Hoddle Mark S, Hoddle Christina D, Milosavljević Ivan
Department of Entomology, University of California, Riverside, CA 92521, USA.
Insects. 2021 Feb 1;12(2):126. doi: 10.3390/insects12020126.
The life time flight capabilities of an invasive palm pest, , were assessed using flight mill assays under controlled conditions in the laboratory. A total of 101 weevils were used for experiments and subjected to repeat flight assays. A total of 17 flight trials were run, of which the first 14 provided useful data prior to weevil death. Male and female weevils exhibited a strong capacity for repeat long distance flights. Flight metrics of interest were not affected by weevil sex or mating status. Cumulative lifetime flight distances for male and female averaged ~268 km and ~220 km, respectively. A maximum lifetime cumulative flight distance of ~758 km and ~806 km was recorded for one male of unknown mating status and one unmated female weevil, respectively. Dispersal data for individual flights (i.e., trials 1 through 9, 10-14 combined) and all flight trial data (i.e., flights 1-14 combined) exhibited platykurtic distributions. The results presented here may have important implications for modeling the spread of this invasive pest and for the development of monitoring and management plans.
在实验室可控条件下，通过飞行磨测定法评估了一种入侵性棕榈害虫的终生飞行能力。总共101只象鼻虫用于实验，并进行了重复飞行测定。总共进行了17次飞行试验，其中前14次在象鼻虫死亡前提供了有用数据。雄性和雌性象鼻虫都表现出很强的重复长距离飞行能力。感兴趣的飞行指标不受象鼻虫性别或交配状态的影响。雄性和雌性象鼻虫的累积终生飞行距离平均分别约为268公里和220公里。分别记录到一只交配状态未知的雄性象鼻虫和一只未交配的雌性象鼻虫的最大终生累积飞行距离约为758公里和806公里。单次飞行（即第1至9次试验、第10 - 14次试验合并）和所有飞行试验数据（即第1 - 14次飞行合并）的扩散数据呈现出低峰态分布。此处呈现的结果可能对该入侵害虫扩散的建模以及监测和管理计划的制定具有重要意义。
