Effects of Temperature on the Development and Survival of Cricket Species; Acheta domesticus and Gryllus bimaculatus (Orthoptera: Gryllidae)

Temperature plays an important role in the development and survival of insects. The effects temperature on two cricket species, Acheta domesticus Gryllus bimaculatus were determined at six constant temperatures (18, 22, 26, 30, 34 380C). Parameters for stage-specific such as fecundity, weight fat content, structural body size, sex ratio, time, longevity investigated. Relative humidity, light intensity, photoperiod set 60-90 %, 500 ± 25 Lux, 12:12 L:D, respectively. results indicated that duration eggs nymphal stages significantly influenced by increased temperature. egg-to-adult developmental period declined from 200.5 days to 66.26 180C 30 °C while decreased 231.82 62.22 18 34°C. optimum estimated ranged 26˚C 34˚C. Longevity both females males was higher (female: F5, 401 = 7.5, P < 0.001; male: 6.4, 0.001) 18oC than other temperatures, with shortest recorded 20.19 days; 26.67 days) (Females: 25.56 Males: 27.49 38oC. Fecundity highest 26°C (1360 eggs/female/generation) lowest 18°C (101 domesticus. For bimaculatus, fecundity 30°C (1722 (123 eggs/female/generation). optimal crickets range Understanding impacts would provide information how climate change shapes insect ecologies enable forecasting models.