Figure 3. Impact of heat stress on egg hatching success every three days across the whole oviposition period.

Treatments involve different combinations of female and male treatment either at 25°C or 38°C for 4 h. 25/25: both males and females were kept at 25°C; 25/38: females were remained at 25°C but males stressed at 38°C; 38/25: females were stressed at 38°C and males were remained at 25°C; 38/38: females and males were stressed at 38°C. The asterisks below each plot indicate significant differences between treatments (*P<0.05; **P<0.01, ***P<0.001).