Advertisement

Journal of Ethology

, Volume 13, Issue 2, pp 175–180 | Cite as

Effects of a short period of isolation in adulthood on the aggressive behavior of dominant and subordinate male mice

  • Sachiko Koyama
Article

Abstract

Male ddY mice were used to investigate the effect of a short period of isolation in adulthood on aggressive behavior. The relationship between the dominance status previous to isolation and the effect of isolation was investigated. The mice were kept in isolation for 3 weeks from 9 weeks of age, during which intruder tests were conducted once a week. They the went through an encounter test, in which the mice encountered dominant or subordinate mice in a neutral space.

The number of the formerly-dominant isolated mice that attacked the intruder mice decreased at first and then increased. The latency to attack also lengthened at first and then shortened. Seven former-dominants continued to show aggression throughout the intruder The number of the formerly-subordinate isolated mice that attacked the intruder mice increased linearly. But 3 former-subordinates did not show aggression through the entire experiment. After 3 weeks isolation, the number of mice that showed aggression and the amount of aggression did not differ between the former-dominants and subordinatcs. Isolation housing was concluded to differentially affect the dominant and subordinate mice during the 3 weeks of isolation. It was also concluded to differentially affect the mice of absolute dominance and relative dominance differentially. The aggressive behavior of the isolated mice appears to occur independently of site.

Keywords

Aggressive Behavior Male Mouse Animal Ecology Relative Dominance Entire Experiment 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

References

  1. Anton, A.H., R.P. Schwartz & S. Kramer 1968 Catecholamines and behavior in isolated and grouped mice.J. Psychiat. Res. 6:211–220.PubMedGoogle Scholar
  2. Berry, R.J. & F.H. Bronson 1992 Life history and bioeconomy of the house mouse.Biol. Rev. 67:519–550.PubMedGoogle Scholar
  3. Cairns, R.B. & J.S. Nakelski 1971 On fighting in mice: ontogenetic and experiential determinants.J. Comp. Physio. Psychol. 74(3): 354–364.Google Scholar
  4. Cairns, R.B. & S.D. Scholz 1973 Fighting in mice: dyadic escalation and what is learned.J. Comp. Physio. Psychol. 85(3):540–550.Google Scholar
  5. Cairns, R.B., K.E. Hood & J. Midlam 1985 On fighting in mice: is there a sensitive period for isolation effects?Anim. Behav. 33:166–180.Google Scholar
  6. Crawley, J.N., W.M. Schleidt & J.F. Contrera 1975 Does social environment decrease propensity to fight in male mice?Behav. Biol. 15: 73–83.CrossRefPubMedGoogle Scholar
  7. Goldsmith, J.F., P.F. Brain & D. Benton 1976 Effects of age at differential housing and the duration of individual housing/grouping on intermale fighting behavior and adrenocortical activity in TO strain mice.Aggressive Behav. 2:307–323.Google Scholar
  8. Kaufmann, J.H. 1983 On the definitions and functions of dominance and territoriality.Biol. Rev. 58:1–20.Google Scholar
  9. Koyama, S. 1985 The effects of social deprivation on the social behavior of mice (Mus musculus).Ann. Anim. Psychol. 35:79–90 (in Japanese with English abstract).Google Scholar
  10. Koyama, S. 1993a Isolation effect in mice (Mus musculus): (i) does it really induce aggression?J. Ehtol. 11:117–130.Google Scholar
  11. Koyama, S. 1993b Isolation effect in mice (Mus musculus): (ii) variance in aggression.J. Ethol. 11:131–140.Google Scholar
  12. Sigg, E.B., C. Day & C. Colombo 1966 Endocrine factors in isolation-induced aggressiveness in rodents.Endocrinology 78:679–684.PubMedGoogle Scholar

Copyright information

© Japan Ethological Society 1995

Authors and Affiliations

  • Sachiko Koyama
    • 1
  1. 1.TokyoJapan

Personalised recommendations