镇江市2002-2009年对外开放口岸鼠情变化分析

Analysis of rodent changes from 2002 to 2009 in open port of Zhenjiang

目的了解和掌握镇江开放口岸鼠种和鼠密度情况,指导口岸鼠类的控制,防止传染病的传入或传出。方法镇江开放口岸有大港、谏壁、高资和扬中4个区域,每个区域选码头、草灌、仓库和生活4种不同环境进行调查,调查方法采用夹夜法。结果 8年共回收有效鼠夹2 5 4 6 6只,捕获鼠形动物1 9 7只,密度为0.7 7%,经鉴定鼠形动物属3目3科5属7种。8年中2 0 0 2年鼠密度最高为1.4 7%,2 0 0 9年最低为0.3 2%。不同年份鼠密度有显著性差异(2=5 8.3 6,P<0.0 1),不同环境中鼠种构成有显著性差异(2=51.52,P<0.01),鼠密度与监测年份之间呈负相关关系(相关系数r=-0.957,P<0.01),呈逐年下降趋势。结论通过鼠密度调查,掌握了镇江市开放口岸不同环境鼠的种群和密度情况,镇江市开放口岸有外来鼠种的入侵。指导今后灭鼠活动要有针对性的开展工作,做到事半功倍。

Objective To understand and master the conditions of mice types and density to help controlling the types and preventing the outgoing and incoming of infectious diseases caused by mice.Methods There were four open ports in Zhenjiang.They were Dagang,Jianbi,Gaozi and Yangzhong.Four places as docks,odd grass,stores and living quarters in such regions had been investigated.The method was using the plywood for catching rodent.Results About 25 466 plywoods had been returned within 8 years.197 different types of rodent were caught.The density of them was 0.77%.After identifying,there were 3 catalogue,3 family,5 genus.The highest density of rodent was in 2002 within 8 years,it was 1.47%.The lowest was 0.32% in 2009.The difference of rodent density was remarkable（χ2=58.36,P0.01））.The structure of rodent types in different environments was remarkable（χ2=51.52,P0.01）,rodent density and years for monitor showed negative correlation（r=-0.957,P0.01） and decreased with years going on.Conclusion By rat density survey,the different environments and density of rodent population situation have been mastered in Zhenjiang.External mouse species invasion exists in Zhenjiang.What has been done in the research would help the work for killing rodent.