Figure 3

Survival (means ± SE) of nocturnal and diurnal bees after exposure to a heat stress event (36 °C) over 5 h. (a) Comparison among groups of bees; (b) comparison between nocturnal and diurnal bees (orchid bees and stingless bees pooled together). For each figure, different letters at the end of each survival curve indicate significant (P < 0.05) mean differences based on post hoc pairwise comparisons with a Log-rank test.