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首页> 外文期刊>Journal of Economic Entomology >Comparison of Life Tables of Cheilomenes sexmaculata (Coleoptera: Coccinellidae) Under Laboratory and Greenhouse Conditions
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Comparison of Life Tables of Cheilomenes sexmaculata (Coleoptera: Coccinellidae) Under Laboratory and Greenhouse Conditions

机译：实验室和温室条件下虎尾草（Cheilomenes sexmaculata）的生命表比较

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摘要

The ladybird Cheilomenes sexmaculata (F.) is an important aphidophagous predator in Asia. In order to mass rear predators for biological control, it is valuable to identify the features of populations that are affected by variations in field conditions. Life tables can provide comprehensive descriptions of the development, survival, and fecundity of a population. However, there are few life table studies of C. sexmaculata. Studies of life history have been carried out in many arthropods using the traditional female age-specific life table, which takes only female individuals into consideration, while the variations in developmental rates amongst individuals are ignored. In this paper, we constructed life tables for C. sexmaculata fed on Myzus persicae (Sulzer) both at constant temperature in the laboratory and fluctuating temperature in the greenhouse, and analyzed the data using the age-stage, two-sex life table. The bootstrap technique was used to estimate the standard errors of the population parameters. The results showed that preadult C. sexmaculata developed more slowly and had lower survival and reproductive rates under greenhouse conditions, as indicated by the curves of age-stage survival rate (s(xj)), age-stage-specific fecundity (f(xj)) of the female stage, age-specific fecundity (m(x)), and age-specific maternity (l(x)m(x)). Our results also showed that the intrinsic rate of increase (r), net reproductive rate (R-0), and finite rate of increase (lambda) under laboratory and greenhouse conditions were 0.1668 d(-1) and 0.1027 d(-1), 192.1 and 53.0, and 1.1815 d(-1) and 1.1082 d(-1), respectively. Our results revealed significantly different life table parameters for C. sexmaculata under laboratory and greenhouse conditions. This information will be useful for developing a successful mass-rearing programfor C. sexmaculata for use in biological control.
机译：瓢虫Cheilomenes sexmaculata（F.）是亚洲重要的食蚜动物。为了聚集后掠食者进行生物控制，确定受田间条件变化影响的种群特征非常有价值。生命表可以提供人口的发展，生存和繁殖力的全面描述。但是，很少有关于C. sexmaculata的生命表研究。在许多节肢动物中，使用传统的按年龄段的女性寿命表进行了生活史的研究，该表仅考虑了女性个体，而个体间的发育率差异却被忽略了。在本文中，我们构建了在实验室恒温和温室温度波动的条件下，以桃蚜（Sulzer）为食的雌性C. sexmaculata的生命表，并使用年龄阶段的两性生命表对数据进行了分析。自举技术用于估计总体参数的标准误差。结果表明，成年C. sexmaculata在温室条件下发育较慢，存活率和生殖率较低，如年龄存活率（s（xj）），年龄特定生殖力（f（xj） ））的女性阶段，特定年龄的生育力（m（x））和特定年龄的产妇（l（x）m（x））。我们的结果还表明，在实验室和温室条件下，内在增长率（r），净生殖率（R-0）和有限增长率（λ）为0.1668 d（-1）和0.1027 d（-1） ，192.1和53.0，以及1.1815 d（-1）和1.1082 d（-1）。我们的结果表明，在实验室和温室条件下，六角线虫的生命表参数存在显着差异。此信息将有助于开发成功的大规模繁殖计划，以供用于生物防治的六角梭菌。

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