摘要
在25℃条件下,花绒寄甲卵的孵化、幼虫化蛹、成虫羽化在24 h中均有一定比例发生。其中,卵孵化率的54.89%发生在11:00—18:00;化蛹率高峰期发生在14:00—15:00,低谷期则发生在04:00—05:00;成虫羽化率高峰段出现在08:00—10:00,占一天中羽化比例的21.92%。而花绒寄甲不论单配制还是群养模式,成虫交配与产卵行为具有明显的昼夜节律。其中,单配制模式下,成虫交配高峰发生在23:00,群养模式下交配高峰则推迟至24:00。产卵行为单配模式下出现18:00、22:00两个高峰,而群养模式下只有18:00单个高峰。这些结果显示了花绒寄甲卵的孵化、幼虫的化蛹以及成虫交配与产卵行为具有明显昼夜节律。
At a constant temperature of 25C,the behavior of oviposition,pupation,and eclosion of D.helophoroides occurred throughout the 24h cycle.Speifically,54.89%of eggs hatched between 11:00 and 18:00.The larvae exhibited a peak of pupation at 2-3 pm and a trough at 4-5 am.The peak of adult eclosion was observed at 8-10 am,accounting for 21.92%of the daily eclosion rate.The mating and oviposition behavior of this beetle displayed a pronounced circadian rhythm,mainly occuring in the scotophase in both monogamous and mass-rearing patterms.In monogamous pattern,the mating peak of adults was observed at 23:00,while delayed at 24:00 in the mass rearing pattern.The oviposition behavior displayed two peaks at 8:00 and 22:00 in monogamous patterm,while only one peak at 18:00 in mass rearing pattern.These results demonstrate that there is a significant circadian rhythm in hatching,pupation,mating and oviposition behavior of this beetle.
作者
王欽召
钟辉辉
李超群
张江涛
曾菊平
刘兴平
Wang Qinzhao;Zhong Huihui;Li Chaoqun;Zhang Jiangtao;Zeng Juping;Liu Xingping(Key Laboratory of National Forestry and Grassland Administration on Forest Ecosystem Protection and Restoration in Poyang Lake Watershed,College of Forestry,Jiangxi Agriculture Uniwersity,Nanchang 330045,China)
基金
国家自然科学基金(31760106)
关键词
花绒寄甲
昼夜节律
Dastarcus helophoroides
circadian rhythms
