For clarity, only abundant OTUs (≥1% average relative abundance) are shown. Letters in parentheses following OTU names denote the taxonomy level the OTU was assigned to; p phylum, c class, o order, f family, g genus. All OTUs are provided in Table S4. Samples are named after collection month in 2016: J June; S1, S2, and S3 = three sampling times in September; N1, N2, and N3 = three sampling times in November.