Vector Laboratory, Institute of Pathogens and Vectors, Dali University (Branch of Key Laboratory for Preventing and Controlling Plague of Yunnan Province), Dali, Yunnan, 671000, China,
Parasitol Res. 2013 Oct;112(10):3543-9. doi: 10.1007/s00436-013-3537-6. Epub 2013 Aug 2.
Ectoparasitic insects and mites on Yunnan red-backed voles (Eothenomys miletus) in Dali prefecture, Yunnan Province, southwest China, were studied between 2003 and 2004. In total, 34,389 individuals of 86 species of ectoparasitic insects (seven species of fleas and five species of sucking lice) and mites (23 species of gamasid mites and 51 species of chigger mites) were collected from 916 individual hosts. The diversity of ectoparasites on this single rodent species in such a small area was much higher than in previous reports, which concerned more host species and greater geographical areas. The majority of the ectoparasites were chigger mites, which accounted for 59.3% of the parasite species and 87.4% of the individual parasites. Most voles harbored parasites with an overall prevalence (P) of 82.5% and mean abundance (MA) of 37.5 parasites per host. The dispersion coefficient (C) and patchiness index (m*/m) were used to study the spatial patterns of the seven dominant parasite species, and all seven had aggregated distributions. The species abundance distribution of the ectoparasites on the vole was fitted by Preston's lognormal distribution (R (2) = 0.82), and the total expected parasite species was estimated from this plot as 167 species. Yunnan red-backed voles harbor many ectoparasites as revealed by examination of a large host population. Future field investigations should sample large numbers of host individuals to assess ectoparasite populations.
2003 年至 2004 年期间，在中国西南部云南省大理州对云南田鼠（Eothenomys miletus）上的外寄生虫昆虫和螨虫进行了研究。共从 916 只宿主身上采集到 86 种外寄生虫昆虫（7 种跳蚤和 5 种虱）和螨虫（23 种革螨和 51 种恙螨）的 34,389 只个体。在如此小的区域内，单一啮齿动物物种的外寄生虫多样性远远高于以前的报告，这些报告涉及更多的宿主物种和更大的地理区域。大多数外寄生虫是恙螨，占寄生虫物种的 59.3%和个体寄生虫的 87.4%。大多数田鼠携带寄生虫，总流行率（P）为 82.5%，平均丰度（MA）为每宿主 37.5 只寄生虫。使用散布系数（C）和斑块指数（m*/m）研究了七种主要寄生虫物种的空间格局，所有七种寄生虫均呈聚集分布。用 Preston 的对数正态分布（R（2）= 0.82）拟合了外寄生虫对田鼠的物种丰度分布，从该图中估计出总预期寄生虫物种数为 167 种。对大量宿主种群的检查表明，云南田鼠携带许多外寄生虫。未来的实地调查应采集大量的宿主个体来评估外寄生虫种群。
