Social Reversal of Sex‐Biased Aggression and Dominance in a Biparental Cichlid Fish (Julidochromis marlieri)

作者: Kelsey J. Wood , Victoria H. Zero , Albyn Jones , Suzy C. P. Renn

DOI: 10.1111/ETH.12227

关键词: BiologySexual dimorphismZoologyEcologyDominance (ethology)AggressionJulidochromisNestJulidochromis marlieriCichlidPaternal care

摘要: In biparental species, aggression, dominance, and parental care are typically sexually dimorphic. While behavioral dimorphism is often strongly linked to gonadal sex, the environment—either social or ecological—may also influence sex-biased behavior. cichlid fish Julidochromis marlieri, typical environment for breeding pairs consists of large females paired with smaller males. both sexes capable providing territory defense care, larger female provides majority pair, while male remains in nest guarding their offspring. We examine contributions sex relative mate size these behaviors monogamous J. marlieri pairs. Both female-larger male-larger were formed laboratory observed territorial aggression (against conspecifics heterospecifics), care. pairs, intra-pair dominance female-biased, this bias was reversed. For pairing types, presence an intruder amplified differences always attacking greater frequency than its mate. Though less robust, there evidence plasticity sex-bias some egg related inverse direction. Our study suggests that influences aspect can override on individual's The remarkable species makes exciting model could be used address relationship between proximate ultimate mechanisms plasticity.

参考文章(40)
Russell D. Fernald, Social Regulation of the Brain: Status, Sex, and Size Hormones, brain and behavior. pp. 435- 444 ,(2002) , 10.1016/B978-012532104-4/50028-7
A J Bateman, Intra-sexual selection in Drosophila. Heredity. ,vol. 2, pp. 349- 368 ,(1948) , 10.1038/HDY.1948.21
M. Richter, N. Santangelo, M. Itzkowitz, Biparental division of roles in the convict cichlid fish: influence of intruder numbers and locations Ethology Ecology & Evolution. ,vol. 17, pp. 1- 15 ,(2005) , 10.1080/08927014.2005.9522611
S. Emlen, L. Oring, Ecology, sexual selection, and the evolution of mating systems Science. ,vol. 197, pp. 215- 223 ,(1977) , 10.1126/SCIENCE.327542
George W Barlow, How do we decide that a species is sex-role reversed? The Quarterly Review of Biology. ,vol. 80, pp. 28- 35 ,(2005) , 10.1086/431022
Wallace J. Dominey, Anti-predator function of bluegill sunfish nesting colonies Nature. ,vol. 290, pp. 586- 588 ,(1981) , 10.1038/290586A0
I. P. F. Owens, I. R. Hartley, Sexual dimorphism in birds : Why are there so many different forms of dimorphism? Proceedings of The Royal Society B: Biological Sciences. ,vol. 265, pp. 397- 407 ,(1998) , 10.1098/RSPB.1998.0308