【摘要】 <正> 闽东山区的鼠类以往调查甚少(洪朝长 1982)。该区是以鼠类为传染源的出血热(HFRS)的流行区。为搞好防治工作,作者等于1984年3月至1985年1月对该区鼠类生态进行较系统调查。现将调查结果总结如下。一、自然概况和调查方法更多还原

【Abstract】 An investigation on the rodential ecology in Zhouning county was carried out every two months from Mar.1984 to Jan.1985.At our working place,there are mainly five types of habitats,namely:the residential district,rice fields,base of a hill,mountain slope-sweet potato fields and forests of mountainous country.The results obtained are as follows. 1、There were different dominant species in the above five habitats. They were Rattus norvegicus+Mus musculus(the residential district),R. losea+Apodemus agrarius(the rice fields),A.agrarius+R.losea(the base of a hill and mountain slope-sweet potato fields),R.fulvescens+R. niviventer(the forests of mountainous country).Rodential distribution, from residential district to mountainous,were R.norvegicus,Mus musculus, R.flavipectus,Mus formosanus,R.losea,A.agrarius,R.niviventer,R. fulvescens and R.bowersii in turn. 2、There were different seasonal fluctuation of the rod ential pop- ulation density in the different habitats.The peak of rodential population density of the rice fields occured in Nov.to Jan.of the next year,that of the mountain slope-sweet potato fields in Nov.,that of the base of a hill in Jan.The lowest density was in July(the rice fields and sweet potato fields),Sept.(the base of a hill).The seasonal fluctuation of population density of R.losea and A.agrarius may be drawn with a curve of one peak,being highest in winter,so that it may also be called"posterior peak type"There wasn’t obvious seasonal fluctuation of house rodents. 3、There were seasonal variation in sex ratio and reproduction index. The reproduction index of R.norvegicus present positive correlation with the population densities of them after two months(r=0.8950 Y=6.1989+ 11.9369x). 4、There were obvious seasonal fluctuation in relative fatness of fields rodents.In A.agrarius,it was medium in May(k=3.22),the lowest in March.(k=2.98)and July(k=3.05),the highest in September.(k=3.00).In house rodents,there weren’t obvious seasonal fluctuations of relative fat- ness.The relativ-e fatness has no correlation with its population densities.更多还原