Figure 5
From: Trade-off between morphological convergence and opportunistic diet behavior in fish hybrid zone
Box-plot of mouth shape in function of groups. Mouth shape is defined by the axis of the linear discriminant analysis on treatment effect. Considered groups are Cnn = Chondrostoma nasus nasus; Ctt = Chondrostoma toxostoma toxostoma; Hy = Hybrids; HR = Highly regulated river part; LR = Less regulated river part. Deformation grid: orange: allopatric mean mouth; black sympatric mean mouth. The shape differences have been exaggerated three-fold for better visualization. Arrows indicate the main deformations (corner narrow shape for hybrid zone specimens).