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Hans Schneider1

  • 1Zoologisches Institut der Universität Bonn, Bonn, Deutschland.

Oecologia
|March 18, 2017
PubMed
Summary

The European tree frog (Hyla a. arborea) begins calling when temperatures exceed 8°C and light intensity drops below 260 Lux. An internal biological rhythm, not light, primarily controls their daily calling activity.

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