蝗虫光电诱导滑移捕集调控行为的研究(英文)

目的:为获得蝗虫捕集装置的优化参数,给蝗虫灾害机械化捕集装置研制提供技术支持。方法:针对近光激发蝗虫趋光特性,利用蝗虫光电诱导滑移捕集行为装置,测试了机械捕集物理环境中蝗虫滑移捕集行为特征,分析了捕集光照环境及其物理特征引起的蝗虫生物摩擦行为对滑移捕集的影响,探讨了蝗虫趋光滑移捕集的增益因素及机理。结果:LED光源恒定光照突变特性,对蝗虫趋光视觉行为的调控,易化了趋光捕集实现,而通道光照及倾斜捕集环境特征,强化了其行为响应,产生了增益捕集实现的滑移弹跳碰撞捕集行为,且当通道高度及上、下层通道倾角组合为65 mm和(30°、45°)时,捕集作用效果最佳;通道内微弱光照环境,对蝗虫运动视觉的抑制性突变刺激,有效调控了生物摩擦控制下的响应调节,产生了或滑移或滑移弹跳碰撞捕集行为,且上层通道对蝗虫弹跳碰撞阻碍效应及下层通道滑移的导引作用,有助于蝗虫趋光捕集的快速实现;30 ms发光间隔频闪光照激发蝗虫趋光捕集效果较优,640 ms发光周期交变光照调控蝗虫行为反应效果较佳。结论:试验中,频闪交变及恒定捕集光照环境调控蝗虫生物摩擦控制下滑移行为响应的敏感性,制约了捕集效果,则需利用频闪交变耦合光照的激发特性,结合通道结构组合的最佳捕集参数,增加有效激发捕集通道内蝗虫滑移弹跳行为的调控性措施,来提高蝗虫的趋光捕集效果。

Study on Locust Trapping Behavior Regulation Induced by Photoelectric Light

Objective:The objective of this research was to provide theoretical foundation for manufacturing mechanical locust trapping devices induced by light.Methods:We utilized sliding locust capture device regulated by photoelectric induction and investigated locust phototactic trapping behavior to obtain the gain factor on locust sliding capture effect.Results:The sudden light characteristic of LED light source make locust trap to be entered easily and the weak illumination regulation stimulation in the upper channel on locust looming vision regulates locust response effectively, which promotes locust to generate the direct sliding behavior, the bounce impact behavior, the retention behavior; channel illumination and slanting capture environment intensify locust behavior response to the changing environment, and generate the sliding bounce impact behavior gaining locust capture effect; the obstacle effect of the upper channel on locust bounce escape behavior and the guiding function of the lower channel on the falling locust after impacting realize locust phototactic sliding capture rapidly.Conclusion:The regulation difference of different light on locust, the adjusting discrepancy of locust body balance controlled by the biological friction force with the regulation of locust on the contacting surface, the decline of locust visual function caused by the changing light environment, affect the realization of locust phototoxic trapping effect and locust phototoxic sliding gain behavior, then, according to the optimal experiment results of 65 mmchannel height and the combination of the upper channel and the lower channel with (30° , 45° ), the regulatory effect of locust phototoxic trap effect could be synergized to utilize the coupling stimulation of the flashing light with 33Hz frequency and the alternating light with 640ms luminous cycle.