## Abstract Daily fluctuations in warm (30°C) and cold (20°C) temperatures have different effects on fat stores and gonad weights of male __Anolis carolinensis__ than constant warm or cold temperatures; and the effects vary depending on the phase relations of the daily thermoperiod with a daily pho
Photo-thermoperiodic effects on fat stores in the green anole,Anolis carolinensis
✍ Scribed by Ferrell, Blaine R. ;Meier, Albert H.
- Publisher
- John Wiley and Sons
- Year
- 1981
- Tongue
- English
- Weight
- 560 KB
- Volume
- 217
- Category
- Article
- ISSN
- 0022-104X
No coin nor oath required. For personal study only.
✦ Synopsis
Abstract
A circadian rhythm of thermosensitivity is set by a photoperiodic schedule (LD 12:60) in lizards at 20°C so that the coincidence of 6‐hour thermoperiods (30° C) with a thermosensitive phase is stimulatory for fattening. The thermosensitive phase reoccurs every 24 hours. Thermoperiodism involves circadian mechanisms similar to those which have been described for photo‐periodism.
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Male green anole lizards, Anolis carolinensis, were kept for 22 days on one of five temperature regimes: constant 20"C, constant 30"C, or a thermoperiod (8 h at 30°C, 16 h at 20°C) with heat onset at 0, 8, or 16 h after light onset. Groups of animals on each temperature regime were sacrificed a t on