Selection, Refugia, and Migration: Simulation of Evolution of Dieldrin Resistance in Lucilia cuprina (Diptera: Calliphoridae)
Authors: GOSS, PETER J. E.; MCKENZIE, JOHN A.
Source: Journal of Economic Entomology, Volume 89, Number 2, April 1996 , pp. 288-301(14)
Publisher: Entomological Society of America
Abstract:We simulated changes in allele frequency at the dieldrin resistance locus observed in field populations of Lucilia cuprina (Wiedemann) by using computer models with parameters for selection, refugia, and migration. Dieldrin was introduced to control L. cuprina in Australia in 1955; resistant individuals were first observed at high frequency in 1957. The frequency of resistant individuals has declined since the chemical was withdrawn for control in 1958. Both the increase and decrease phases were simulated. Empirical measurements of fitness, migration, and the number of generations per year are available. Refugia and the number of treatments per year are the most important factors in slowing the evolution of resistance in this system. The simulation showed that, if there is strong overwintering selection against resistance, the evolution of resistance could be slowed if part of the population is deliberately left in refugia from insecticide use. The results emphasize that the predictions of general models must be interpreted in a system-specific manner.
Document Type: Research Article
Publication date: April 1, 1996
- Journal of Economic Entomology is published bimonthly in February, April, June, August, October, and December. The journal publishes articles on the economic significance of insects and is divided into the following sections: apiculture & social insects; arthropods in relation to plant disease; forum; insecticide resistance and resistance management; ecotoxicology; biological and microbial control; ecology and behavior; sampling and biostatistics; household and structural insects; medical entomology; molecular entomology; veterinary entomology; forest entomology; horticultural entomology; field and forage crops, and small grains; stored-product; commodity treatment and quarantine entomology; and plant resistance. In addition to research papers, Journal of Economic Entomology publishes Letters to the Editor, interpretive articles in a Forum section, Short Communications, Rapid Communications, and Book Reviews.
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