福建省家栖鼠类组成演替的探讨

A DISCUSS1ON ABOUT THE CONSTITUENT EVOLUTON OF DOMESTIC RATS IN FUJIAN PROVINCE

鼠种组成的演替乃鼠类种群生态学的一个重要问题。家栖鼠种组成的动态,尤以优势鼠种的更替,将直接影响人、畜健康和经济财富破坏的程度。现将我省有关资料分析讨论如下.我省地处亚热带,住宅内的鼠种较为繁多。据1954年工作人员捕获鼠数据,按动物地理区划统计结果:地处闽东南的闽广沿海亚区的部分地区,晋江、莆田、南安、平和、南靖等地,黄胸鼠(Rattus flavipectus flavipectus)占总鼠数75961的58.31%,褐家鼠(Rat-tus fulvescens huang 仅占7.64%;地处闽西北的东部丘陵平原亚区的浦城、邵武、沙县、

This paper gives a report on a survey of the constituent evolution of domestic rats,which were captured in houses during 1954 and 1982—1984 in Fujian.The constituent rate of Rattus norvegicus socer in southeast Coa- stal Plain Subregion of Fujian(belonging to South China Region)raised from 7.64% to 22.75% In the northwest Hilly Plain Subregion of Fujian (belonging to the Central China Region),it raised from 18.47% to 56.01%. And yet,the constituent rate of Rattus flavipectus flavipectus in the southeast Coastal Plain Subregion of Fujian reduced from 58.31% to 38.54%。In the northwest Hilly Fujian Subregion it reduced from 40.50% to 19.09%. The author attempts to give a constituent evolution analysis of the relation bejween R。flavipectus flavipectus and R。norvegicus socer。The results may be briefly summarized as follows。 1.There is difference concerning adaptability of climatic circumstances and geographical distribution between R。norvegicus socer and R。flavipectus flavipectus。No doubt,the adaptability of the former were stronger than that of the latter。 2.The adaptability of R。flavipectus flavipectus varies with the vicissitudes of the environment。 3.The rate of reproduction of R。norvegicus were higher than that of R。flavipectus flavipectus.This pheomenon will benefit the population growth of R。norvegicus。