Fig. 4.

Hive temperature by location and orientation. Internal hive temperature was measured at 1 h intervals throughout transportation. A sensor outside the hive recorded external temperature. Hives facing the center aisle (In) have significantly greater variation in mean temperature and difficulty maintaining thermoregulation (F = 10.523, P = 0.023). Those facing the road (Out) have significantly less variation in mean temperature (a). While mean temperature varies by location on the trailer (b), location was not a significant predictor of loss of thermoregulation (F = 0.024, P = 0.976).