【摘要】 在中华按蚊实验种群动力学研究的基础上,1983年7～8月,在河南省郑州祭城乡西湖庄村的稻田和水塘内进行了中华按蚊自然种群动力学的研究。生殖、存活和数量变动规律是其中的一个方面。通过该项研究,求得自然条件下该地区中华按蚊种群动态数据如下: 1.产卵周期平均为2.5天,最短者为2天,最长者为3.375天。2.蚊群当黄昏活动高峰后和黎明时各出现一次产卵高峰。3.产卵数最高值为400个/次/只,最低值为4个/次/只。平均产卵数七月份为96个/次/只,八月份为73个/次/只。4.成蚊前期平均发育历期七月份为14.1667天,八月份为13.3167天。5.羽化到吸血的平均时间为1.0078天。6.成蚊平均寿命七月份为4.6538天,八月份为4.9253天。七、八月份雌性成蚊中寿命超过12天者约占千分之七。这些成蚊具有传疟的危险性。根据未产卵蚊和经产蚊比率变化,推断出六、八两月内种群数量各出现一次高峰。更多还原

【Abstract】 The further research of natural population dynamics of An. sinensis, o?the basis of experimental studies, has been carried out in the rice fields andthe ponds of western Huzhuang village, Zhacheng, Zhengzhou from July toAugust in 1983. The reproduction and survival as well as the pattern of the changes innumber were carefully observed. Some relative data about its populationactivities under natural condition in this area were obtained. 1. The avereage circle of oviposit is 2.5 days. The shortest 2 days andthe longest 3.375 days. 2. Egg laying peaks are found twice a day.One is at dawn and the otherafter the activity peak in the evening. 3. The maximum of oviposit is 400/time/mosquito, while the minimumis 4. The average number is 96/time/mosquito in July and 73 in August. 4. Average pre-adult stage is 14.1667 days in July, 13.3167 in August. 5. The average duration from emergence to sucking blood is 1.0078 days. 6. The average adult lifetime is 4.6538 days in July and 4.9253 days inAugust. 0.7% females can survive over 12 days. It is indicated that there areconsiderable potential dangers on spreading malaria. According to the ratesof parous and nulliparous of An. sinensis, it is predicted that there will betwo peaks of population density in June and August respectively.更多还原