Figure 4 in Effects of genetic relatedness, spatial distance, and context on intraspecific aggression in the red wood ant Formica pratensis (Hymenoptera: Formicidae)

Figure 4. Neighbor-joining tree of genetic distances of the COI gene for F. pratensis sampled from nine colonies. Numbers on the nodes show the bootstrap values (>50%) and the numbers and the abbreviations at the end of the branches denote the localities and the nest IDs, respectively.