| 蝶蛹金小蜂性比,寄生密度分布及两者关系的数学模拟 |
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| 引用本文： | 胡萃 叶恭银. 蝶蛹金小蜂性比,寄生密度分布及两者关系的数学模拟[J]. 昆虫天敌, 1993, 15(1): 33-38 |
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| 作者姓名： | 胡萃 叶恭银 |
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| 作者单位： | 浙江农业大学，浙江农业大学，浙江农业大学 杭州 310029，杭州 310029，杭州 310029 |
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| 摘 要： | 本文就蝶蛹金小蜂性比分布、寄生密度分布及性比和寄生密度间的关系作了数学模拟。越冬代雌性比累计频率分布呈幂函数分布,非越冬代则呈指数函数分布。越冬或非越冬菜粉蝶蛹中寄生密度累计频率分布均呈 Weibull 函数分布。越冬代和非越冬代的雌性比与寄生密度间均呈线性关系。
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| 关 键 词： | 蝶蛹金小蜂 性比 数学模拟 寄生性 |
MATHEMATICAL SIMULATIONS ON THE SEX RATIO AND PARASITIZING DENSITY DISTRIBUTION AND THE INTERRELATIONSHIP BETWEEN THE RATIO AND DENSITY OF PTEROMALUS PUPARUM(HYMEN.:PTEROMALIDAE) |
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| Hu Cui Ye Gongyin Li Zichuan. MATHEMATICAL SIMULATIONS ON THE SEX RATIO AND PARASITIZING DENSITY DISTRIBUTION AND THE INTERRELATIONSHIP BETWEEN THE RATIO AND DENSITY OF PTEROMALUS PUPARUM(HYMEN.:PTEROMALIDAE)[J]. Natural Enemies of Insects, 1993, 15(1): 33-38 |
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| Authors: | Hu Cui Ye Gongyin Li Zichuan |
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| Abstract: | The sex ratio(female percentage)and parasitizing density distributionand the interrelationship between the ratio and density of Pteromalus puparumwere mathematically simulated.The results indicated that the sex ratio cumula-tive frequency distribution fitted to power function distribution in the overwinter-ing generation,and to exponential function distribution in the non-overwinteringgenerations.The parasitizing density cumulative frequency distributions both in theoverwintering and non-overwintering host pupae fitted to Weibull functiondistributions.There was linear relationship between the sex ratio and parasitizingdensity in the overwintering generation and non-overwintering generations. |
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| Keywords: | Ptcromalus puparum Sex ratio Parasitizing density Mathematical simulation |
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