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Macroecological patterns of marine bacteria on a global scale

Authors

  • Anthony S. Amend,

    Corresponding author
    1. Department of Botany, University of Hawaii at Manoa, Honolulu, HI, USA
    • Department of Ecology and Evolutionary Biology, University of California, Irvine, CA, USA
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  • Tom A. Oliver,

    1. Hawaiian Institute of Marine Biology, University of Hawaii at Manoa, Kaneohe, HI, USA
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  • Linda A. Amaral-Zettler,

    1. Josephine Bay Paul Center for Comparative Molecular Biology and Evolution, Woods Hole Marine Biological Laboratory, Woods Hole, MA, USA
    2. Department of Geological Sciences, Brown University, Providence, RI, USA
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  • Antje Boetius,

    1. Microbial Habitat Group, Max Planck Institute for Marine Microbiology, Bremen, Germany
    2. HGF MPG Joint Research Group on Deep Sea Ecology and Technology, Alfred Wegener Institute for Polar and Marine Research, Bremerhaven, Germany
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  • Jed A. Fuhrman,

    1. Department of Biological Sciences, University of Southern California, Los Angeles, CA, USA
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  • M. Claire Horner-Devine,

    1. School of Aquatic and Fishery Sciences, University of Washington, Seattle, WA, USA
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  • Susan M. Huse,

    1. Josephine Bay Paul Center for Comparative Molecular Biology and Evolution, Woods Hole Marine Biological Laboratory, Woods Hole, MA, USA
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  • David B. Mark Welch,

    1. Josephine Bay Paul Center for Comparative Molecular Biology and Evolution, Woods Hole Marine Biological Laboratory, Woods Hole, MA, USA
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  • Adam C. Martiny,

    1. Department of Ecology and Evolutionary Biology, University of California, Irvine, CA, USA
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  • Alban Ramette,

    1. Microbial Habitat Group, Max Planck Institute for Marine Microbiology, Bremen, Germany
    2. HGF MPG Joint Research Group on Deep Sea Ecology and Technology, Alfred Wegener Institute for Polar and Marine Research, Bremerhaven, Germany
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  • Lucie Zinger,

    1. Microbial Habitat Group, Max Planck Institute for Marine Microbiology, Bremen, Germany
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  • Mitchell L. Sogin,

    1. Josephine Bay Paul Center for Comparative Molecular Biology and Evolution, Woods Hole Marine Biological Laboratory, Woods Hole, MA, USA
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  • Jennifer B. H. Martiny

    1. Department of Ecology and Evolutionary Biology, University of California, Irvine, CA, USA
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Correspondence: Anthony S. Amend, Department of Botany, University of Hawaii at Manoa, 3190 Maile Way, Honolulu, HI 96822, USA.

E-mail: amend@hawaii.edu

Abstract

Aim

To test whether within-species and among-species patterns of abundance and latitudinal range in marine bacteria resemble those found for macro-organisms, and whether these patterns differ along latitudinal clines.

Location

Global pelagic marine environments.

Methods

Taxon-specific sequence abundance and location were retrieved from the open-access V6-rRNA pyrotag sequence data base VAMPS (http://vamps.mbl.edu/), which holds a massive collection of marine bacterial community data sets from the International Census of Marine Microbes sampling effort of global ocean water masses. Data were randomly subsampled to correct for spatial bias and for differences in sampling effort.

Results

We show that bacterial latitudinal ranges are narrower than expected by chance. When present in both Northern and Southern hemispheres, taxa occupy restricted ranges at similar latitudes on both sides of the equator. A significant and positive relationship exists between sequence abundance and latitudinal range, although this pattern contains a large amount of variance. Abundant taxa in the tropics and in the Northern Hemisphere generally have smaller ranges than those in the Southern Hemisphere. We show that the mean latitudinal range of bacterial taxa increases with latitude, supporting the existence of a Rapoport effect in marine bacterioplankton. Finally, we show that bacterioplankton communities contain a higher proportion of abundant taxa as they approach the poles.

Main conclusions

Macroecological patterns such as the abundance–range relationship, in general, extend to marine bacteria. However, differences in the shape of these relationships between bacteria and macro-organisms call into question whether the processes and their relative importance in shaping global marine bacteria and macro-organism distributions are the same.

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