yamauchi, K. and Ishida, Y. and Hashim, R. and Heinze, J. (2007) Queen-queen competition and reproductive skew in a Cardiocondyla ant. Insectes Sociaux 54 (3), pp. 268-274.
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Queens and female sexuals of the Southeast Asian ant Cardiocondyla sp. engage in aggressive interactions. By biting and violently antennating female sexuals, queens appear to prevent them from shedding their wings and presumably also from starting to lay haploid eggs. Aggression among dealate queens apparently results in the establishment of reproductive rank orders with considerable differences in offspring production among individual nestmate queens, as visualized by the pronounced color polymorphism of this taxon. Reproductive skew ranged from complete monopolization of both worker and female sexual production to more or less equal partitioning of reproduction. Division of reproduction was associated with variation in the location of queens close to or away from the center of the brood pile, which again appeared to be caused by queen-queen antagonism.
|Institutions:||Biology, Preclinical Medicine > Institut für Zoologie|
|Keywords:||Reproductive skew; queen fighting; dominance; color polymorphism|
|Subjects:||500 Science > 570 Life sciences|
500 Science > 590 Zoological sciences
|Refereed:||Yes, this version has been refereed|
|Created at the University of Regensburg:||Unknown|
|Deposited On:||11 Feb 2009 14:37|
|Last Modified:||20 Jul 2011 21:25|