Fig. 2
From: Behaviour of cranes (family Gruidae) mirrors their phylogenetic relationships
Crane phylogeny based on complete mtDNA with mapped non-homoplasious (black) and homoplasious (white) a changes of multi-state behavioural characters. Traits are presented by letter codes (for full names see Table 1). Codes for multi-state characters: 0 = absent, 1 = occurring occasionally, 2 = occurring regularly, 3 = occurring often, 4 = occurring very often. Arrows indicate direction of change in specific trait (e.g. 1 to > 2 means that trait changed in given node from occurring occasionally to occurring regularly)