Fig. 4.

Patterns of kin discrimination toward recipients capable of offering varying levels of resistance. (A) In eviction attempts, dominants (males and females older than 3 y) exhibit negative kin discrimination only toward older females (n = 207 females in 29 eviction attempts in five groups). The lines show the predictions from the GLMM (±SE) for younger females (dotted line and area with light shading, 25th percentile of age = 522 d) and older females (solid line and area with dark shading, 75th percentile of age = 1,636 d). (B) Following an attempt at eviction, older females who were more related to dominants (males and females older than 3 y) were less successful in regaining entry to the group (n = 76 females in 14 eviction attempts in four groups); this pattern was reversed in younger females. The lines show the predictions from the GLMM (±SE) for younger females (dotted line and area with light shading, 25th percentile of age = 446 d) and older females (solid line and area with dark shading, 75th percentile of age = 922 d).