Literaturdatenbank
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Voigt, W. G. (1975). Heating and cooling rates and their effects upon heart rate and subcutaneous temperatures in the desert tortoise, gopherus agassizii. Comparative Biochemistry and Physiology Part A: Molecular & Integrative Physiology, 52(3), 527–531.
Added by: Admin (25 Aug 2008 22:06:44 UTC) |
| Resource type: Journal Article BibTeX citation key: Voigt1975 View all bibliographic details  |
Categories: General Keywords: Gopherus, Gopherus agassizii, Physiologie = physiology, Schildkröten = turtles + tortoises, Testudinidae Creators: Voigt Collection: Comparative Biochemistry and Physiology Part A: Molecular & Integrative Physiology |
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| Abstract |
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Testudinidae Abstract 1. Heating and cooling rates of the desert tortoise, Gopherus agassizii, were measured in the field and in the laboratory. 2. Heating rates in the field were up to ten times faster than cooling rates. 3. Under controlled conditions, heating rates equalled rates of cooling. 4. Heart rates during heating were significantly faster than during cooling at any particular body temperature. 5. Subcutaneous neck temperatures did not differ from cloacal temperatures during heating or cooling, suggesting a state of continuous vasodilation. 6. Results are interpreted as suggesting that behavioral postures and activities play a greater role than physiology in the determination of thermal exchange rates of the desert tortoise.
Added by: Admin |