Metabolism of the Iguanid Lizard Uta Stansburiana in the Supercooled State
- 1 January 1968
- journal article
- research article
- Published by University of Chicago Press in Physiological Zoology
- Vol. 41 (1) , 113-124
- https://doi.org/10.1086/physzool.41.1.30158489
Abstract
The iguanid lizard U. stansburiana regularly enters the supercooled state at temperatures below the in vitro freezing point of its blood and other body''fluids (-0.60 [plus or minus] 0.04[degree] C). The survivorship LD50 [50% effective lethal dose] for minimum deep body temperature is -5.8[degree] C. Weight-specific O2 consumption is given for the body temperature range 5.0[degree] - -5.0[degree]C. Slight differences in minimum thermal tolerance and respiratory metabolism of samples collected during winter and summer months were not statistically significant at the 5% level. Relevant behavioral thermoregulation to this winter-active species is discussed.This publication has 3 references indexed in Scilit:
- Seasonal changes in testicular and epididymal histology and spermatogenic rate in the lizardUta stansburiana stejnegeriJournal of Morphology, 1964
- Reproductive cycles of the iguanid lizards Urosaurus ornatus and Uta stansburiana in southeastern arizonaJournal of Morphology, 1964
- HISTOLOGY AND METABOLISM OF FROZEN INTERTIDAL ANIMALSThe Biological Bulletin, 1959