Results of the null models analyses.

NS: no significant difference in stategy diversity. D: strategy diversity. S: average specificity. NODF: nestedness. Q: modularity.For each network metric, and for each null model, we indicate the proportion of networks that had significantly larger or smaller values than expected by chance. A network has a significantly different value from the prediction when the empirical value falls outside of the 95% confidence interval for the value as measured on randomized networks [55].