关键词: 北京奥运场馆, 病媒生物, 密度监测, 种群动态

Abstract:

　　【Abstract】 　Objective　To know about the population distribution and seasonal fluctuation of main vectors by the successive monitoring from 2006 to 2008 in Beijing Olympic venues, and to provide the scientific basis for vector control. Methods 　The CO₂ trapping lamp method was used for the surveillance of mosquitoes, baited cage trapping method for the flies, night trapping method for rats and paste catching method for cockroaches. Results　Culex pipiens pallens was the dominant species of mosquito, accounting for 96.94% of the caught mosquitoes in Beijing Olympic venues. The dominant species of fly was Sarcophaginae, accounting for 46.13 % of the caught flies. Mus musculus Linnaeus was the dominant species of rats, accounting for 63.30 % of the caught rats. Blattella germanica was the dominant species of cockroaches, and all the captured cockroaches were German cockroaches. Compared with 2006 and 2007, the density of main vectors decreased significantly in 2008. During the period of the Olympic Games, the density of main vectors had been in the low level. The density of mosquito declined 88.57% and 89.26%, 69.88% and 81.63% for the fly density, 100% for the rat density and 99.98% for the cockroach density. Conclusion　The density of main vectors decreased significantly during the period of Beijing Olympic Games. No serious harmful events caused by vectors occurred in Beijing 2008 Olympic Games. The goal about vector control had been realized completely.

Key words: Beijing Olympic venues, Vector, Density monitoring, Population dynamic