哈尔滨郊区人为鼠疫疫源地蚤类种群动态分析

An analysis on the population dynamics of fleas in the man-made plague focuses of Harbin suburbs

198 2～ 1999年对黑龙江省哈尔滨郊区人为鼠疫疫源地达乌尔黄鼠Spermophilusdauricus巢蚤、体蚤、洞干蚤指数和染蚤率进行了调查和分析。共获蚤 9种 ,其中方形黄鼠蚤松江亚种Citellophiustesquorumsungaris是优势种 (89 39%) ,其次为二齿新蚤Neopsyllabidentatiformis (10 37%)。 3类蚤指数、染蚤率的均值差异均显著 (P <0 0 1)。巢蚤与体蚤指数相关显著 (P <0 0 5 )。巢蚤指数∶体蚤指数∶洞干蚤指数≈ 6 5 0∶140∶1;巢染蚤率∶体染蚤率∶洞干染蚤率≈ 16 5∶88∶1。

The burrow nest,body and burrow track fleas of the Daurian ground squirrel,Spermophilus dauricus,and their infecting rates in the man-made plague focuses in the suburbs of Harbin,Heilongjiang Province,China were investigated during 1982～1999. Nine flea species were found from the ground squirrel burrow nest,body and burrow track,among which Citellophilus tesquorum sungaris was the dominant species (89 65%) and Neopsylla bidentatiformis came the second (10 26%). There existed significant differences among the flea indexes of the three categories as well as their infecting rates (P<0 01). The correlation between indexes of the burrow nest flea and body flea was significant (P<0 05). The indexes of burrow nest flea,body flea and burrow track flea were approximate to 650∶140∶1,and their infecting rates approximate to 165∶88∶1.