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美洲斑潜蝇实验种群生命表的研究
引用本文:何金英,邓望喜,杨石城,汪钟信.美洲斑潜蝇实验种群生命表的研究[J].昆虫学报,1999,42(3):291-296.
作者姓名:何金英  邓望喜  杨石城  汪钟信
作者单位:1. 山东省威海市威海动植物检疫局,264200
2. 华中农业大学植保系
3. 武汉动植物检疫局,武汉,430070
基金项目:湖北省、武汉市科技重点攻关项目, 湖北省自然科学基金
摘    要:在15、20、25、30和35℃五种温度下,观察了美洲斑潜蝇Liriomyza sativae Blanchard实验种群的发育历期、存活率、产卵量、寿命等,组建了实验种群生命表,估测了种群参数。结果表明:随温度升高发育历期缩短,在试验的温度范围内,卵、幼虫、蛹的历期变化分别为7.6~2.0天,12.7~2.9天,34.3~6.8天;成虫寿命变化为17.3~6.5天。卵、幼虫、蛹的发育起点温度分别为7.5℃,9.8℃,11.5℃,10.9℃,有效积温为3.9,52.7,128.5,229.9日度。在五种温度下,卵的存活率均在84.2%以上。幼虫除在15℃时存活率为66.7%外,其它温度均在94.6%以上,蛹的存活率变化幅度最大,25℃时为80.3%,35℃时仅为10.0%。30℃时种群的内禀增长力rm最大,加倍时间最短,净生殖率最高。在20~35℃四种温度下种群的稳定年龄组配中未成熟阶段所占比例均在97%以上。

关 键 词:美洲斑潜蝇  温度  生命表  种群参数  

STUDIES ON LIFE-TABLE OF EXPERIMENTAL POPULATION OF LIRIOMYZA SATIVAE(DIPTEA:AGROMYZIDAE)
He Jinying,Deng Wangxi,Yang Shicheng,Wang Zhongxin.STUDIES ON LIFE-TABLE OF EXPERIMENTAL POPULATION OF LIRIOMYZA SATIVAE(DIPTEA:AGROMYZIDAE)[J].Acta Entomologica Sinica,1999,42(3):291-296.
Authors:He Jinying  Deng Wangxi  Yang Shicheng  Wang Zhongxin
Institution:STUDIES ON LIFE-TABLE OF EXPERIMENTAL POPULATION OF;He Jinying;(Department of Plant Protection,HuaZhong Agricultural University;
Abstract:The development duration, survival rate, fecundity and longevity of the vegetable leafminer Liriomyza sativae Blanchard were observed at 15℃, 20℃, 25℃, 30℃ and 35℃ with RH76%. The results showed that duration of its various stages was shortened as temperature rose. The development durations of egg, larva and pupa varied from 7.6 to 2.0, 12.7 to 2.9 and 34.3 to 6.8 days, respectively. The average longevity of adults ranged from 17.3 days to 6.5 days. The development temperature thresholds for egg, larva and pupa were 7.5, 9.8, 11.5 and 10.9℃ with effective accumulated temperatures of 53.9, 52.7, 128.5 and 229.9(egg to pupa) day-degree, respectively. The survival rates of eggs were more than 84.2% under all temperatures tested, and those of larvae were above 94.5% except 66.7% at 15℃. Pupal survival rate varied greatly with the maximum 80.3% at 25℃ and the minimum 10.0% at 35℃. Since no egg was laid by the adults at 15℃, reproduction-specific life tables were constructed under the other four temperatures, which indicated that the maximum innate capacity of increase (rm), the shortest doubling time (t), and the highest net reproduction rate (R0) of the experimental population at occurred 30℃. Percentages of immature stage in the stable age-distribution were more than 97% at all temperatures tested.
Keywords:Liriomyza sativae    temperature  life table  population parameter
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