济宁市1986—1997年鼠密度监测报告

对济宁市鼠情监测12年结果分析表明:鼠密度由1986年的1.96％逐年下降至1989年的1.49％,1990年又有所回升,并一直保持在3.15％左右。室内鼠密度2.33％明显高于室外1.99％、以秋季鼠密度最高为2.86％。室内鼠构成比,1986—1991年褐家鼠51.80％为优势鼠种;1992—1997年小家鼠53.66％上升为优势鼠种。室外鼠种构成比1986—1988年大仓鼠31.98％、黑线姬鼠29.34％为优势鼠种。1989—1997年黑线姬鼠成为唯一的优势鼠种。因此,作者认为应选择一种对小家鼠和黑线姬鼠杀灭力强的新药,在每年的2—3月份和9—10月份进行灭鼠,才能进一步降低鼠密度。

Monitor Report of Rodent Population Density in Jining From 1986 to 1997

The Situation of rodent in Jining From 1986 to 1997was analyzed in this paper. The results showed:The rodent population density decreased year after year and it was 1. 96% in 1986 while 1. 49% in 1989. However,it rose somewhat in 1990 and retained the record of 3. 15% or so. The indoor rodent population density(2. 33%)was much higher than that of the OutdoorG. 99%) ,and it reached an average of 2. 86% in autumn. Of all the in door rodents,the Rattus norvegicus made up 51. 80%,Occupying a dominant position in the indoor Constitution ratio from 1986 to 1991 while Mus musculus took the superior place by constituting 53. 66% From 1992 to 1997. Both the Cricetulus triton and apodemus agrarius had superior numbers by making up 31. 98% and. 29. 34% separately From 1986 to 1988. Apodemus agrarius became the only dominant kind of outdoor rodent. In conclusion,the writ er believed that the effective way to decrease rodent population density further was to choose a kind of powerful new drug to kill rodents from Feb. to Mar. and from Sept. to Oct. every year.