【摘要】 采用室内试验方法研究蚜灰蝶对竹蚜的捕能力及其日捕习性,结果表明:蚜灰蝶1,2,3龄幼虫对居竹舞蚜日均捕食量依次为93.60,161.80和266.20只。1日内捕食量及捕食速度的变化规律为上午<下午<夜间,以夜间21:30—1:30间捕食量及捕食速度最大;其最适宜捕食温度25～30℃,以30℃捕食量最高。随着空间异质性强度和种内干扰增加,其捕食量和捕食速度均随之降低。更多还原

【Abstract】 Taraka hamada Druce,an aphidophagous lycaenid butterfly,is a dominant natural enemy,has a big population and strong predacious ability of aphides and plays an important role in controlling aphides in bamboo forests. The daily consumptions of 1st,2nd and 3rd instar larvae of T. hamada on aphids were 93. 60,161. 80 and 266. 20, respectively. The diurnal predatory rates of T. hamada on aphids following the below sequence,morning < afternoon < night,and the biggest predatory rate appeard in the period of between 21: 30 and 1: 30. The optimum temperature range was 25 - 30℃ . The highest consumption of T. hamada on aphids took place at 30 ℃ ,and the predatory rate declined when temperature roise to 35 ℃ . Spatial - heterogeneity and intraspecies interruption can affect the predatory behavior of T. hamada. With the increase of spatial-heterogenicity and intraspecies interruption,the consumption of T. hamada on aphids showed a decline.更多还原