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研究两种光照条件下异色飘虫雄成虫的食饵搜索行为．结果表明，５种刺激均 能激发搜索行为由广域型转换为地域集中型；摄食时间越长，ＧＵＴ值越大；摄食的最后一 个食饵大小决定ＧＵＴ的长短；光照强度对搜索行为影响不大．
To study the prey search behavior of adult C. elegans under two light conditions. The results showed that all five kinds of stimuli could stimulate the search behavior from wide-area to geographically concentrated. The longer the feeding time, the larger the GUT value. The last food-bait size determined the length of the GUT. The light intensity had little effect on the search behavior .