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Functional and Compositional Stability of Bacterial Metacommunities in Response to Salinity Changes
Uppsala universitet, Teknisk-naturvetenskapliga vetenskapsområdet, Biologiska sektionen, Institutionen för ekologi och genetik, Limnologi. Biological Oceanography, Leibniz Institute for Baltic Sea Research Warnemünde, Germany.
Uppsala universitet, Teknisk-naturvetenskapliga vetenskapsområdet, Biologiska sektionen, Institutionen för ekologi och genetik, Limnologi.
Uppsala universitet, Teknisk-naturvetenskapliga vetenskapsområdet, Biologiska sektionen, Institutionen för ekologi och genetik, Limnologi.ORCID-id: 0000-0001-8063-7156
Uppsala universitet, Teknisk-naturvetenskapliga vetenskapsområdet, Biologiska sektionen, Institutionen för ekologi och genetik, Limnologi.ORCID-id: 0000-0002-5245-9935
2017 (engelsk)Inngår i: Frontiers in Microbiology, E-ISSN 1664-302X, Vol. 8, artikkel-id 948Artikkel i tidsskrift (Fagfellevurdert) 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.

sted, utgiver, år, opplag, sider
2017. Vol. 8, artikkel-id 948
Emneord [en]
adaptation, bacteria, community assembly, community composition, community function, disturbances, resistance, salinity
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Identifikatorer
URN: urn:nbn:se:uu:diva-323601DOI: 10.3389/fmicb.2017.00948ISI: 000402854900001PubMedID: 28642735OAI: oai:DiVA.org:uu-323601DiVA, id: diva2:1106834
Forskningsfinansiär
Swedish Research Council FormasTilgjengelig fra: 2017-06-08 Laget: 2017-06-08 Sist oppdatert: 2024-01-17bibliografisk kontrollert

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

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