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J Econ Entomol

Title:		Effects of the olfactory environment and nutrition on the ability of male Mediterranean fruit flies to endure starvation
Author(s):		Levy K; Shelly TE; Yuval B;
Address:		"Department of Entomology, Hebrew University of Jerusalem, Rehovot, Israel 76100"
Journal Title:		J Econ Entomol
Year:		2005
Volume:		98
Issue:		1
Page Number:		61 - 65
DOI:		10.1603/0022-0493-98.1.61
ISSN/ISBN:		0022-0493 (Print) 0022-0493 (Linking)
Abstract:		"The Mediterranean fruit fly, Ceratitis capitata (Wiedemann) (Diptera: Tephritidae), is targeted for control using the sterile insect technique (SIT). For this technique to succeed, released males must be able to compete with wild males for copulations. Male success is mediated by survival in the field often in adverse conditions. Manipulation of the postteneral environment experienced by sterile males before release has been shown to affect male sexual success and survival. The objectives of this study were to determine how various diets, combined with exposure to volatiles containing alpha-copaene, affect the ability of male Mediterranean fruit flies (from a wild and two unisexual strains) to withstand starvation. Accordingly, we maintained males on one of eight regimes combing a diet of either sugar, sugar and protein, a protein pulse or apricot, with or without the aroma of the sexual stimulant alpha-copaene. The apricot diet was associated with the lowest ability to resist starvation. The sugar-only diet was associated with the highest ability to resist starvation by sterile males. Exposure to alpha-copaene, in combination with the apricot diet, had a significant negative effect on the ability of males (from all strains) to resist starvation relative to other regimes examined. We conclude that the holding regimes that elicit the best sexual performance from males paradoxically also hasten their demise, probably by initiating an irreversible metabolic cascade. The search for the optimal prerelease regime continues"
Keywords:		Animal Nutritional Physiological Phenomena Animals Ceratitis capitata/*physiology *Diet Environment *Food Deprivation Male *Odorants Sex Attractants Smell;
Notes:		"MedlineLevy, Karmit Shelly, Todd E Yuval, Boaz eng Research Support, Non-U.S. Gov't Research Support, U.S. Gov't, Non-P.H.S. England 2005/03/16 J Econ Entomol. 2005 Feb; 98(1):61-5. doi: 10.1603/0022-0493-98.1.61"