Save

PHOTOPERIODICITY IN DAILY RHYTHMS OF BODY TEMPERATURE, FOOD AND ENERGY INTAKE OF THE GOLDEN SPINY MOUSE (ACOMYS RUSSATUS)

In: Israel Journal of Ecology and Evolution
Authors:
ABRAHAM HAIM Department of Biology, University of Haifa- Oranim

Search for other papers by ABRAHAM HAIM in
Current site
Google Scholar
PubMed
Close
,
IRIS YEDIDIA Department of Neurobiochemistry, Tel Aviv University

Search for other papers by IRIS YEDIDIA in
Current site
Google Scholar
PubMed
Close
,
DAVID HAIM Department of Biology, University of Haifa- Oranim, Kiryat Tiv'on 36910, Israel

Search for other papers by DAVID HAIM in
Current site
Google Scholar
PubMed
Close
, and
NAVA ZISAPEL Department of Neurobiochemistry, Tel Aviv University

Search for other papers by NAVA ZISAPEL in
Current site
Google Scholar
PubMed
Close
Download Citation Get Permissions

Access options

Get access to the full article by using one of the access options below.

Institutional Login

Log in with Open Athens, Shibboleth, or your institutional credentials

Login via Institution

Purchase

Buy instant access (PDF download and unlimited online access):

€36.93

The golden spiny mouse, Acomys russatus, exists in the most arid and warm habitats of Israel's Rift Valley. This species is nocturnally active, but becomes diurnal when it coexists with the common spiny mouse, Acomys cahirinus. Therefore, we studied the responses of A. russatus to changes in photoperiod. Daily rhythms of body temperature (Tb), apparent digestible dry matter intake (DDMI), gross digestible energy intake (GDEI), water intake, and body mass were measured in A. russatus kept at an ambient temperature of 28 °C, and acclimated to two different photoperiod regimes: 16L:8D (long photophase; LP-mice) and 8L: 16D (long scotophase; LS-mice). In LS-mice, the duration of elevated Tb was longer than in LP-mice. DDMI, GDEI, and water intake were significantly higher in LS-mice. No differences were recorded in body mass. The results of this study show that, as in other desert rodent species, thermoregulatory mechanisms of A. russatus respond to changes in photoperiod. Therefore, such changes may be used as cues for seasonal acclimatization.

Content Metrics

All Time Past 365 days Past 30 Days
Abstract Views 2884 946 23
Full Text Views 24 1 0
PDF Views & Downloads 5 0 0