Abstract
Aim. To study the influence of different temperatures on larval stage on the development duration and life expectancy of Drosophila melanogaster imago. Methods. The statistical significance of the indicators was determined by one-way ANOVA followed by Tukey HSD post-hoc tests to evaluate significance of differences between groups. Results. The development duration of imagoes significantly increased by 1.7 times when the developmental temperature decreased from 27.5 to 20.0°С. The average and maximum lifespan of the flies was maximum at a temperature of 22.5°С. The lifespan of fruit flies was significantly decreased compared to control (25.0°С) at a developmental temperature of 20.0°C and above 22.5°C. Conclusions. The obtained data suggest that developmental temperature significantly affects the lifespan of the flies. It likely is a physiological optimum of the temperature of development, in which life expectancy is maximal. Probably, this is due to the fact that at optimal temperature, the Drosophila development is most complete and their viability is highest.Keywords: Drosophila melanogaster, development, lifespan, temperature, larval stage.
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