关键词: 病媒生物, 种群, 密度, 监测

Abstract: Objective To surveil the population distribution and density fluctuation of the main vectors in Shenzhen Universiade venues from 2010 to 2011, and to provide a scientific basis for controlling vectors. Methods The CO₂ light trap was used for the surveillance of adult mosquitoes, the mosq-ovitrap for Aedes albopictus, the cage for flies and rats, and sticky board for cockroaches. Results Culex pipiens pallens was the dominant species of mosquitoes caught in Shenzhen Universiade venues, accounting for 89.47% (476/532), and Ae. albopictus accounted for 9.96% of all caught mosquitoes. The dominant species of caught flies was Chrysomya megacephala (37.83%, 2428/6419), followed by Lucilia cuprina (19.16%, 1230/6419), and Boettcherisca peregrina (17.36%, 1114/6419). Rattus norvegicus was the dominant species of caught rats, accounting for 88.37% (38/43). Blattella germanica was the dominant species of caught cockroaches, accounting for 97.15% (477/491). Compared with the data obtained in 2010, the densities of main vectors decreased significantly in 2011. During the Universiade held in Shenzhen, the densities of main vectors were kept at low levels. The density of adult mosquitoes decreased by 20.55%, and the mosquito and oviposition positive index of Ae. albopictus decreased by 77.70%, and the densities of flies, rats, and cockroaches decreased by 91.29%, 44.38%, and 73.10%, respectively. Conclusion Surveillance and control significantly decreased the densities of the main vectors in Shenzhen Universiade venues and prevented the adverse effects of vectors during Universiade.

Key words: Vector, Population, Density, Surveillance