Analysis of the results presented in Fig 2.

Metrics in bold are significantly different from chance expectation. S: average specificity. NODF: nestedness. Q: modularity. Co: connectance.We used a two-sample t-test to determine differences from chance expectations for networks with either less, equal, or more strategy diversity. We observe that all metrics are different from chance expectations for parasitism networks, but not for other interaction types (although our failure to report an effect is most likely due to the small sample size, as indicated by certain large confidence intervals).