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目的掌握近年来上海中心城区成蝇季节消长规律、种群构成,为蝇类防控提供依据。方法 2013年3月下旬-11月下旬采用笼诱法对上海中心城区2个公园与1个居民区进行每周1次的成蝇监测,并与2008-2012年常规监测资料进行对比分析。结果 2013年共捕捉成蝇5科40种共计8 004只,其中双重厕蝇为上海地区新纪录;最优势蝇种为大头金蝇(构成比为20.50%),成蝇高峰分别出现于6、8月,分别为140.00和100.60只/(d·笼),7月出现一个明显下降;2008-2012年常规监测,最优势蝇种为丝光绿蝇(构成比24.48%),优势蝇种构成与2013年存在明显差异;不同年份的成蝇频数分布存在显著差异(χ2=187.923,P<0.01),且仅个别年份间的变化趋势存在显著相关性。结论上海中心城区蝇类侵害以大头金蝇、丝光绿蝇等为主,不同监测环境与监测方法间存在较大差异,蝇类侵害防控依然严峻。
OBJECTIVE To grasp the law of population growth and population and the composition of the population in downtown Shanghai in recent years and provide the basis for the prevention and control of flies. Methods From late March to late November, 2013, cage-induction method was used to conduct weekly flies surveillance in two parks and one residential area in downtown Shanghai, and compared with routine monitoring data from 2008 to 2012. Results In 2013, a total of 8 004 species were captured in 5 families and 40 families. Among them, the double room fly was the new record in Shanghai. The dominant fly species was Drosophila melanogaster (composition ratio: 20.50%), and the adult fly peak appeared at 6, August, respectively, 140.00 and 100.60 / (d · cage), a significant decline in July; 2008-2012 regular monitoring, the dominant flies species Lucilia sericata (composition ratio of 24.48%), the dominant species of fly species and There was a significant difference in 2013. There were significant differences in frequency distribution of adult flies in different years (χ2 = 187.923, P <0.01), and there were significant correlations only in the trend of individual years. Conclusion The flies in the downtown area of Shanghai are dominated by golden flies, green flies, etc. There are big differences between different monitoring environments and monitoring methods, and the flies prevention and control are still severe.