X + SE = 2.08 + 0.21) (Fig. 3b). The cumulative stridulatory activity
of all females in the cage also had a significant effect on male
mating attempts (GEE: x21
¼ 6:220, P = 0.013). With every additional
singing female in the cage, males performed
X + SE = 1.63 + 1.09 more mating attempts. An interaction effect
between the females’ behaviour and the total number of singers in
the cage was also present (GEE: x21
¼ 5:749, P = 0.017). With each
additional singing female in the cage, singing females received an
average of X + SE = 0.62 + 1.14 additional mating attempts compared
with silent females. Age of the female and repeated
introduction of females and males to the small mixed populations
had no detectable influence on the number of male mating
attempts. The results are illustrated in Fig. 3a