The ant, Formica japonica, is polyphagous and workers hunt other insects as foods. In this study, interspecific aggression was examined in the workers and queens. Behavior experiments demonstrated that interspecific aggressiveness was significantly higher in workers than queens. Workers showed predatory aggressive behavior towards crickets, on the other hand, queens elicited threat behavior but they didn’t attack crickets. In order to investigate neuronal mechanisms underlying regulation of aggressive motivation, the role of biogenic amine in the brain in evoking aggressive behavior was examined by measuring biogenic amine using high-performance liquid chromatography (HPLC) with electrochemical detection (ECD). No significant difference in the octopamine (OA) level was found between workers and queens, but the level of N-acetyloctopamine (NacOA) in the brain of queens was significantly higher than that of workers. This study suggests that OAergic system in the brain must involve in controlling aggressive motivation in the ants.
Baumann, A., Blenau, W., Erber, J. (2003) Biogenic amines. In: Resh, V. H., Cradè, R. T. Encyclopedia of Insects. Academic Press, San Diego, California, USA, pp. 91–94.
Erber J., '', in Encyclopedia of Insects, (2003) -.
Erber J.Encyclopedia of Insects2003)| false
Evans, P. C. (1980) Biogenic amines in the insect nervous system. Adv. Insect physiol. 422, 317–322.
Evans P. C., 'Biogenic amines in the insect nervous system' (1980) 422Adv. Insect physiol.: 317-322.
Evans P. C.Biogenic amines in the insect nervous systemAdv. Insect physiol.1980422317322)| false
Wnuk, A., Maciej, W., Godzinska, E. J. (2010) Effect of past and present behavioural specialization on brain levels of biogenic amines in workers of the red wood ant Formica polyctena. Physiol. Entomol. 36, 54–61.
Godzinska E. J., 'Effect of past and present behavioural specialization on brain levels of biogenic amines in workers of the red wood ant Formica polyctena' (2010) 36Physiol. Entomol.: 54-61.
Godzinska E. J.Effect of past and present behavioural specialization on brain levels of biogenic amines in workers of the red wood ant Formica polyctenaPhysiol. Entomol.2010365461)| false