Fig. 3
From: Effects of population density on immunity and reproduction in bean beetles Callosobruchus maculatus

Effect of density on the covariance between immune response and gonad size in females (A, B) and males C, D). Females are represented in red and males in gray. Hatched lines and triangles represent low density and solid lines and circles represent high density. Females reared under high larval density showed a negative covariance between PO activity and ovariole size.