Fig. 3
Abundance-occupancy distributions, overlapping core taxa, and co-occurrence networks. Abundance-occupancy distributions describing log10 mean relative abundance of individual ASVs and their occupancy for bacteria in F1 (A), F2 (B), and F3 (C), and for fungi in F1 (E), F2 (F), and F3 (G). Temporal core ASVs, defined as those present in all facilities at all sampling times throughout the 2 years of study (i.e., occupancy = 1), are shown in purple for F1, pink for F2, and yellow for F3. Venn diagrams show the number of core bacterial ASVs (D) and core fungal ASVs (H) shared between the three facilities. Networks show bacterial (I) and fungal (J) microbiota with an occupancy above 0.5 in any facility throughout the two seasons. Nodes represent ASVs and are color-coded by network cluster as determined by the fast greedy algorithm. Nodes marked with a black border line are network hubs, determined as those with the highest betweenness centrality. Edges in the network are color-coded to denote positive (green) and negative (red) associations. A higher transparency in the edge color indicates lower association value