光振耦合对蝗虫趋光响应驱动增效效应的影响及测定

依据蝗虫趋光机理和振动惊吓蝗虫反应特性,利用LED光源、振动激发设备和蝗虫行为试验装置,进行了蝗虫对光振耦合和光谱光照趋光响应的对比测定。结果显示:光谱光照和振动的耦合效应对蝗虫趋光产生了推拉驱动激发效果,振动刺激驱动增效了蝗虫趋光响应的程度,并增益了蝗虫趋光响应的实现,而光谱光照决定了蝗虫的趋光诱导效果;光谱光照和振动刺激蝗虫不同感受器引发蝗虫神经生理敏感反应的差别,导致振动频率50Hz、振动400ms而间歇停止1s、较高激振力的循环振动模式与紫光耦合激发蝗虫趋光响应强度和增效程度较佳;光振耦合效应激发蝗虫,会导致蝗虫产生有利于趋光的生理效应,且光振能量越强,对蝗虫趋光生理反应的初始激发效应也越强;蝗虫对光振刺激敏感反应点的差异性、光振传播的衰减性、蝗虫对光振刺激的敏感选择调谐性等,影响光振耦合对蝗虫趋光激发的增效程度。因此,在蝗虫趋光有效的光照范围内,通过利用振动惊吓蝗虫反应的强度门限值与振动激发蝗虫趋光最佳的调控模式的组合,来实施逐步移动逼近式的调控性振动激发,可满足振动激发蝗虫趋光增效的技术需求,进而为蝗虫光电诱导物理捕集设备的研制和实施提供了技术支撑。

Influence and investigation of locust's phototactic response enhanced by coupling between light and vibration

Based on locust's phototactic mechanism and locust's shocking characteristic stimulated by vibratory stimulation, the comparative test of locust's phototactic response to light-vibration coupling and spectral illumination was carried out by utilizing LED light source, vibration stimulation device and locust's behavioral experiment equipment. The results showed that spectral illumination and vibration stimulation coupling effects on locusts had the push-pull stimulation effect, vibration stimulation enhanced the increasing phototactic effects of locusts, and increased locust's phototactic response, while spectral light determined locust's phototactic induction effect. Spectral light and vibration stimulating locust's different sensory receptors initiated the distinction of locust's neural processing and sensitive response, causing that the cycle vibration mode(vibration frequency was 50Hz, vibration time was 400ms and vibration intermittent stop time was 1s) and higher vibration intensity and the enhancing effects of locust's phototactic response intensity was better in the cycle vibration mode coupled with violet light. Light-vibration stimulating locust could lead to the physiological effect, and the initial stimulation effect generating the physiological effect of locust was the stronger with the stronger energy of light and vibration. The difference of locust's sensitive response point to light and vibration, the attenuation properties of light and vibration transmission, locust's sensitive selective tuning would influence the increasing degree of locust's phototactic effects stimulated by light-vibration coupling. So through combining the strength threshold of vibration scaring locust's response with the optimal regulative mode of vibration stimulating locusts can realize vibration stimulating with moving and approaching step by step in scope of locust's response to spectral illumination and locust's phototactic effect could be enhanced effectively. These results could provide the technical support for the implementation of photoelectric induction equipment of locust.