Effect of Season on Thermoregulation, Metabolism and Ventilation of the Southern Brown Bandicoot Isoodon obesulus (Marsupialia: Peramelidae)

A.N. Larcombe, Philip Withers

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

Seasonal variation in various thermoregulatory, metabolic and ventilatory parameters was examined for southern brown bandicoots (Isoodon obesulus fusciventer) from a Mediterranean climate near Perth, Western Australia. There was significant seasonal variation over the four annual seasons at thermoneutrality (T-a = 30 degrees C) in body temperature, oxygen consumption, carbon dioxide production, respiratory exchange ratio, total evaporative water loss, wet and dry thermal conductance and tidal volume but not mass, ventilatory frequency, minute volume or oxygen extraction efficiency. Only carbon dioxide production and respiratory exchange ratio showed an annual pattern that was significantly related to season, with both being significantly higher in winter, presumably as a result of greater and higher quality food availability.
Original languageEnglish
Pages (from-to)175-183
JournalJournal of Experimental Zoology Part A: Ecological Genetics and Physiology
Volume309A
Issue number4
DOIs
Publication statusPublished - 2008

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