Screwworm eradication: inadvertent selection for noncompetitive ecotypes during mass rearing.
نویسندگان
چکیده
The rapid fixation of a rare allelic form of alpha-glycerol phosphate dehydrogenase is related to a loss of competitive ability in nature of factory-reared screwworm flies. The increase in frequency results from selection for survival under conditions of domestication and rapid development at high constant temperatures in the factory.
منابع مشابه
SYSTEMATICS, MORPHOLOGY AND PHYSIOLOGY Laboratory Environment Effects on the Reproduction and Mortality of Adult Screwworm (Diptera: Calliphoridae)
The New World screwworm, Cochliomyia hominivorax Coquerel, is mass reared for screwworm eradication initiatives that use the sterile insect technique. New methods for rearing have helped to reduce the cost of the eradication program. We examined the effect and interaction of three temperatures (24.5, 29.5 and 34.5oC), two diets (2% spray-dried blood plus 0.05% vitamins and corn syrup carrageena...
متن کاملLaboratory environment effects on the reproduction and mortality of adult screwworm (Diptera: Calliphoridae).
The New World screwworm, Cochliomyia hominivorax Coquerel, is mass reared for screwworm eradication initiatives that use the sterile insect technique. New methods for rearing have helped to reduce the cost of the eradication program. We examined the effect and interaction of three temperatures (24.5, 29.5 and 34.5 degrees C), two diets (2% spray-dried blood plus 0.05% vitamins and corn syrup ca...
متن کاملEvaluation of artificial larval rearing media waste as oviposition attractant for New World screwworms (Diptera: Calliphoridae).
The waste artificial larval rearing media of New World screwworms, Cochliomyia hominivorax (Coquerel) were evaluated to determine their effectiveness as oviposition attractants. Various concentrations of waste larval media resulting from rearing screwworm larvae in gel and cellulose fiber-based artificial diets tested over a 4-wk period attracted varying number of gravid screwworm flies to ovip...
متن کاملGelled diet for screwworm (Diptera: Calliphoridae) mass production.
A rearing system based on a diet gelled with Water-Lock G-400, a synthetic superabsorbent (poly(2-propenamide-co-2-propenoic acid, sodium salt)) (WL), was compared with the standard rearing system (liquid diet suspended in acetate fibers) for the mass production of screwworms, Cochliomyia hominivorax (Coquerel). The WL rearing system yielded 2% heavier pupae, 32% higher egg to pupa survival, an...
متن کاملScrewworm eradication program in Central America.
The Screwworm Eradication Program has been extremely successful in its efforts to achieve its goal of eradication of screwworms through Central America and establishment of a permanent biological barrier in the eastern half of Panama. Following eradication of screwworms from Mexico in 1991, eradication was achieved in Belize in 1992, in Guatemala in 1993, and in El Salvador in 1994. Honduras ha...
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ورودعنوان ژورنال:
- Science
دوره 193 4252 شماره
صفحات -
تاریخ انتشار 1976