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On the influence of social isolation on the attack readiness of xiphophorus helleri and haplochromis burtoni






Zeitschrift fuer Tierpsychologie 44(1): 25-44

On the influence of social isolation on the attack readiness of xiphophorus helleri and haplochromis burtoni

Isolation experiments involving X. helleri .male.male. can lead to differing results when achieving aggressive readiness by different methods. Adult X. helleri .male.male. deprived of social experience as they grew up differed in the frequencies of their aggressive and sexual behavior from .male.male. only briefly isolated as adult animals. The Kaspar-Hauser rearing technique was not directly comparable to isolation experiments in involving adult animals. To eliminate possible interaction between agressive and sexual readiness, isolation experiments were conducted using young immature X. helleri and H. burtoni individuals, although these showed some slight sexual behavior. While both aggressive and sexual readiness increased in X. helleri, only the former increased in H. burtoni. The frequency of pairing acts remained unchanged.


Accession: 006027928



Related references

Hannes, R-P.; Franck, D., 1983: The effect of social isolation on androgen and corticosteroid levels in cichlid fish (Haplochromis burtoni) and in swordtails (Xiphophorus helleri). The blood androgen and glucocorticoid levels of male H. burtoni and X. helleri were measured in socially isolated individuals (8 and 4 wk, respectively) and nonisolated controls. In both species isolation leads to significant reductions of mean co...

Hannes, R.P.; Franck, D., 1983: The effect of social isolation on androgen and corticosteroid levels in a cichlid fish (Haplochromis burtoni) and in swordtails (Xiphophorus helleri). The blood androgen and glucocorticoid levels of male Haplochromis burtoni and Xiphophorus helleri were measured in socially isolated individuals (8 and 4 weeks, respectively) and nonisolated controls. In both species social isolation leads to sign...

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