Nutrient-limited subarctic caves harbour more diverse and complex bacterial communities than their surface soil
Abstract 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 i...
Published in: | Environmental Microbiome |
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Online Access: | https://doi.org/10.1186/s40793-022-00435-z https://doaj.org/article/19e31c65865f445fb5d189d51182e313 |
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fttriple:oai:gotriple.eu:oai:doaj.org/article:19e31c65865f445fb5d189d51182e313 2023-05-15T17:43:34+02:00 Nutrient-limited subarctic caves harbour more diverse and complex bacterial communities than their surface soil Ana Sofia Reboleira Kasun H. Bodawatta Nynne M. R. Ravn Stein-Erik Lauritzen Rannveig Øvrevik Skoglund Michael Poulsen Anders Michelsen Knud Andreas Jønsson 2022-08-01 https://doi.org/10.1186/s40793-022-00435-z https://doaj.org/article/19e31c65865f445fb5d189d51182e313 en eng BMC doi:10.1186/s40793-022-00435-z 2524-6372 https://doaj.org/article/19e31c65865f445fb5d189d51182e313 undefined Environmental Microbiome, Vol 17, Iss 1, Pp 1-17 (2022) Subterranean ecosystems Subsurface Subarctic ecosystems Cave microbiomes Microbial co-occurrence networks envir geo Journal Article https://vocabularies.coar-repositories.org/resource_types/c_6501/ 2022 fttriple https://doi.org/10.1186/s40793-022-00435-z 2023-01-22T19:11:55Z Abstract 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 Unknown Norway Environmental Microbiome 17 1 |
institution |
Open Polar |
collection |
Unknown |
op_collection_id |
fttriple |
language |
English |
topic |
Subterranean ecosystems Subsurface Subarctic ecosystems Cave microbiomes Microbial co-occurrence networks envir geo |
spellingShingle |
Subterranean ecosystems Subsurface Subarctic ecosystems Cave microbiomes Microbial co-occurrence networks envir geo Ana Sofia Reboleira Kasun H. Bodawatta Nynne M. R. Ravn Stein-Erik Lauritzen Rannveig Øvrevik Skoglund Michael Poulsen Anders Michelsen Knud Andreas Jønsson Nutrient-limited subarctic caves harbour more diverse and complex bacterial communities than their surface soil |
topic_facet |
Subterranean ecosystems Subsurface Subarctic ecosystems Cave microbiomes Microbial co-occurrence networks envir geo |
description |
Abstract 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 |
Ana Sofia Reboleira Kasun H. Bodawatta Nynne M. R. Ravn Stein-Erik Lauritzen Rannveig Øvrevik Skoglund Michael Poulsen Anders Michelsen Knud Andreas Jønsson |
author_facet |
Ana Sofia Reboleira Kasun H. Bodawatta Nynne M. R. Ravn Stein-Erik Lauritzen Rannveig Øvrevik Skoglund Michael Poulsen Anders Michelsen Knud Andreas Jønsson |
author_sort |
Ana Sofia Reboleira |
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 |
publisher |
BMC |
publishDate |
2022 |
url |
https://doi.org/10.1186/s40793-022-00435-z https://doaj.org/article/19e31c65865f445fb5d189d51182e313 |
geographic |
Norway |
geographic_facet |
Norway |
genre |
Northern Norway Subarctic |
genre_facet |
Northern Norway Subarctic |
op_source |
Environmental Microbiome, Vol 17, Iss 1, Pp 1-17 (2022) |
op_relation |
doi:10.1186/s40793-022-00435-z 2524-6372 https://doaj.org/article/19e31c65865f445fb5d189d51182e313 |
op_rights |
undefined |
op_doi |
https://doi.org/10.1186/s40793-022-00435-z |
container_title |
Environmental Microbiome |
container_volume |
17 |
container_issue |
1 |
_version_ |
1766145673129885696 |