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Contribution of different bacterial dispersal sources to lakes: Population and community effects in different seasons
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. Biological Oceanography, Leibniz-Institute for Baltic Sea Research, 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: 0000-0001-8838-0914
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2017 (English)In: Environmental Microbiology, ISSN 1462-2912, E-ISSN 1462-2920, Vol. 19, no 6, p. 2391-2404Article in journal (Refereed) Published
Abstract [en]

The diversity and composition of lake bacterial communities are driven by the interplay between local contemporary environmental conditions and dispersal of cells from the surroundings, i.e. the metacommunity. Still, a conceptual understanding ofthe relative importance of the two types of factors is lacking. For instance, it is unknown which sources ofdispersal are most important and under which circumstances. Here, we investigated the seasonal variation in the importance of dispersal from different sources (mixing, precipitation, surface runoff and sediment resuspension) for lake bacterioplankton community and population dynamics. For that purpose, two small forest lakes and their dispersal sources were sampled over a period of 10 months.The influence of dispersal on communities and populations was determined by 454 sequencing of the 16S rRNA gene and Source Tracker analysis. On the community level direct effects of dispersal were questionable from all sources. Instead we found that the community of the preceding sampling occasion, representing growth of resident bacteria, was of great importance. On the population level, however, dispersal of individual taxa from the inlet could be occasionally important even under low water flow. The effect of sediment resuspension and precipitation appeared small.

Place, publisher, year, edition, pages
2017. Vol. 19, no 6, p. 2391-2404
National Category
Oceanography, Hydrology and Water Resources
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URN: urn:nbn:se:uu:diva-323624DOI: 10.1111/1462-2920.13749ISI: 000404007700024PubMedID: 28401636OAI: oai:DiVA.org:uu-323624DiVA, id: diva2:1106888
Funder
Swedish Research Council, 2009-5172Wenner-Gren FoundationsCarl Tryggers foundation Knut and Alice Wallenberg FoundationScience for Life Laboratory - a national resource center for high-throughput molecular bioscienceSwedish National Infrastructure for Computing (SNIC), b2010008Available from: 2017-06-08 Created: 2017-06-08 Last updated: 2018-01-13Bibliographically approved

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Berga, MercèSeverin, InaLogue, Jürg BrendanLindström, Eva S.

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Oceanography, Hydrology and Water Resources
Lindström, E. (2017). Supporting data. Lindström, E. S. (2017). Supporting data version 2.

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