CSIRO Publishing blank image blank image blank image blank imageBooksblank image blank image blank image blank imageJournalsblank image blank image blank image blank imageAbout Usblank image blank image blank image blank imageShopping Cartblank image blank image blank image You are here: Journals > Australian Journal of Zoology   
Australian Journal of Zoology
Journal Banner
  Evolutionary, molecular and comparative zoology
blank image Search
blank image blank image
blank image
  Advanced Search

Journal Home
About the Journal
Editorial Structure
Online Early
Current Issue
Just Accepted
All Issues
Special Issues
Sample Issue
For Authors
General Information
Submit Article
Author Instructions
Open Access
Awards and Prizes
For Referees
Referee Guidelines
Review an Article
Annual Referee Index
For Subscribers
Subscription Prices
Customer Service
Print Publication Dates
Library Recommendation

blue arrow e-Alerts
blank image
Subscribe to our Email Alert or RSS feeds for the latest journal papers.

red arrow Connect with us
blank image
facebook twitter logo LinkedIn


Article << Previous     |     Next >>   Contents Vol 42(2)

Activity and Resting Metabolism of Varanid Lizards Compared With Typical Lizards

KA Christian and KE Conley

Australian Journal of Zoology 42(2) 185 - 193
Published: 1994


We examined whether Australian varanids as a group are more aerobic than other lizards. The standard metabolic rate (SMR) and maximal oxygen consumption (V-O2max) were measured for four species of varanid lizards and the skink Tiliqua rugosa at 35 degrees C. These were compared to each other and to the V-O2max of the iguanid lizard Cyclura nubila by analysis of covariance with body mass as a covariate. There were no differences with respect to SMR, but the V-O2max of the lizards fell into three groups: Varanus rosenbergi, V. gouldii and V. panoptes had higher aerobic capacities than V. mertensi and Cyclura nubila, and Tiliqua rugosa had a V-O2max lower than the other species. There is no simple relationship between V-O2max and the time these lizards spend in natural activity. The summer SMRs of V. rosenbergi and T. rugosa were significantly higher than during other seasons. The V-O2max of V. rosenbergi was higher in summer than in other seasons, but T. rugosa showed no seasonal differences in V-O2max. These results indicate that the SMRs of the varanids were similar to those of other lizards, and, despite generalisations in the literature, not all varanid lizards have high aerobic capacities. Varanid lizards may be as physiologically diverse as other lizard families.

Full text doi:10.1071/ZO9940185

© CSIRO 1994

blank image
Subscriber Login

PDF (451 KB) $25
 Export Citation
Legal & Privacy | Contact Us | Help


© CSIRO 1996-2016