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Correction to: The ISME Journal (2013) 7, 468–476; doi:10.1038/ismej.2012.137; published online 22 November 2012
Since the publication of this article, the authors have noticed a misprint, which occurs within the first parentheses of the first sentence of the introduction. The text within parentheses should read: ‘(>10 g C m−2 d−1)'.
The authors would like to apologize for any inconvenience this may have caused.
