4.7 Article

The Roles of Mating, Age, and Diet in Starvation Resistance in Bactrocera oleae (Olive Fruit Fly)

Journal

INSECTS
Volume 14, Issue 11, Pages -

Publisher

MDPI
DOI: 10.3390/insects14110841

Keywords

stress; aging; food type; lifespan; pest management; sustainability; Bactrocera oleae; olive fruit fly

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This study examined the effect of mating status, age class, and diet quality on starvation resistance in the olive fruit fly. The results showed that mating status, age, and diet had significant impacts on the fly's starvation resistance, with mated adults showing less resistance, younger adults enduring longer, and the fly feeding on a restricted diet enduring longer than those on a full diet.
The olive fruit fly (Bactrocera oleae (Rossi) (Diptera: Tephritidae)), although a pest of major economic importance for the olive industry, has not been sufficiently studied with respect to the factors affecting its survival resistance to food deprivation. In the present study, we examined the effect of the interaction between mating status (virgin/mated), age class (11-20/21-30/31-40/41-50), and diet quality (protein plus sugar or only sugar) on starvation resistance in B. oleae under constant laboratory conditions. We conducted a total of 16 treatments (2 x 4 x 2 = 16) for each gender. Our results showed that starvation resistance in B. oleae did not differ significantly between females and males. The main conclusions of our study regarding mating status, age, and diet indicated that mated adults showed much less starvation resistance compared to virgins, younger adults endured longer, and the adults fed a restricted diet endured longer than those fed a full diet. A three-way interaction between mating status, diet, and age class was also identified and was the same for both genders. The interaction between mating status, age class, and diet also had a significant influence on starvation resistance in both sexes.

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