Fig. 1

a Realizations of Erdös–Rényi (ER) random networks with 15 nodes, and for different probabilities of connection p. For p = 0.05, and p = 0.10 the networks are composed by many components, while for p = 0.30 and p = 0.80 there is only one component spanning all the nodes. b Motifs with less than five connections. For small probabilities of connection, the motifs with few connections dominate