Oxygen consumption and body temperature rhythms in the golden spiny mouse: Responses to changes in day length

A. Haim, N. Zisapel

Research output: Contribution to journalArticlepeer-review


The golden spiny mouse Acomys russatus is a rock dwelling rodent which lives in extremely arid and hot habitats. In Israel it is nocturnal except in areas in which it coexists with the common spiny mouse A. cahirinus. In such places it is diurnal. The daily rhythms of body temperature (Tb) and oxygen consumption (VO2) were compared in mice acclimated to two different photoperiod regimes in the laboratory: 8L:16D (short day) and 16L:8D (long day) at a constant ambient temperature. The daily rhythms of VO2 and of Tb in A. russatus were found to differ greatly under long and short photoperiod. Both parameters peaked at lights-out under both photoperiod regimes. In short day acclimated mice the effect of transmitter implantation was also studied. VO2 values at night were lower after implanting. The results of this study show that Tb and VO2 rhythms are altered by the lighting regimes. Seasonal acclimatization of thermoregulatory mechanisms in the golden spiny mouse are partly induced by changes in photoperiodicity.

Original languageEnglish
Pages (from-to)775-778
Number of pages4
JournalPhysiology and Behavior
Issue number4
StatePublished - Oct 1995

Bibliographical note

Funding Information:
The authors wish to thank Mr. H. Kosik for the maintenance of the golden spiny mice colony. We also thank Dr. Joy Hoffman and two anonymous referees for their important comments on versions of this manuscript, This research was supported by U.S.-Israel Binational Science Foundation, Grant No. 91-00248.


  • Daily rhythms
  • Diurnal activity
  • Nocturnal activity
  • Oxygen consumption
  • Photoperiod
  • Rodents
  • Seasonality
  • Thermoregulation

ASJC Scopus subject areas

  • Experimental and Cognitive Psychology
  • Behavioral Neuroscience


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