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首页> 外文期刊>The Korean Journal of Parasitology >Population density of chigger mites, the vector of tsutsugamushi disease in Chollanam-do, Korea
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Population density of chigger mites, the vector of tsutsugamushi disease in Chollanam-do, Korea

机译：Cho南道of虫病的媒介chi螨的种群密度

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摘要

The geographical distribution and population density of rodents and chigger mites at six localities of Chollanam-do were investigated from October to December in 1993. Among total 142 field rodents collected by the modified Chemla wooden traps, 131 rodents were Apodemus agrarius (92.3%) and 11 were Crocidura lasiura (7.7%). Out of 142 field rodents, 92 were parasitized by chiggers, showing 69.0% of the infestation rate and 74.2 of the chigger index. Infestation rate and chigger index of A. agrarius and C. lasiura were 73.3%, 80.4 and 18.2%, 0.5, respectively. From the trapped field rodents, 10,532 chiggers were collected and identified with 11 species of 4 genera. Leptotrombidium pallidum, the vector species of tsutsugamushi disease, was the dominant species, showing 8,038 chiggers (76.3%). L. scutellare was the second dominant species showing 1,359 chiggers (12.9%). The distribution of chigger mites was clearly localized by the species, showing the different dominant species according to localities. The predominant species was L. scutellare (100%) in Changhung-gun, L. scutellare (41.5%) in Posong- gun, L. pallidum (88.8%) in Hwasun-gun, L. pallidum (59.2%) in Koksong- gun, L. zetum (77.3%) in Hampyong-gun, and L. palpale (63.4%) in Tamyang-gun. Regarding to the geographical distribution of chigger population density, the infestation rate and chigger index was most high in Hwasun-gun as 62.4% and 216.2 respectively, and next high in Koksong-gun as 22.4% and 77.7% respectively.
机译：1993年10月至12月，对Chollanam-do六个地区的啮齿动物和chi螨的地理分布和种群密度进行了调查。在改良的Chemla木制诱捕器收集的142只野外啮齿动物中，黑线姬鼠（Apodemus agrarius）（92.3％）和131只啮齿动物。 11个是Crocidura lasiura（7.7％）。在142只田鼠中，有92只被gg虫寄生，表现出69.0％的侵染率和74.2％的index虫指数。 A. agrarius和C. lasiura的侵染率和chi指数分别为73.3％，80.4和18.2％，0.5。从捕获的啮齿动物中，收集了10,532只chi，并鉴定了4个属的11种。 gam虫病的传播媒介苍白细角柏为优势种，显示出8,038 chi（76.3％）。盾cut是第二大优势种，表现出1359头chi（12.9％）。 gg螨的分布明显地由该物种定位，显示了根据位置不同的优势物种。优势种是昌兴郡的黄cut（100％），蒲松郡的黄（（41.5％），和顺郡的苍白（（88.8％），兴城的苍白（59.2％）。汉平郡的泽特姆（77.3％）和淡阳郡的帕尔帕莱（63.4％）。从chi种群密度的地理分布来看，和顺郡的in虫发生率和chi指数最高，分别为62.4％和216.2，其次是兴城郡，分别为22.4％和77.7％。

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