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作 者 ：赵惠燕,汪世泽

期 刊 ：生态学报 1990年 10卷 3期 页码：208~212

关键词：萝卜蚜；存活率；发育速度；内禀增长力；生命表；Weibull函数；

Keywords:mustard aphid, survival rate, developmcnl rate, the innate capacity of increase, life table, Weibull-function.,

摘 要 ：萝卜蚜(Lipaphis erysimi Kalt.)发育速度、内禀增长力与温度的关系符合下述模型: V(T)=K/{1+exp[—r(T—T_0)]}*{1—exp[—(T—T_1)/δ]}*{1—exp(-(Th-T)/δ]}其发育最适温度为16—23℃,世代发育起点(Tl)为3.79℃,最高临界温度(Th)为33.81℃。内禀增长力(r_m)最合适的温度是19.64℃。 组建了五种温度下萝卜蚜的生命表。用改进的Weibull模型模拟了萝卜蚜个体存活率的变化。其下降最快的位置随温度降低而后延,下降的速度随温度降低而减慢,造成寿命延长。蚜虫的繁殖活动主要集中在成虫的早期阶段。因此早期最佳育龄成虫的数量对整个种群数量变动具有重要的意义。

Abstract:The relationship between development rate, the innate capacity of increase of mustard aphid and temperature fit to the model:The optimum development temperature is from 16 to 23℃, the development zero (TL) of mustard aphid is 3.79℃. The highest threshold temperature (Th) for development is 33.81℃. The optimum temperature for the innate capacity of increase(rm) is 19.64℃.The life tables of mustard aphid at 5 levels of temperature were set up. The change in survival rale of mustard aphid individuals was sumul...

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