Table 4.

Differentially abundant¹ bacterial co-abundance groups (BCG)² and ungrouped amplicon sequence variants (ASV) across days³

BCG	W 4	Taxonomic lineage 5
BCG_114 6	126	p__Firmicutes; c__Clostridia; o__Lachnospirales; f__Lachnospiraceae p__Firmicutes; c__Clostridia; o__Oscillospirales; f__Oscillospiraceae; g__NK4A214_group
BCG_124 7	253	p__Firmicutes; c__Clostridia; o__Clostridiales; f__Clostridiaceae; g__Sarcina; s__Sarcina_maxima p__Firmicutes; c__Clostridia; o__Clostridiales; f__Clostridiaceae; g__Sarcina; s__Sarcina_maxima
BCG_10 8	299	p__Firmicutes; c__Clostridia; o__Clostridiales; f__Clostridiaceae; g__Clostridium_sensu_stricto_1 p__Firmicutes; c__Clostridia; o__Clostridiales; f__Clostridiaceae; g__Clostridium_sensu_stricto_1 p__Firmicutes; c__Clostridia; o__Lachnospirales; f__Lachnospiraceae p__Firmicutes; c__Clostridia; o__Peptostreptococcales-Tissierellales; f__Anaerovoracaceae; g__Anaerovorax

¹Differential abundance was analyzed by Analysis of Composition of Microbes (ANCOM) in Qiime 2 (v.2020.8)

²The ASV were grouped into BCG using Sparce Cooccurrence Network Investigation for Compositional Data in Qiime 2 (v.2020.8)

³Samples were collected on days 0, 2, 4, and 6 of each transition (cool-season grass to warm-season grass [C–W] and warm-season grass to cool-season grass [W–C])

⁴For ANCOM, H_0(ij): mean(log[x_i/x_j) = mean(log[y_i/y_j). The W value indicates the number of times H_0(ij) is rejected for the ith species

⁵Taxonomic assignment was conducted using the most recent SILVA database (SSU 138)

⁶Differed across days in the C–W transition within the crabgrass integrated rotational grazing system (CRS)

⁷Differed across days in the W–C transition within CRS

⁸Differed across days in the W–C transition within the bermudagrass integrated rotational grazing system (BRS). There were no differentially abundant features across days in the C–W transition for BRS