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. Author manuscript; available in PMC: 2011 Dec 1.
Published in final edited form as: J Insect Physiol. 2007 Jul 13;53(12):1250–1261. doi: 10.1016/j.jinsphys.2007.06.019

Fig. 1.

Fig. 1

Typical thermograms of bees inside the measurement chamber in different thermic states. (A) Active endothermic bee with a warm thorax (ambient temperature Ta = 14.7 °C); (B)–(D) resting bees: (B) ectothermic bee with cool head and mouthparts (Ta = 38.4 °C), (C) ectothermic bee with all body parts at the same temperature (Ta = 14.7 °C) and (D) weakly endothermic bee with slightly elevated thorax temperature (Ta = 14.6 °C). Rectangles on the right side of thermograms: peltier-driven reference radiator for infrared camera calibration (accuracy: 0.4 °C).