Reproduction in Lizards: Influence of Temperature on Photoperiodism in Testicular Recrudescence

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Science  30 Dec 1966:
Vol. 154, Issue 3757, pp. 1668-1670
DOI: 10.1126/science.154.3757.1668


The photoperiodic response of the testis in Anolis carolinensis is very temperature-sensitive. Body temperatures must be elevated to near preferred levels (about 32°C) during at least part of the daily light period for long daylengths to be effective in stimulating testicular recrudescence. High temperatures during the night, with cool days (20°C), may retard testicular growth more than do continuously low temperatures.