Neutral assembly of bacterial communities

Woodcock, S., Van Der Gast, C.J., Bell, T., Lunn, M., Curtis, T.P., Head, I.M. and Sloan, W. (2007) Neutral assembly of bacterial communities. FEMS Microbiology Ecology, 62(2), pp. 171-180. (doi: 10.1111/j.1574-6941.2007.00379.x)

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Two recent, independent advances in ecology have generated interest and controversy: the development of neutral community models (NCMs) and the extension of biogeographical relationships into the microbial world. Here these two advances are linked by predicting an observed microbial taxa–volume relationship using an NCM and provide the strongest evidence so far for neutral community assembly in any group of organisms, macro or micro. Previously, NCMs have only ever been fitted using species-abundance distributions of macroorganisms at a single site or at one scale and parameter values have been calibrated on a case-by-case basis. Because NCMs predict a malleable two-parameter taxa-abundance distribution, this is a weak test of neutral community assembly and, hence, of the predictive power of NCMs. Here the two parameters of an NCM are calibrated using the taxa-abundance distribution observed in a small waterborne bacterial community housed in a bark-lined tree-hole in a beech tree. Using these parameters, unchanged, the taxa-abundance distributions and taxa–volume relationship observed in 26 other beech tree communities whose sizes span three orders of magnitude could be predicted. In doing so, a simple quantitative ecological mechanism to explain observations in microbial ecology is simultaneously offered and the predictive power of NCMs is demonstrated.

Item Type:Articles
Glasgow Author(s) Enlighten ID:Sloan, Professor William and Curtis, Professor Thomas and Woodcock, Mr Stephen and Lunn, Dr Mary
Authors: Woodcock, S., Van Der Gast, C.J., Bell, T., Lunn, M., Curtis, T.P., Head, I.M., and Sloan, W.
College/School:College of Science and Engineering > School of Engineering > Infrastructure and Environment
Journal Name:FEMS Microbiology Ecology
Published Online:12 October 2007

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