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Beta diversity of marine bacteria depends on temporal scale

Hatosy, Stephen M. and Martiny, Jennifer B. H. and Sachdeva, Rohan and Steele, Joshua and Fuhrman, Jed A. and Martiny, Adam C. (2013) Beta diversity of marine bacteria depends on temporal scale. Ecology, 94 (9). pp. 1898-1904. ISSN 0012-9658. doi:10.1890/12-2125.1.

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Factors controlling the spatial distribution of bacterial diversity have been intensely studied, whereas less is known about temporal changes. To address this, we tested whether the mechanisms that underlie bacterial temporal β-diversity vary across different scales in three marine microbial communities. While seasonal turnover was detected, at least 73% of the community variation occurred at intra-seasonal temporal scales, suggesting that episodic events are important in structuring marine microbial communities. In addition, turnover at different temporal scales appeared to be driven by different factors. Intra-seasonal turnover was significantly correlated to environmental variables such as phosphate and silicate concentrations, while seasonal and interannual turnover were related to nitrate concentration and temporal distance. We observed a strong link between the magnitude of environmental variation and bacterial β-diversity in different communities. Analogous to spatial biogeography, we found different rates of community changes across temporal scales.

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Additional Information:© 2013 Ecological Society of America. Received: December 6, 2012; Revised: April 5, 2013; Accepted: May 3, 2013. Corresponding Editor. J. B. Yavitt. We thank Steven Allison and Bradford Hawkins for providing many helpful comments and the National Science Foundation’s Biological Oceanography (A. C. Martiny and J. A. Fuhrman) and Dimensions of Biodiversity (A. C. Martiny) programs for financial support.
Funding AgencyGrant Number
NSF Biological Oceanography ProgramUNSPECIFIED
NSF Dimensions of Biodiversity ProgramUNSPECIFIED
Subject Keywords:beta diversity, biodiversity, biogeography, distance decay, microbial ecology
Issue or Number:9
Record Number:CaltechAUTHORS:20131104-091655873
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Official Citation:Beta diversity of marine bacteria depends on temporal scale Stephen M. Hatosy, Jennifer B. H. Martiny, Rohan Sachdeva, Joshua Steele, Jed A. Fuhrman, and Adam C. Martiny Ecology 2013 94:9, 1898-1904
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:42213
Deposited By: Ruth Sustaita
Deposited On:04 Nov 2013 17:52
Last Modified:10 Nov 2021 16:19

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