贵州省农区鼠害监测结果与灾变规律分析

通过分析1984—2005年贵州省23个县（市、区）鼠情监测结果表明，贵州省家栖鼠类和农田鼠类主要种类有16种，褐家鼠、黄胸鼠、小家鼠为家栖鼠优势种，占总鼠数的96．35％；黑线姬鼠为稻田、旱地耕作区害鼠优势种，占总鼠数的64．88％；褐家鼠、黄胸鼠为常见鼠种，分别占总鼠数的11．68％、13．42％，在部分地区也为农田害鼠优势种；高山姬鼠为黔西北部分地区优势种。贵州省农区灭鼠的重点是黑线姬鼠、高山姬鼠、褐家鼠、黄胸鼠、小家鼠5种害鼠。应将其列为贵州省主要的监测对象。同时分析了5种害鼠的种群繁殖特征和种群数量灾变规律。

Generating pattern of rodent pest in the agricultural field of Guizhou province

The situation of mouse occurrence in 23 counties of Guizhou province during 1984 - 2005 was monitored. The results showed that there were 16 rodent species, which belong to Guizhou house mouse and farmland mouse. Among them, Rattus norvegicus,R.flavipectus,Mus musculus were the dominant house mouse species, with the rate of 96.35% in total mouse number. And Apodemus agrarius was the dominant species in rice field and dry filed, with the rate of 64.88%. R. norvegicus and R. flavipectus were common species and dominated in some farmlands, with the rate of 11.68% and 13.42% respectively. A. chevrieri was the dominated species in the northwest of Guizhou province. The author suggested that controlling and monitoring the rodent pest in the field of Guizhou province should focus on A. agrarius, A. chevrieri , R. norvegicus , R. flavipectus , and M. musculus. Besides, the population reproductive characteristic and population quantity disaster pattern on those 5 species were analyzed, which provided the scientific basis for the feasible prevention strategy and control method.