Fig. 4. Sample curves of the thorax temperature of guard bees and their examinees (dancing foragers) inside an observation hive. These examinees heated their thorax immediately after the guards had made contact with them (E1, 4 s; E2, 1 s). E1 was a forager dancing for a natural source of nectar (Stabentheiner, 2001), and E2 was a marked forager dancing for 1 mol l^-1 sucrose on a feeding place 500 m south of the hive (Stabentheiner et al., 1995). Air temperature near the bees for E1, 34.0°C; for E2, 29.7°C.

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