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      Computer simulation of the effectiveness of male-linked translocations for the control of Anopheles albimanus Wiedemann.

      The American Journal of Tropical Medicine and Hygiene
      Animals, Anopheles, genetics, Computers, Female, Fertility, Heterozygote, Malaria, prevention & control, transmission, Male, Models, Biological, Population Density, Translocation, Genetic

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          Abstract

          A deterministic simulation model was used to establish the potential value of releasing male-linked translocation heterozygotes as a control measure for Anopheles albimanus Wiedemann. Theoretical population reductions exceeding 90% were obtained within 90 and 120 days after releases at initial ratios of 5 translocation males (TM): 1 normal male (NM) and 1 TM: 1 NM, respectively. Additional simulations emphasized the importance of the need for a method that would eliminate females from the release material. Releases containing 15% females were less effective than those with none. When a malaria subroutine was included in the model, the calculations showed that all the theoretical releases greatly reduced the number of malaria-infective females and therefore would have a profound effect on transmission of the disease. The number of malaria-infective females present was eliminated completely when only translocation males were released; however, a small number were present when the releases contained 15% females. Male-linked translocation males required longer periods of time to bring about population control than males that were completely sterile.

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