A simple technique for estimating operative environmental temperature
1. 1.|Operative environmental temperature ( T c) is commonly measured using a taxidermic mount consisting of a hollow copper cast of an animal's body covered by the animal's integument. We compare estimates of T c made using such mounts with those derived from use of painted metal sphere t...
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Published in | Journal of thermal biology Vol. 11; no. 1; pp. 67 - 72 |
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Main Authors | , |
Format | Journal Article |
Language | English |
Published |
Oxford
Elsevier Ltd
01.06.1986
Elsevier |
Subjects | |
Online Access | Get full text |
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Summary: | 1.
1.|Operative environmental temperature (
T
c) is commonly measured using a taxidermic mount consisting of a hollow copper cast of an animal's body covered by the animal's integument. We compare estimates of
T
c made using such mounts with those derived from use of painted metal sphere thermometers, which are easier to construct and more rugged than taxidermic mounts.
2.
2.|Comparison of data for 4 bird species indicates that metal spheres may be acceptable
T
c-thermometers for analyses involving multiple measurements over moderately long time-scales (e.g. several hours).
3.
3.|In this case, positive and negative differences between operative temperature estimated from use of taxidermic mounts and painted spheres tend to compensate and the average difference is usually less than 2°C. This difference is similar to that resulting from postural variation of taxidermic mounts or variation among individual mounts in identical postures.
4.
4.|Sensitivity analysis indicates that use of painted spheres is unlikely to be an important source of error in estimates of total daily energy expenditure.
5.
5.|In contrast, use of painted sphere thermometers in analyses involving fewer measurements over shorter-time scales can produce unacceptable discrepancies from values obtained from taxidermic mounts (i.e. up to 6.3°C). |
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ISSN: | 0306-4565 1879-0992 |
DOI: | 10.1016/0306-4565(86)90020-3 |