Fig. 1.

Pedigree illustrating pairs re-mating and intralineage polygyny in matriline 153. Squares refer to males, circles to females that are of interest to this example, and triangles to other offspring not of interest here. The two males shown, ‘AIDAN’ and ‘SIMPL’, can be differentiated by colour or shade. ‘SIMPL’ was involved in several re-mating events, including mating with two females (marked †) in three breeding seasons. ‘AIDAN’ sired both starred offspring; this increased their relatedness coefficient from that of aunt–half-niece (0.125) to aunt–half-niece and half-sibs (r: 0.125 + 0.250 = 0.375).