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目的了解大竹县不同生境鼠类密度、种类构成、季节消长和数量变化情况,为制定防制方案提供科学依据。方法采用夹夜法,每个生境每次布鼠夹300夹以上,晚放晨收。城镇、农舍普通居民住宅每个房间布一夹,超过15m2的房间布两夹;农田沿一定生镜每5 m布一夹,监测点半年内不重复布夹;并统计分析监测数据。结果布鼠夹43 814夹次,捕鼠2 704只(8个品种),平均鼠密度为6.17%。主要优势种为四川短尾鼩、褐家鼠、小家鼠、黑线姬鼠。不同生境不同年份平均鼠密度差异有统计学意义(χ~2=40.10,P<0.05)。结论基本掌握了大竹县不同生境鼠类密度、种类构成、季节消长和数量变化。
Objective To understand the density, species composition, seasonal fluctuation and population changes of rodents in different habitats in Dazhu County, and to provide a scientific basis for the development of control programs. Method using the law of the night, each habitat per mouse cloth folder more than 300 clips, late morning morning income. Towns, farmhouses Ordinary residential dwelling houses a folder, more than 15m2 room cloth two clips; farmland along a certain mirror every 5 m cloth clip, monitoring points within six months do not repeat cloth clip; and statistical analysis of monitoring data. Results There were 4384 placental clips and 2 704 mice (8 breeds) with a mean rat density of 6.17%. The main dominant species is Sichuan breed, Rattus norvegicus, Mus musculus, Apodemus agrarius. The average density of rats in different years in different habitats was significantly different (χ ~ 2 = 40.10, P <0.05). Conclusion The density, species composition, seasonal fluctuation and population changes of rodents in different habitats in Dazhu County are basically mastered.