Composition of the experimental assemblages and characterization of their phylogenetic diversity based on evolutionary distances.

MPDpre and MPDpost represent the average distance of the branch lengths between the pairs of species of the assemblage before and after the invasion by Lactuca, respectively; MNNDpre and MNNDpost represent the average distance of the branch lengths between each species and its nearest neighbor in the assemblage; MPDLactuca corresponds to the average branch length between Lactuca and each of the members of the assemblage, respectively; and MNNDLactuca was calculated as the branch length between Lactuca and its nearest neighbor. my: million of years.