ftcopenhagenunip https://doi.org/10.1186/s40793-022-00435-z 2024-05-16T11:29:25Z Background: Subarctic regions are particularly vulnerable to climate change, yet little is known about nutrient availability and biodiversity of their cave ecosystems. Such knowledge is crucial for predicting the vulnerability of these ecosystems to consequences of climate change. Thus, to improve our understanding of life in these habitats, we characterized environmental variables, as well as bacterial and invertebrate communities of six subarctic caves in Northern Norway. Results: Only a minuscule diversity of surface-adapted invertebrates were found in these caves. However, the bacterial communities in caves were compositionally different, more diverse and more complex than the nutrient-richer surface soil. Cave soil microbiomes were less variable between caves than between surface communities in the same area, suggesting that the stable cave environments with tougher conditions drive the uniform microbial communities. We also observed only a small proportion of cave bacterial genera originating from the surface, indicating unique cave-adapted microbial communities. Increased diversity within caves may stem from higher niche specialization and levels of interdependencies for nutrient cycling among bacterial taxa in these oligotrophic environments. Conclusions: Taken together this suggest that environmental changes, e.g., faster melting of snow as a result of global warming that could alter nutrient influx, can have a detrimental impact on interactions and dependencies of these complex communities. This comparative exploration of cave and surface microbiomes also lays the foundation to further investigate the long-term environmental variables that shape the biodiversity of these vulnerable ecosystems. Article in Journal/Newspaper Northern Norway Subarctic University of Copenhagen: Research Norway Environmental Microbiome 17 1 |
institution |
Open Polar |
collection |
University of Copenhagen: Research |
op_collection_id |
ftcopenhagenunip |
language |
English |
topic |
Cave microbiomes Microbial co-occurrence networks Subarctic ecosystems Subsurface Subterranean ecosystems |
spellingShingle |
Cave microbiomes Microbial co-occurrence networks Subarctic ecosystems Subsurface Subterranean ecosystems Reboleira, Ana Sofia Bodawatta, Kasun H. Ravn, Nynne M. R. Lauritzen, Stein-Erik Skoglund, Rannveig Øvrevik Poulsen, Michael Michelsen, Anders Jønsson, Knud Andreas Nutrient-limited subarctic caves harbour more diverse and complex bacterial communities than their surface soil |
topic_facet |
Cave microbiomes Microbial co-occurrence networks Subarctic ecosystems Subsurface Subterranean ecosystems |
description |
Background: Subarctic regions are particularly vulnerable to climate change, yet little is known about nutrient availability and biodiversity of their cave ecosystems. Such knowledge is crucial for predicting the vulnerability of these ecosystems to consequences of climate change. Thus, to improve our understanding of life in these habitats, we characterized environmental variables, as well as bacterial and invertebrate communities of six subarctic caves in Northern Norway. Results: Only a minuscule diversity of surface-adapted invertebrates were found in these caves. However, the bacterial communities in caves were compositionally different, more diverse and more complex than the nutrient-richer surface soil. Cave soil microbiomes were less variable between caves than between surface communities in the same area, suggesting that the stable cave environments with tougher conditions drive the uniform microbial communities. We also observed only a small proportion of cave bacterial genera originating from the surface, indicating unique cave-adapted microbial communities. Increased diversity within caves may stem from higher niche specialization and levels of interdependencies for nutrient cycling among bacterial taxa in these oligotrophic environments. Conclusions: Taken together this suggest that environmental changes, e.g., faster melting of snow as a result of global warming that could alter nutrient influx, can have a detrimental impact on interactions and dependencies of these complex communities. This comparative exploration of cave and surface microbiomes also lays the foundation to further investigate the long-term environmental variables that shape the biodiversity of these vulnerable ecosystems. |
format |
Article in Journal/Newspaper |
author |
Reboleira, Ana Sofia Bodawatta, Kasun H. Ravn, Nynne M. R. Lauritzen, Stein-Erik Skoglund, Rannveig Øvrevik Poulsen, Michael Michelsen, Anders Jønsson, Knud Andreas |
author_facet |
Reboleira, Ana Sofia Bodawatta, Kasun H. Ravn, Nynne M. R. Lauritzen, Stein-Erik Skoglund, Rannveig Øvrevik Poulsen, Michael Michelsen, Anders Jønsson, Knud Andreas |
author_sort |
Reboleira, Ana Sofia |
title |
Nutrient-limited subarctic caves harbour more diverse and complex bacterial communities than their surface soil |
title_short |
Nutrient-limited subarctic caves harbour more diverse and complex bacterial communities than their surface soil |
title_full |
Nutrient-limited subarctic caves harbour more diverse and complex bacterial communities than their surface soil |
title_fullStr |
Nutrient-limited subarctic caves harbour more diverse and complex bacterial communities than their surface soil |
title_full_unstemmed |
Nutrient-limited subarctic caves harbour more diverse and complex bacterial communities than their surface soil |
title_sort |
nutrient-limited subarctic caves harbour more diverse and complex bacterial communities than their surface soil |
publishDate |
2022 |
url |
https://curis.ku.dk/portal/da/publications/nutrientlimited-subarctic-caves-harbour-more-diverse-and-complex-bacterial-communities-than-their-surface-soil(c1ec4bf4-0c65-4703-b0b1-e02d8db55af9).html https://doi.org/10.1186/s40793-022-00435-z https://curis.ku.dk/ws/files/316749674/s40793_022_00435_z.pdf |
geographic |
Norway |
geographic_facet |
Norway |
genre |
Northern Norway Subarctic |
genre_facet |
Northern Norway Subarctic |
op_source |
Reboleira , A S , Bodawatta , K H , Ravn , N M R , Lauritzen , S-E , Skoglund , R Ø , Poulsen , M , Michelsen , A & Jønsson , K A 2022 , ' Nutrient-limited subarctic caves harbour more diverse and complex bacterial communities than their surface soil ' , Environmental Microbiomes , vol. 17 , 41 . https://doi.org/10.1186/s40793-022-00435-z |
op_rights |
info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.1186/s40793-022-00435-z |
container_title |
Environmental Microbiome |
container_volume |
17 |
container_issue |
1 |
_version_ |
1801380333751369728 |