The predicted reconciliation from eMPRess for the seabird and lice data is pasted below. The phylogenetic tree in black represents the host species and the parasite tree is mapped onto the host tree in blue. Each evolutionary event is represented by a different shape/color and is indicated on the tree.
What does this result tell you about the evolutionary history of seabirds and their louse parasites— how many evolutionary events are predicted to have occurred across the host-parasite tree? What ecological factors could have led to these events (write a hypothesis!)?