Effect of starvation on the cold tolerance of adult <i>Drosophila suzukii</i> (Diptera: Drosophilidae)

Abstract The spotted wing drosophila, Drosophila suzukii , is an invasive pest in Europe and North America. Access to resources may be challenging late fall, winter early spring flies suffer from food deprivation along with cold stress these periods. Whereas a plethora of studies have been performed on the overwintering capacity D. effects starvation fly's tolerance not addressed. In present study, young adults (reared at 25°C, LD 12:12 h) were deprived for various periods (0, 12, 24 36 h), after which chill coma recovery time, critical thermal minimum, as well acute chronic assessed. Additionally, body composition (body mass, water content, total lipid, glycerol, triglycerides, glucose proteins) before was analysed confirm that had detectable effects. Starved lower both lipid carbohydrate levels decreased time. Starvation slightly increased minimum affected time; however, changes gradual duration. promoted sexes. This effect appeared faster males than females. Food also led enhanced survival stress. Short-term thus associated significant alterations could alter some ecologically relevant traits related tolerance, particularly Our results suggest during short time (&lt;36 can promote (especially stress) flies. Future should address ecological significance findings occur fields many occasions seasons.