PROMISCUOUS BROWN BOOBY SULA LEUCOGASTER FEMALES PERFORM REVERSE MOUNTING

摘要: Summary. Reverse mounting (RM), i.e. where the female mounts male, has been recorded in some bird species, yet potential function of this behaviour is not clear. Here, we describe frequency RM brown booby Sula leucogaster and behavioural context which it occurs. We found that 12% (4 out 33) focal pairs performed RM. Time spent at territory intra-pair courtship copulations did differ between non-RM pairs. Females were more prone to engage extra-pair than females perform RM, male partners likely copulations; however, probability laying a clutch Hence, our data suggest unlikely plays role during by strengthening pair formation or bonds. The functional mechanisms modulating promiscuous need be furthe...