Fig. 2: Evolutionary transition to cooperative breeding and its association with body size.
From: Repeated evolution of cooperative breeding and life history traits in Lake Tanganyika cichlids
Phylogenetic generalized linear models (PGLMs) were fitted separately for female (a) and male breeders (b). The models incorporated social system (1 = cooperative breeding; 0 = non-cooperative breeding) as a binary response variable, with body size and habitat as explanatory variables. The vertical axis represents each explanatory variable, while the horizontal axis depicts the z-values of their coefficients. Bars extending to the left and right indicate 95% confidence intervals ( ± 1.96).
