Akca Izzet, Ayvaz Tamer, Yazici Eda, Smith Cecil L, Chi Hsin
Department of Plant Protection, Faculty of Agriculture, Ondokuz Mayis University, Samsun 55139, Turkey. Agrobigen Ltd. Co., Samsun Technopark, Ondokuz Mayis University, 55200 Samsun Turkey.
Department of Plant Protection, Faculty of Agriculture, Ondokuz Mayis University, Samsun 55139, Turkey.
J Econ Entomol. 2015 Aug;108(4):1466-78. doi: 10.1093/jee/tov187. Epub 2015 Jul 2.
We collected developmental, survival, and reproduction data for Aphis fabae Scopoli (Hemiptera: Aphididae) reared on faba bean, Vicia faba L. 'Sevilla' at four constant temperatures (15, 20, 25, and 30°C), 70% relative humidity, and a photoperiod of 16:8 (L:D) h. The highest intrinsic rate of increase (r = 0.4347 d(-1)) and finite rate (λ = 1.5445 d(-1)) were observed at 25°C. The population projection based on the age-stage, two-sex life table quantitatively revealed the growth potential and stage structure of the aphid. We have included the following suggestions to aid researchers in life table studies: 1) The bootstrap method should be used to estimate the variance and SEs of developmental time, survival rate, fecundity, and population parameters. 2) The required number of bootstraps is dependent on the life table data--the higher the variation among individuals, the higher the number of bootstraps should be. In most cases, we suggest that 100,000 bootstraps should be used to obtain a stable estimate of variance and SEs. 3) Computer projection based on the age-stage, two-sex life table should be used to reveal the stage structure during population growth. 4) We used a simple equation based on the total fecundity, survival rate to adult stage, and first reproductive age to detect possible errors in life table parameters. 5) To assist readers in comprehending results, life table studies should include the cohort size, preadult survival rate, number of emerged female adults, mean fecundity, survival and fecundity curves, and population parameters.
我们收集了在四个恒定温度（15、20、25和30°C）、相对湿度70%以及光周期为16:8（光照:黑暗）小时的条件下，以蚕豆（Vicia faba L. 'Sevilla'）饲养的豆蚜（Aphis fabae Scopoli，半翅目：蚜科）的发育、存活和繁殖数据。在25°C时观察到最高的内禀增长率（r = 0.4347 d⁻¹）和周限增长率（λ = 1.5445 d⁻¹）。基于年龄 - 龄期两性生命表的种群预测定量地揭示了蚜虫的增长潜力和龄期结构。我们给出了以下建议以帮助研究人员进行生命表研究：1）应使用自助法来估计发育时间、存活率、繁殖力和种群参数的方差和标准误。2）所需的自助抽样次数取决于生命表数据——个体间的变异越大，所需的自助抽样次数就越高。在大多数情况下，我们建议使用100,000次自助抽样来获得稳定的方差和标准误估计值。3）应使用基于年龄 - 龄期两性生命表的计算机预测来揭示种群增长过程中的龄期结构。4）我们使用了一个基于总繁殖力、到成虫期的存活率和首次繁殖年龄的简单方程来检测生命表参数中可能存在的误差。5）为帮助读者理解结果，生命表研究应包括群组大小、成虫前期存活率、羽化的雌成虫数量、平均繁殖力、存活和繁殖力曲线以及种群参数。
