关键词: 蚊虫, 密度, 种群构成, 季节消长

Abstract:

Objective To determine the species composition and seasonality of mosquitoes in different environments in Tianjin, then provide scientific basis and proposal for the prevention and control of mosquitoes and mosquito-borne diseases. Methods From April to November during 2011 to 2015, mosquitoes were captured by light trapping in 16 cities or countries of Tianjin, and then the data were analyzed. The adult mosquito surveillance data from every district collected by light trapping were analyzed. Results From 2011 to 2015, 393 176 mosquitoes were captured,which belonged to 4 species, 3 genera, 2 subfamilies, and Culex pipiens pallens was the predominant species, accounting for 94.98% of the total number of mosquitoes. The active peak of mosquitoes was from July to August, the highest density appeared in July in 2011, which is 42.08/(trap·h). In different environments, the density in livestock shed was always the highest from 2011 to 2015. The average density was 24.34/(trap·h). Conclusion The species composition and seasonal fluctuation of vectors mosquitoes were preliminarily known. And the results provide guidance for mosquito and mosquito-borne diseases control.

Key words: Mosquitoes, Density, Species composition, Seasonalily