ケナガカブリダニ地域個体群における繁殖特性の変異

概要

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Amblyseius womersleyi is a native phytoseiid mite in Japan, and one of the promising natural enemies to control spider mites. A. womersleyi populations were collected from various region of Japan, and reproductive characteristics of the populations were compared to detect the intra-specific variation as a first step to establish high reproductive strains. Although the number of eggs produced by females copulated once did not vary among populations, the total number of eggs produced by females with supplementary copulation and the number of eggs produced daily by females copulated once and with supplementary copulation were significantly different. The mortality during immature development, the sex ratio in offspring when emerged and the prey consumption rate by gravid females also showed significant differences. The daily egg production was correlated with the total egg production, and highly correlated with the prey consumption rate. Consequently, A. womersleyi showed intra-specific variation of reproductive characteristics.
日本ダニ学会の論文
2003-05-25