Table 4.

The properties of co-occurrence networks.

Empirical network indexes	LF	MF	HF
Nodes	457	199	169
Links	820	496	243
Average degree	3.59	4.98	2.88
Average path distance	5.39	3.17	4.27
Module	37	25	27
Modularity	0.696	0.516	0.707
Positive correlations (%)	66.59	65.02	73.79
Negative correlations (%)	33.41	34.98	26.21
Peripheral species	430 (94.09%)	187 (93.97%)	161 (95.27%)
Module hubs	14 (3.06%)	2 (1.01%)	4 (2.37%)
Connector hubs	13 (2.84%)	10 (5.03%)	4 (2.37%)
Network hubs	0	0	0