FIG 5.
Classification of nodes to identify potential keystone OTUs within the stage-dependent gut microbial networks. Zi > 2.5 and Pi > 0.62 indicates network hubs (highly connected nodes within entire network); Zi > 2.5 and Pi ≤ 0.62 indicate module hubs (highly connected nodes within modules); Zi ≤ 2.5 and Pi > 0.62 indicate connectors (nodes that connect modules); and Zi ≤ 2.5 and Pi ≤ 0.62 indicate peripherals (nodes connected in modules with few outside connections). The potential keystone taxa generally include network hubs, module hubs, and connectors.