Thermoregulatory circadian rhythms in the pouched mouse (Saccostomus campestris)

A. Haim, G. T.H. Ellison, J. D. Skinner

Research output: Contribution to journalArticlepeer-review


1. 1. Crcadian rhythms of body temperature (Tb), oxygen consumption ( V ̇O2), and minimal thermal conductance (C) were studied in the pouched mouse, Saccostomus campestris under natural photoperiod during February at a constant ambient temperature of 28°C. 2. 2. Circadian rhythms of body temperature were also studied under natural photoperiod and laboratory temperatures (Max: 28.1°C; Min: 23.2°C) during February. 3. 3. The results of the present study suggest that changes in ambient temperature are not the main "Zeitgeber" for body temperature rhythm, and it seems that photoperiod plays a major role in this species. 4. 4. The relationship between the rhythms of Tb, V ̇O2, and C are further discussed.

Original languageEnglish
Pages (from-to)123-127
Number of pages5
JournalComparative Biochemistry and Physiology -- Part A: Physiology
Issue number1
StatePublished - 1988
Externally publishedYes

Bibliographical note

Funding Information:
Acknowledgemenrs-The authors thank Dr H. Dott and P. Apps for their comments on the manuscript. We thank Martin Haupt and Donal Skinner for collecting the specimens. We also thank the CSIR for their financial support of Dr Haim and Mr Ellison. Mr Ellison was further supported by a Cultural Exchange Bursary and, in this respect, the Department of National Education is thanked.

ASJC Scopus subject areas

  • Physiology


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