关键词: 病媒生物, 种群构成, 密度, 季节消长

Abstract:

　　【Abstract】　Objective　To investigate the population composition, density and seasonal fluctuation of vectors in Panzhihua in 2007, and to provide a scientific basis for its control.  Methods　Night trapping method was used for the surveillance of rodent, labor hour method for mosquito, cage?trapping for flies and sticky?paste for cockroach. Results　There were 4 species 2 genera 1 family rodent. Among them, Rattus norvegicus was the dominant species, accounting for 66.13%. Mosquitoes caught belonged to 7 species 4 genera 2 sub?family, and Culex quinquefasciatus was the dominant species, accounting for 60.71%. Flies belonged to 13 species 8 genera 3 family, and Musca domestica and Lucilia ricata were the dominant species, accounting for 30.05% and the 28.05%, respectively. Cockroach belonged to 3 species 2 genera 1 family, and Blattella germanica was the dominant species, accounting for 91.86%. The total density of rodent was 0.28%, highest in the residential areas. Mosquito density was 2.29/man· hour, highest in the rural households. Flies density was 5.70 /cage, highest in the agricultural farm. Cockroaches density was 0.44/ （piece· night）, highest in the restaurants. The peak of rodents and cockroaches was in August, only one peak in the year. However, mosquitoes and flies showed two peaks, which were in June and September for mosquitoes and June and September for flies. Conclusion　To master basically the population composition, density and seasonal fluctuation of vectors.

Key words: Vector biological, Populations composition, Density, Season fluctuation