Table 1.

Topological features of the microbial co-occurrence networks

Topological features	Experimental groups
	Uninfected	B. afzelii
Nodesa	626 (208)i	645 (230)i
Edgesb	474	1008
-Positives	386	688
-Negatives	88	320
Modularityc	0.908	1.476
Modulesd	56	45
Network diametere	11	11
Average degreef	1.514	3.126
Weighted degreeg	0.771	0.977
Clustering coefficienth	0.409	0.568

^aNodes represent bacterial taxa with co-occurrence correlation SparCC > or <  − 0.75

^bedges represent the number of connections/correlations

^cmodularity is the strength of division of a network into modules

^dmodules are sub-communities of bacteria that co-occur more frequently among each other than with other taxa

^enetwork diameter is the shortest path between the two most separated nodes

^faverage degree is the average number of links per node

^gweighted degree is the sum of the weight of all the edges connected to a node

^hclustering coefficient is the degree to which nodes in a network tend to form clusters

ⁱtotal nodes and nodes with at least one edge are inside brackets