Journal article
ESTIMATING OPERATIVE TEMPERATURES FOR LARGE ECTOTHERMS FROM PHYSICAL MODELS WITH SUBSTANTIAL THERMAL INERTIA
American zoologist, Vol.38(5)
01 Nov 1998
Abstract
Operative temperatures estimated from physical models of organisms have become one of the most important tools for the analysis of thermoregulation in reptiles. In large ([is greater than] 0.5 kg) terrestrial reptiles, however, factors internal and external to the physical models can require the use of models with substantial mass, and thus, thermal inertia. The temperatures measured from these models are not instantaneous operative temperatures (sensu Bakken and Gates). Under these conditions, estimation of operative temperatures is particularly difficult if wind speed varies over the course of the day as environmental temperature change. I combine digital filter theory and an iterative estimation technique to develop a method of estimating operative temperatures from temperatures of models with measurable thermal inertia. I use the method on model temperatures of desert tortoises to show the effects of the thermal lag on estimates of operative temperatures.
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Details
- Title
- ESTIMATING OPERATIVE TEMPERATURES FOR LARGE ECTOTHERMS FROM PHYSICAL MODELS WITH SUBSTANTIAL THERMAL INERTIA
- Creators
- M.P O'Connor
- Publication Details
- American zoologist, Vol.38(5)
- Publisher
- Society for Integrative and Comparative Biology(SICB)
- Resource Type
- Journal article
- Language
- English
- Academic Unit
- Biodiversity, Earth, and Environmental Science (BEES)
- Identifiers
- 991020950673204721