A multi-level society comprised of one-male and multi-male core units in an African colobine (Colobus angolensis ruwenzorii)
Fig 3
Graph of cumulative bifurcations at each increasing level of association indices for the dendrogram created using the average linkage method on core unit associations.
The arrow indicates where a significant change in slope occurs (AI = 0.05), indicating a new tier of association.