Microbial biogeography of 925 geothermal springs in New Zealand

Jean F. Power, Carlo R. Carere, Charles K. Lee, Georgia L. J. Wakerley, David W. Evans, Mathew Button, Duncan White, Melissa D. Climo, Annika M. Hinze, Xochitl C. Morgan, Ian R. McDonald, S. Craig Cary () and Matthew B. Stott ()
Additional contact information
Jean F. Power: GNS Science
Carlo R. Carere: GNS Science
Charles K. Lee: University of Waikato
Georgia L. J. Wakerley: University of Waikato
David W. Evans: GNS Science
Mathew Button: University of Waikato
Duncan White: GNS Science
Melissa D. Climo: GNS Science
Annika M. Hinze: University of Waikato
Xochitl C. Morgan: University of Otago
Ian R. McDonald: University of Waikato
S. Craig Cary: University of Waikato
Matthew B. Stott: GNS Science

Nature Communications, 2018, vol. 9, issue 1, 1-12

Abstract: Abstract Geothermal springs are model ecosystems to investigate microbial biogeography as they represent discrete, relatively homogenous habitats, are distributed across multiple geographical scales, span broad geochemical gradients, and have reduced metazoan interactions. Here, we report the largest known consolidated study of geothermal ecosystems to determine factors that influence biogeographical patterns. We measured bacterial and archaeal community composition, 46 physicochemical parameters, and metadata from 925 geothermal springs across New Zealand (13.9–100.6 °C and pH 70 °C. Further, community dissimilarity increases with geographic distance, with niche selection driving assembly at a localised scale. Surprisingly, two genera (Venenivibrio and Acidithiobacillus) dominated in both average relative abundance (11.2% and 11.1%, respectively) and prevalence (74.2% and 62.9%, respectively). These findings provide an unprecedented insight into ecological behaviour in geothermal springs, and a foundation to improve the characterisation of microbial biogeographical processes.

Date: 2018
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DOI: 10.1038/s41467-018-05020-y

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