光谱对东亚小花蝽趋光行为的影响

利用行为学方法研究了340—605nm波谱内14个单色光对东亚小花蝽Orius sauteri(Poppius)成虫的趋、避光行为的影响。结果显示:(1)各单色光均能引起东亚小花蝽成虫趋光行为反应,雌、雄虫的趋光行为反应曲线均为多峰型,峰间主次明显。趋光行为反应率较高的区域有3个,分别是紫外区(340、360 nm和380 nm)、绿光区(524 nm)和橙红光区(582 nm雄虫此处不高、605 nm);(2)各单色光都能引起东亚小花蝽成虫避光行为反应,雌虫避光行为反应曲线为多峰型,避光行为反应率最高的区域为蓝光近紫外区(400 nm),雄虫避光行为曲线为波浪形,避光行为反应率最高的区域为蓝光区(483 nm)。(3)性别对趋光行为反应趋势影响不大,但对趋、避光反应率有较大影响。雌虫趋光反应率最高为47.50%(380 nm),雄虫最高为35.00%(360 nm);雌虫避反应率最高为19.17%(400 nm),雄虫避光反应率最高为11.25%(483 nm)。结果表明:光谱对其趋光行为有一定影响,不同波长之间有较大差异;性别对其光谱行为反应有较大影响。

Effect of spectral sensitivity response on the phototaxis of Orius sauteri (Poppius)

The Orius sauteri (Poppius) is an important predatory natural enemy with a broad diet menu. As an independent biological control agent, O. sauteri was imported to the major regions of agroforestry ecosystem in China. There is no good artificial rearing technology for, which makes it difficult to be used as biocontrol agent in a large scale now. So it is very important to protection and utilization of natural population. In the present paper, the phototaxis behavior of Orius sauteri (Poppius) in response to spectral sensitivity was investigated at 14 monochromatic lights selected through 340nm to 605nm. The results were as follows: (1) Each monochromatic light can cause Orius sauteri phototaxis behavioral responses, phototaxis behavior reponse curves of female and male are multimodal, the primary area in ultraviolet (340 nm, 360 nm and 380 nm), the secondary in green (524 nm), and the rest in orange red light district (583 nm, 605 nm ). (2) Each monochromatic light can cause Orius sauteri (Poppius) photophobism behavioral responses, the curve of female is multimodal, the primary peak at green (400 nm), the male''s curve is undulation, the primary peak at blue (483 nm). (3) The effect of sex to response to the spectral sensitivity is not significant, but the response rate values is significant. The phototaxis highest response rate of female was 47.50% at 380 nm,the male was 35.00% at 360 nm. The photophobism highest response rate of female was 19.17% at 400 nm, and the male was 11.25% at 483 nm. It can be concluded that the spectrum of light stimulus gave rise to the phototaxis of Orius sauteri (Poppius) and have significant between the wavelength, gender is an important factor affecting the spectrum of behavioral responses.