While males typically compete for females, species with female biased sex ratios and/or large male investment in offspring care often exhibit reversed sex roles. Here we investigated, in a haremic fish species, the bluebanded goby, Lythrypnus dalli, the impact of male and female courtship behaviour on male reproductive success, measured as the total number of eggs in the nest and total number of developed eggs. Reproductive success was not associated with rates of male behaviour, such as parenting, approaching and courtship, but was associated with rates of female courtship. Consistent with predictions for a role-reversed reproductive strategy, only males demonstrated nest care and females exhibited high rates of courtship and intrasexual competition, such that alpha females interrupted courtship solicitations by beta females. Overall, these data are consistent with sex role reversal in L. dalli and show that the expression of male courtship behaviour does not interfere with paternal care.
Reproduction in context: field testing a laboratory model of socially controlled sex change in Lythrypnus dalli (Gilbert). —
J. Exp. Mar. Biol. Ecol.318:
KleinA.L.de AraújoA.M. (2010).
Courtship behavior of Heliconius erato phyllis (Lepidoptera, Nymphalidae) towards virgin and mated females: conflict between attraction and repulsion signals? —
MillerD.J.LeaR.N. (1972). Guide to the coastal marine fishes of California. — In: California Department of Fish and Game Fish Bulletin 157. California Department of Fish and Game Sacramento CA.
Song syntax in Bengalese finches: proximate and ultimate analyses. — In:
Advances in the study of behavior (
SlaterP.J.B.RosenblattJ.S.SnowdownC.T.RoperT.J.BrockmannH.J.NaguibM. eds). Elsevier Academic PressSan Diego, CA p.
Outline of the evolution of behavioral and nonbehavioral patterns of parental care among the vertebrates: critical characteristics of mammalian and avian parental behavior. —
Scand. J. Psychol.44:
Female, but not male, agonistic behaviour is associated with male reproductive success in stable bluebanded goby (Lythrypnus dalli) hierarchies. —
Sexually mature male goldfish release large quantities of androstenedione into the water where it functions as a pheromone. —
Gen. Comp. Endocrinol.140:
Chromatic interaction between egg pigmentation and skin chromatophores in the nuptial coloration of female two-spotted gobies. —
J. Exp. Biol.208:
Van BelleS.EstradaA.ZieglerT.E.StrierK.B. (2009).
Sexual behavior across ovarian cycles in wild black howler monkeys (Alouatta pigra): male mate guarding and female mate choice. —
Am. J. Primatol.71:
Stress and the suppression of subordinate reproduction in cooperatively breeding meerkats. —
Proc. Natl. Acad. Sci. USA103: