The thermoregulatory and metabolic responses to photoperiod manipulations of the Macedonian mouse (Mus macedonicus), a post-fire invader

A. Haim, A. Shabtay, Z. Arad

Research output: Contribution to journalArticlepeer-review

Abstract

1. The Macedonian mouse (Mus macedonicus), a small (15 g) mesic rodent distributed in the Mediterranean ecosystem, is a species which invades post fire habitats in the first stages of habitat recovery. 2. In order to assess the seasonal acclimatization of thermoregulatory and metabolic mechanisms, the response of several physiological variables to photoperiod manipulations under a constant T(a) were studied. 3. Our results show that mice acclimated to a short photoperiod increased their resistance to cold, while acclimation to a long photoperiod increased their resistance to high T(a)s and the effectiveness of their thermoregulatory mechanisms. Body mass increased in mice acclimated to a short photoperiod. We conclude that photoperiod is an important environmental cue for seasonal acclimatization of thermoregulatory and metabolic mechanisms in this species.

Original languageEnglish
Pages (from-to)279-286
Number of pages8
JournalJournal of Thermal Biology
Volume24
Issue number4
DOIs
StatePublished - Aug 1999

Bibliographical note

Funding Information:
This study was partly supported by a grant from the BMFT and MOSA and from common research fund, University of Haifa and Technion, whom we thank.

Keywords

  • Allometric equations
  • Body mass
  • Coexistence
  • Conductance
  • Daily rhythms
  • Feces production
  • Food consumption
  • Gross energy intake
  • Mediterranean ecosystem
  • Metabolic rates
  • Mus
  • Nonshivering thermogenesis
  • Opportunists
  • Oxygen consumption
  • Photoperiod
  • Post-tire habitat
  • Seasonal acclimatization
  • Thermoregulation

ASJC Scopus subject areas

  • Biochemistry
  • Physiology
  • Agricultural and Biological Sciences (all)
  • Developmental Biology

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