关键词: 病媒生物, 密度, 种群构成, 季节消长

Abstract:

Objective To investigate the population composition and seasonal succession of biological vectors in Cixi city, 2008, providing the basis for implementation of vector prevention and control. Methods Rodents, mosquitoes, flies and cockroaches were monitored using night traps, light traps, cage traps and paste baits, respectively. Results Rattus norvegicus was the dominant species of rodents, accounting for 72.22% of the total captured mice; Culex pipiens pallens was the dominant species of mosquitoes, accounting for 49.81%; Musca domestica and Chrysomya megacephala were the dominant species of flies, accounting for 24.64% and 27.87% of the total, respectively; Blattella germanica was the dominant species of cockroaches, accounting for 81.20%. Rodent activities peaked in spring and fall, while those of mosquitoes, flies and cockroaches topped from July to September. Conclusion The population composition and seasonal dynamics of vectors are basically clarified.

Key words: Vector, Density, Population composition, Seasonal dynamics