Table 2.

Model predicted activity at population-specific optimal temperature and the temperature at which the activity was maximized

Population	Distance in 2 h, m	Probability of inactive to active	Distance in 5 min, m
Åland new	1,850 (20.0°C)	0.48 (21.5°C)	77 (20.0°C)
Åland old	460 (22.6°C)	0.26 (23.2°C)	76 (25.0°C)
Saaremaa	700 (19.4°C)	0.27 (20.0°C)	71 (19.3°C)
China	514 (19.4°C)	0.38 (18.8°C)	66 (20.1°C)

If included in the model, time was set at 13:00 h and wind speed at 0 m/s. The model-predicted maximal distance of a flight bout was 36 m, maximized at 20.0°C, with no difference among populations (Table 1).