The incidence rate ratios of eggs hatchedare presented in Table 3. The Poisson regression revealed a signifi-cant association between temperature and the rate of egg hatching (2LR= 268.59, df = 7, P < 0.01).
As temperature increases, a sharpincrease in the rate of eggs hatched occurred until 22◦C (relativeto 16◦C), at which point we did not detect substantial increases in the rate of egg hatching (Table 3).