海氏桨角蚜小蜂的多次交配行为及繁殖效益

doi:10.16409/j.cnki.2095-039x.2020.05.004

摘要/Abstract

摘要： 海氏桨角蚜小蜂Eretmocerus hayati是烟粉虱Bemisia tabaci的优势寄生蜂，了解寄生蜂的交配行为有利于完善其规模化繁殖技术。通过对海氏桨角蚜小蜂的首次交配及再次交配、配偶选择等行为学观察，以及多次交配对雌蜂繁殖量影响的生物学试验，明确了该蜂的交配过程包括求偶、交尾前期、交尾和交尾后期；雌蜂在整个生活史中未观察到再次交配；雄蜂可在首次交配后迅速进行再次交配，首次交配后1 h内的再次交配率为83.3%，62.5%的个体可在2 h内完成第3次交配，再次交配的行为持续时间显著低于首次交配；雄蜂的交配次数对自身寿命及其配偶的寄生量无显著影响；此外，在配偶选择中，处女蜂倾向于接受有交配经历的雄蜂，多头雄蜂间存在竞争行为进而干扰交配成功率。

关键词: 烟粉虱, 海氏桨角蚜小蜂, 多次交配, 性选择

Abstract: Eretmocerus hayati is a dominant parasitoid of Bemisia tabaci. Understanding the mating behavior of the parasitoid is conducive to improving its large-scale reproduction technology. The mating process, number of multiple matings and mate selection of the wasp, as well as the influence of male multiple mating on female's reproduction, were observed. The mating process of E. hayati consisted of courtship, precopulatory, copulation, and postcopulatory behaviors. In females, we did not observe re-mating behavior throughout their whole life history, while males could quickly re-mate after the first mating, with a re-mating rate of 83.3% within 1 hour after the first mating and 62.5% of males completing the 3^rd mating within 2 hours after the first mating. The duration of re-mating was significantly shorter than the first mating. The male multiple mating had no negative effect on male life span and parasitism by the paired female. In addition, in mate selection, virgin female wasps tended to accept males with mating experience, and competing behaviors were observed among males, which resulted in mating failure.

Key words: Bemisia tabaci, Eretmocerus hayati, multiple matings, sexual selection

中图分类号:

S476.3

满孝明, KHANZADA Shagufta Rani, 张桂芬, 刘万学, 万方浩, 杨念婉. 海氏桨角蚜小蜂的多次交配行为及繁殖效益[J]. 中国生物防治学报, 2020, 36(6): 874-879.

MAN Xiaoming, KHANZADA Shagufta Rani, ZHANG Guifen, LIU Wanxue, WAN Fanghao, YANG Nianwan. Multiple Mating Behavior in Eretmocerus hayati and Its Reproductive Benefits[J]. Chinese Journal of Biological Control, 2020, 36(6): 874-879.

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