Fig. 7

Attack robustness strategy to measure network resilience. Node removal was performed in agreement with their centrality, considering both node degree (a) and betweenness centrality (b) or by a random selection (c). The robustness was measured as percentage of nodes remaining in the main connected component of the network (clique). Here we plotted the results of this analysis performed on each of the three networks as a line (blue for soil, yellow for truffle, and red for soil-truffle). On the X-axis are reported the percentages of nodes removed, while on the Y-axis the percentage of the nodes remaining in the clique. AUC indicates the area under the curve calculated according to Gini’s formula