北京市奥林匹克森林公园蚊虫诱蚊灯密度与刺叮率关系的研究

A study of the correlation between lamp trapping mosquito density and biting rate in Beijing

目的了解北京市奥林匹克森林公园内蚊虫刺叮率行为动态,并分析刺叮率与蚊虫灯诱法密度关系。方法于2013年7-9月间运用人诱停落法与CO2诱蚊灯法对蚊虫的刺叮率和种群密度进行动态监测;应用Pearson分析方法对蚊虫诱蚊灯密度与刺叮率做相关性分析,同时利用线性回归方法拟合出基于CO2诱蚊灯法蚊虫密度预测蚊虫刺叮率的线性模型。结果北京市蚊虫群落中淡色库蚊仍为优势种,三带喙库蚊次之;7-9月间,蚊虫刺叮率连续上升,而诱蚊灯密度在8月有1个低谷;诱蚊灯密度与刺叮率在7和9月存在线性回归模型关系,而8月蚊虫的刺叮率与诱蚊灯密度无相关关系。结论诱蚊灯密度与蚊虫刺叮率密切相关,北京地区蚊虫群落仍以淡色库蚊为优势种,淡色库蚊种群密度与该区域内人群受蚊虫叮咬概率显著相关。

Objective To investigate the biting rate dynamics of mosquitoes in Beijing Olympic Forest Park(BOFP), and to analyze the correlation between biting rate and the population density measured by the lamp trapping method. Methods A dynamic monitoring of the biting rate and population density of mosquitoes was conducted by human landing catch and CO2 trapping lamp from July to September, 2013. Pearson correlation analysis was performed to analyze the relationship between the mosquito density measured by the lamp trapping method and biting rate, and a linear regression analysis was used to build a linear model for prediction of the biting rate based on the mosquito density measured using the CO2 trapping lamp. Results Culex pipiens pallens was the dominant species of mosquito community in Beijing, followed by Cx.tritaeniorhynchus. The biting rate of mosquitoes continuously increased from July to September, and a trough of lamp trapping mosquito density was detected in August. There was a linear correlation between lamp trapping mosquito density and biting rate in July and September, while there was no correlation between them in August. Conclusion The mosquito density measured by the lamp trapping method is closely correlated with the biting rate of mosquitoes. Cx. pipiens pallens is the dominant species of mosquito community in Beijing, and the probability of people being bitten by mosquitoes is significantly correlated with the population density of Cx. pipiens pallens.