Number of generations necessary to attain eradication of an insect pest with sterile insect release method: A model study |
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Authors: | Yosiaki It? and Hitoshi Kawamoto |
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Institution: | (1) Okinawa Prefectural Agricultural Experiment Station, 903 Naha, Japan;(2) Present address: Laboratory of Applied Entomology and Nematology, Faculty of Agriculture, Nagoya University, 464 Nagoya, Japan;(3) Present address: College of Agriculture, Kyoto University, 606 Kyoto, Japan |
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Abstract: | Summary Simulation of the sterile insect release process was carried out based on a system which consisted of a logistic population
model and Poisson-binomial model for normal, sterile and combined matings. From the results, relationship between the intrinsic
rate of natural increase and the sterile vs. normal ratio necessary to attain eradication of the target pest species were
presented. The effects of weakened sperm competitiveness and the increased number of matings per female were not so strong.
On the other hand, a given rate of immigration could be a cause of failure of the eradication. A simple method to calculate
relationship between hatchability and sterile vs. normal ratio was presented. |
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Keywords: | |
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