中国寄生虫学与寄生虫病杂志 ›› 2006, Vol. 24 ›› Issue (5): 5-344.

• 论著 • 上一篇    下一篇

云南省16县(市)大绒鼠体表寄生恙螨调查

侯舒心1;郭宪国1;门兴元1,2;牛爱琴1,3;董文鸽1;石武祥4   

  1. 1 大理学院基础医学院, 大理 671000; 2 汕头大学医学院, 汕头 515031; 3 贵阳医学院, 贵阳 550004; 4 大理学院公共卫生学院, 大理 671000
  • 收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:2006-10-30 发布日期:2006-10-30
  • 通讯作者: 郭宪国

Investigation of Chigger Mites on the Rat Eothenomys miletus in Yunnan

HOU Shu-xin1;GUO Xian-guo1;MEN Xing-yuan1,2;NIU Ai-qin1,3;
DONG Wen-ge1;SHI Wu-xiang4
  

  1. 1 Faculty of Basic Medicine, Dali University, Dali 671000, China;2 Medical College, Shantou University, Shantou 515031, China;3 Guiyang Medical College, Guiyang 550004, China; 4 Faculty of Public Health, Dali University, Dali 671000, China
  • Received:1900-01-01 Revised:1900-01-01 Online:2006-10-30 Published:2006-10-30
  • Contact: GUO Xian-guo

摘要: 目的 了解云南省大绒鼠体表寄生恙螨的种类、空间分布情况、优势种及其种间关系。 方法 选取2000~2004年云南省16县(市)现场用鼠笼加食饵诱捕大绒鼠,收集耳壳及耳窝部所有恙螨,进行分类和鉴定。恙螨种间关系与种群的空间分布格局分别用协调系数(V)和聚块指数(m*/m)判定。 结果 捕获大绒鼠1 157只。收集恙螨37 613只,隶属3亚科9 属80种。大绒鼠总带螨率(68.2%)和总螨指数(32.5)较高,其中小板纤恙螨、中华纤恙螨、西盟合轮恙螨、绒鼠纤恙螨、枪棒爬虫恙螨、寒冬纤恙螨6种恙螨为优势种,在不同大绒鼠个体之间呈聚集型分布;优势恙螨之间存在正协调和负协调关系。 结论 大绒鼠体表恙螨种类繁多、数量大、物种多样性高,主要恙螨在大绒鼠体表的寄生有聚集性。

关键词: 恙螨, 大绒鼠, 种间关系, 空间分布, 云南

Abstract: Objective To understand the species, species distribution, the dominant species and their interspecies interaction of chigger mites on Eothenomys miletus(a dominant species of rats) in Yunnan.  Method   The rats were captured with mouse traps in 16 counties (or cities) during 2000-2004. All mites on the surface of two auricles of the hosts were collected and identified. The patch index (m*/m) and the coefficient of association (V) were adopted to judge the spatial distribution patterns and interspecies interaction of the dominant chigger mite species among different individuals of the rats (E. miletus). Results 1157 individuals of E. miletus were captured from 16 counties (citys). 37613 chigger mites (belonging to 3 subfamily, 9 genus and 80 species) were collected from the auricles (body surface) of 1157 rat hosts with a high “overall mite infestation rate” (68.2%) and “overall mite index” (32.5). Six species of mites were found dominant on E. miletusLeptotrombidium scutellare, Leptotrombidium sinicum, Helenicula simena, Leptotrombidium eothenomydis, Herpetacarus hastoclavus and Leptotrombidium hiemalis. The distribution of the chigger mites among different individuals of E.miletus showed an aggregation pattern. Both positive and negative association existed between each two dominant species of chigger mites. Conclusion The species composition of chigger mites on Eothenomys miletus is complex with abundant individuals, which reflects a high species diversity of the mites. The main species of chigger mites tend to an aggregation on the body surface of E. miletus.

Key words: Chigger mite, Eothenomys miletus, Interspecies interaction, Spatial distribution, Yunnan