Table 1.

Network topology measures of per season networks for the V4 and V9 regions

	V4				V9
	Fall	Winter	Spring	Summer	Fall	Winter	Spring	Summer
No. nodes	1131	1123	1033	950	773	931	925	816
No. edges	13,468	12,819	9750	8589	6808	8651	9111	7470
No. clusters	1	1	1	1	1	1	1	1
Mean distance	2.71	2.70	2.84	2.80	2.75	2.78	2.73	2.74
Diameter	5	6	6	6	5	5	5	5
Mean degree	23.82	22.83	18.88	18.08	17.61	18.58	19.70	18.31
Max degree	48	42	34	32	30	32	33	32
Degree centralization	0.021	0.017	0.015	0.015	0.016	0.014	0.014	0.017
Density	0.021	0.020	0.018	0.019	0.023	0.020	0.021	0.022
Mean CC	0.373	0.372	0.356	0.359	0.365	0.361	0.368	0.367
Closeness centralization	0.110	0.090	0.077	0.074	0.085	0.076	0.083	0.077

Nodes correspond to OTUs and edges to predicted interactions between OTUs

CC  closeness centrality