韭菜迟眼蕈蚊成虫行为活动昼夜节律

【目的】本研究旨在明确韭菜迟眼蕈蚊Bradysia cellarum成虫行为活动的昼夜节律，为其室内饲养、行为学研究和研发精准、高效的监测与防控新技术提供依据。【方法】室内系统观察记录了韭菜迟眼蕈蚊成虫羽化盛期求偶、交配、产卵、移动与静息等行为的昼夜节律，分析了其特定行为的时间分配特征。【结果】韭菜迟眼蕈蚊成虫的运动行为和静息行为白天和黑夜均有发生，夜间的繁殖行为(求偶、交配和产卵)频次高于白天的，各时间点的移动、静息和繁殖行为频次占比间均具有显著性差异。韭菜迟眼蕈蚊雌雄成虫的求偶节律相同，一天中求偶有两次高峰，分别出现在3:00和7:00。韭菜迟眼蕈蚊雌雄成虫的交配节律与雌成虫的产卵节律相似，雄成虫移动行为频次占比的峰值时刻均出现在3:00时，雌成虫移动行为频次占比的峰值时刻则出现在19:00时。雌雄成虫静息行为的频次占比均无明显昼夜节律高峰。在日时间分配上，雌、雄成虫以静息行为的时间占比最多，分别为89.53%和89.90%;求偶行为的时间占比最少，分别为0.56%和0.89%。雌雄成虫各行为的日时间占比差异不显著。【结论】韭菜迟眼蕈蚊成虫的求偶、交配、产卵、移动和静息行为具有明显...

Circadian rhythms of the behavioural activities ofBradysia cellarum(Diptera: Sciaridae) adults

【Aim】 This study aims to clarify the circadian rhythms of the behavioural activities of Bradysia cellarum adults, and provide basis for indoor breeding, behavioral research and development of accurate and efficient monitoring and novel control technologies. 【Methods】 The circadian rhythms of courtship, mating, oviposition, movement and resting of B. cellarum adults during the emergence peak were observed and recorded, and the time allocation characteristics of their specific behavior were analyzed. 【Results】 The locomotor and resting behaviors of B. cellarum adults occurred both in the daytime and at night, and the frequencies of reproductive behaviors (courtship, mating and oviposition) occurring at night were higher than those in the daytime, and there were significant differences in the proportion of frequencies among movement, resting and reproductive behaviors at various time points. The female and male adults of B. cellarum showed the same courtship rhythm, with two courtship peaks at 3:00 and 7:00, respectively. The mating rhythms of female and male adults of B. cellarum were similar to the oviposition rhythm of female adults, and the proportion of frequencies of movement reached the peak at 3:00 while that of female adults reached the peak at 19:00. There was no obvious circadian rhythm peak in the proportion of frequencies of resting behavior of female and male adults. As for daily time allocation, the resting behaviors of female and male adults accounted for the largest proportion of time, with the proportions of time of females and males of 89.53% and 89.90%, respectively, and the proportions of time of courtship behaviors of female and male adults were the least, being 0.56% and 0.89%, respectively. There was no significant difference in the daily proportion of time of various behaviors between female and male adults. 【Conclusion】 The courtship, mating, oviposition, movement, and resting behaviors of B. cellarum adults show obvious circadian rhythms, and the frequency of occurrence of different behaviors and the time points of activity peaks are different.