Fig. 4: Evolutionary transition to cooperative breeding and its association with egg investment modes.
From: Repeated evolution of cooperative breeding and life history traits in Lake Tanganyika cichlids

Factors affecting the evolution of clutch size (a) and egg volume (b) among lamprologine cichlids analyzed using Bayesian phylogenetic mixed model analysis (BPMM). The density plot of the posterior distribution for each coefficient was shown. The colored area of the density plot indicates 95% CIs.