Literaturdatenbank
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Voigt, W. G., & Johnson, C. R. (1977). Physiological control of heat exchange rates in the texas tortoise, gopherus berlandieri. Comparative Biochemistry and Physiology Part A: Molecular & Integrative Physiology, 56(4), 495–498.
Added by: Admin (25 Aug 2008 22:06:44 UTC) |
| Resource type: Journal Article BibTeX citation key: Voigt1977 View all bibliographic details  |
Categories: General Keywords: Gopherus, Gopherus berlandieri, Physiologie = physiology, Schildkröten = turtles + tortoises, Testudinidae Creators: Johnson, Voigt Collection: Comparative Biochemistry and Physiology Part A: Molecular & Integrative Physiology |
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Testudinidae Abstract 1. 1. Gopherus berlandieri heats significantly faster than it cools. 2. 2. Withdrawal of the head greatly affects the head-body temperature relationship. When withdrawn, the head heats and cools slower than the body. When extended, the head heats and cools faster than the body. This is attributed to the greater insulation afforded to the head by the body when the head is withdrawn. 3. 3. Since this species spends much of its time amongst vegetative cover, physiological augmentation of heat gain would be of adaptive significance. 4. 4. It is speculated that head temperature regulation may play a significant role in the determination of midday and evening retreat in this and other species of tortoises.
Added by: Admin |