Fig. 3 in Comparative thermoregulation of sympatric endothermic and ectothermic cicadas (Homoptera: Cicadidae: Tibicen winnemanna and Tibicen chloromerus )

Fig. 3 Distribution of T. winnemanna Tb as a function of Ta for animals classified as ''inactive'' during the evening chorus (solid line, open circles, y ˆ 12.04 + 0.620x, r ˆ 0.834) and the Tbs of T. winnemanna after the species' evening activity period (dashed line, filled circles, y ˆ 15.73+0.435x, r ˆ 0.657). Although the slope of the regression for ''inactive'' animals is significantly dierent from one (t ˆ)3.20, df ˆ 12, P ˆ 0.0038), twoanimals hadbody temperatures equal to ambient temperature. Mean Tbs and the temperature gradient of ''inactive'' animals is significantly lower than ''active'' (sound­producing) animals (see text). The slope of the linear regression after activity is not significantly dierent from one, showing that T. winnemanna becomes a thermoconformer during the night (t ˆ)1.603, df ˆ 2, P ˆ 0.1251)