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Figure 3


Fig. 3. Ambient temperature (Ta) at the time of active arousal by bats receiving passive rewarming from exposure to a daily fluctuation in Ta when heating commenced at 06:00 h, 09:00 h or 12:00 h (individuals: filled circles and connecting lines; averages: open circles). Bats aroused at lower Ta and therefore after less passive rewarming when heating had commenced later in the day (repeated ANOVA: F2,22=14.4, P<0.001; Tukey's test: all P<0.05).