吉林省鼠疫自然疫源地啮齿动物种群结构的研究

Study on Rodents Variety Structures of Jilin Province Plague Natural Focus

目的了解疫源地区啮齿动物类种群结构变化趋势,掌握野鼠与家栖鼠类相互交窜现象,确定发生动物鼠疫时相互之间所产生的影响。方法利用GPS技术,采用5m夹线法,以景观区域为单位进行啮齿动物种群结构的调查。结果疫源地区仅发现啮齿类动物17种,较50年代减少8种,其中棕背鼠平是首次在该区域的东辽河低山丘陵区发现。结论由于生态环境的改变,啮齿动物种类明显减少;家栖鼠类与野栖鼠类相互交窜现象较为普遍,一旦发生动物鼠疫将直接对人类构成威胁。

Objective To understand change tendency of rodents variety structures in plague regions of Jilin province and master cross - phenomenons on another between wild mice and demestic mice and determine produced influences when taking place plague. Methods By GPS technology and using clips every five meters in straight lines. We set up one hundred and four spots investigation to make investigations on rodents variety structures using landscope regions as a unit. Results We found rodents seventeen species in focus areas and reduced by eight species compared to 1950s and in it Clethrionomys rufocanus conclusion was found in low mountains and hilly lands of eastern Liaohe rivers. Coneluslons Because of changes of ecology environments, rodents variety evidently have been reduced By. Cross -phenomenons are universal between demestic mice and wild mice and it will threaten human beings in case epidemic situations of animal plague occurs.