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首页> 外文期刊>Current Science: A Fortnightly Journal of Research >Evidence of a random ovipositional strategy by female fruit fly Bactrocera dorsalis (Tephritidae: Diptera) with reference to host quantum
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Evidence of a random ovipositional strategy by female fruit fly Bactrocera dorsalis (Tephritidae: Diptera) with reference to host quantum

机译：雌蝇实蝇Bactrocera dorsalis（Tephritidae：Diptera）关于宿主量子的随机产卵策略的证据

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摘要

Mango (Mangifera indica L.) is a favoured host of the fruit fly, Bactrocera dorsalis (Hendel), on which the females oviposit. Detailed laboratory studies were carried out to study the role of host biomass (= weight) on the oviposition decision of the tephritid fruit fly, B. dorsalis. The hypothesis that the biomass of mango fruit influences the decision of the mother (= gravid) fruit fly was tested on three varieties, Alphonso, Totapuri and Banganpalli, in three different but identical experiments. The results clearly showed that the number of oviposition punctures by a female fruit fly did not show significant differences among the different weight groups within a variety. The correlation coefficients between fruit weight and number of oviposition punctures were also not significant, i.e. the weight of the fruit did not influence the number of ovipositional punctures by the female fruit flies. This was true in all the three varieties. Further, the fruit weight did not influence the number of pupae that metamorphosed, number of adults that emerged and sex ratio in all the three experiments. The implications of these results on oviposition selection strategy of the female fruit fly are discussed. The study clearly indicated that after selecting a host (mango) the female fruit fly does not show non-random selection for a mango fruit with more quantum of pulp, as is expected if it were to maximize its survival and fitness.
机译：芒果（Mangifera indica L.）是果蝇Bactrocera dorsalis（Hendel）的最爱寄主，雌性在其上产卵。进行了详细的实验室研究，以研究宿主生物量（=重量）在拟南芥果蝇B. dorsalis产卵决策中的作用。在三个不同但相同的实验中，对三个品种（Alphonso，Totapuri和Banganpalli）测试了芒果果实生物量影响母亲果蝇（果蝇）决定的假说。结果清楚地表明，雌性果蝇的产卵穿刺次数在一个品种的不同体重组之间没有显着差异。果实重量与产卵穿刺次数之间的相关系数也不显着，即水果的重量不影响雌性果蝇产卵穿刺次数。这三个品种都是如此。此外，在所有三个实验中，果实重量均不影响变态up的数量，成虫的数量和性别比。讨论了这些结果对雌果蝇产卵选择策略的影响。该研究清楚地表明，在选择寄主（芒果）后，雌果蝇并未显示出对果肉量更大的芒果果实的非随机选择，这是有望使其生存和适应性最大化的预期。

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