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Functional and Compositional Stability of Bacterial Metacommunities in Response to Salinity Changes
Uppsala University, Disciplinary Domain of Science and Technology, Biology, Department of Ecology and Genetics, Limnology. Biological Oceanography, Leibniz Institute for Baltic Sea Research Warnemünde, Germany.
Uppsala University, Disciplinary Domain of Science and Technology, Biology, Department of Ecology and Genetics, Limnology.
Uppsala University, Disciplinary Domain of Science and Technology, Biology, Department of Ecology and Genetics, Limnology.ORCID iD: 0000-0001-8063-7156
Uppsala University, Disciplinary Domain of Science and Technology, Biology, Department of Ecology and Genetics, Limnology.ORCID iD: 0000-0002-5245-9935
2017 (English)In: Frontiers in Microbiology, E-ISSN 1664-302X, Vol. 8, article id 948Article in journal (Refereed) Published
Abstract [en]

Disturbances and environmental change are important factors determining the diversity,composition, and functioning of communities. However, knowledge about how naturalbacterial communities are affected by such perturbations is still sparse. We performeda whole ecosystem manipulation experiment with freshwater rock pools where weapplied salinity disturbances of different intensities. The aim was to test how thecompositional and functional resistance and resilience of bacterial communities,alpha- and beta-diversity and the relative importance of stochastic and deterministiccommunity assembly processes changed along a disturbance intensity gradient.We found that bacterial communities were functionally resistant to all salinity levels (3, 6, and 12 psu) and compositionally resistant to a salinity increase to 3 psu andresilient to increases of 6 and 12 psu. Increasing salinities had no effect on local richnessand evenness, beta-diversity and the proportion of deterministically vs. stochasticallyassembled communities. Our results show a high functional and compositional stabilityof bacterial communities to salinity changes of different intensities both at localand regional scales, which possibly reflects long-term adaptation to environmentalconditions in the study system.

Place, publisher, year, edition, pages
2017. Vol. 8, article id 948
Keywords [en]
adaptation, bacteria, community assembly, community composition, community function, disturbances, resistance, salinity
National Category
Oceanography, Hydrology and Water Resources Microbiology
Identifiers
URN: urn:nbn:se:uu:diva-323601DOI: 10.3389/fmicb.2017.00948ISI: 000402854900001PubMedID: 28642735OAI: oai:DiVA.org:uu-323601DiVA, id: diva2:1106834
Funder
Swedish Research Council FormasAvailable from: 2017-06-08 Created: 2017-06-08 Last updated: 2024-01-17Bibliographically approved

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Berga, MercèZha, YinghuaSzékely, Anna J.Langenheder, Silke

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