Correction to: Microbial Ecology (2017) 73:75–90

https://doi.org/10.1007/s00248-016-0832-7

The original version of this article contained an error in the Molecular Analysis subsection of the Methods. In this subsection, the sequence for the primer CYA781R was specified incorrectly. The text should read: “To check the analysis, a second pyrosequencing assay was performed using a different moss shoot sample and a primer set targeted at Cyanobacteria, i.e., CYA359F (5'-GGGGAATYTTCCGCAATGGG-3') and 781R (5'-GACTACWGGGGTATCTAATCCCWTT-3').” The correct primer set was used during the analysis, so our findings are unaffected. The authors apologize for this error.