Energy Expenditure And Efficiency Of Energy Use In Rodents: Desert And Non-Desert Species

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Abstract

Feeding and the search for food are the predominant activities of most rodents. Since desert rodents inhabit regions of generally low food availability, it has been theorized that their energetic requirements would be lower and/or their efficiency to use energy for maintenance and growth would be higher than for rodents from more temperate regions. Indeed, the basal metabolic rate, average daily metabolic rate and field metabolic rate of desert rodents have been found to be lower than those of non-desert rodents. However, the ability to use energy intake for maintenance by desert rodents was calculated to be lower than that of non-desert rodents. In addition, granivores were not different from omnivores and herbivores in energy use efficiency, but herbivores were more efficient than omnivores.

Original languageEnglish
Pages (from-to)29-50
Number of pages22
JournalJournal of Basic and Clinical Physiology and Pharmacology
Volume9
Issue number1
DOIs
StatePublished - 1 Jan 1998

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