中国媒介生物学及控制杂志 ›› 2009, Vol. 20 ›› Issue (6): 550-553.

• 论著 • 上一篇    下一篇

云南省横断山区柏氏禽刺螨种群生态学研究

黄丽琴,郭宪国,任天广,王乔花,吴滇,闫毅   

  1. 大理学院病原与媒介生物研究所(云南 大理 671000)
  • 收稿日期:2009-07-10 出版日期:2009-12-20 发布日期:2009-12-20
  • 通讯作者: 郭宪国,博士,教授, Email: xgguo2002@yahoo.com.cn
  • 作者简介:黄丽琴(1973-),女,江西萍乡人,硕士研究生,从事媒介生物学研究。
  • 基金资助:

    国家自然科学基金(30760226)

Study on population ecology of Ornithonyssus bacoti  in Yunnan, China

 HUANG Li-Qin, GUO Xian-Guo, REN Tian-Guang, WANG Jiao-Hua, WU Dian, YAN Yi   

  1. Laboratory of Vector and Pathogen,College of Basic Medicine, Dali University, Dali 671000,Yunnan Province, China
  • Received:2009-07-10 Online:2009-12-20 Published:2009-12-20
  • Contact: GUO Xian-guo, Email: xgguo2002@yahoo.com.cn

摘要:

  【摘要】 目的 了解云南省横断山区柏氏禽刺螨的地域及生境分布、优势宿主及其种群空间分布格局等。方法 选取云南省5个地理小区中的28个县(市)进行现场调查,每个小区按室内和室外两种生境诱捕小兽并采集体表革螨,70%乙醇固定,Hoyer液封片后于光学显微镜下鉴定种类。用负二项分布K值、聚块性指标m*/m、Taylor幂法则和Iwao模型法综合分析柏氏禽刺螨的空间格局。结果 在捕获的11 560只小兽(隶属于3目4科8属15种)体表共采集到柏氏禽刺螨3339只,28个县(市)中有21个县(市)采集到该螨,主要分布于西南区(占90%以上),室内(2914只,占87.27%)明显高于室外(425只,占12.73%)。在15种宿主中,90%的柏氏禽刺螨寄生于褐家鼠和黄胸鼠体表,为该螨的优势宿主。经聚集强度指标测定和回归分析均判定该螨为聚集分布。结论 柏氏禽刺螨是云南省境内的广布种,主要寄生于褐家鼠和黄胸鼠等家鼠体表,其在主要宿主动物之间的分布呈聚集分布格局。

关键词: 蜱螨亚纲, 柏氏禽刺螨, 种群生态学, 云南

Abstract:

  【Abstract】 Objective To investigate the geographical distribution, habitat, dominant hosts and population spatial distribution patterns of Ornithonyssus bacoti in Yunnan province.  Methods   A total of 28 counties in five zoogeographical sub?regions were chosen as the investigated sites. Each investigated site was divided into two habitats (indoors and outdoors) and then small mammal hosts were randomly captured by mouse traps. All the gamasid mites from the body surface of the hosts were collected and preserved in 70% ethanol. Hoyer’s medium was used to mount the mites onto glass slides and each mite specimen was finally identified by microscope. The spatial pattern of the mite was analyzed by K?value of negative binomial distribution, patchiness index, Taylor’s power function and Iwao’s model.  Results A total of 3339 O. bacoti were collected from 11 560 captured  small  mammal  hosts  which belonged to 3 orders 4 families 8 genera  and  15  species.  Of  the  investigated 28 counties, O. bacoti was found in 21 counties and the mites were collected from 15 species of small mammal hosts. O.bacoti mainly distributed in Southwest region (accounted for 90% of the total), and the quantity of O. bacoti in indoors (2914, 87.27%) were obviously higher than that in outdoors (425, 12.73%).  90% mites mainly parasitized on the body surface of Rattus norvegicus and R. tanezumi which were  the  dominant  host  of  mites.  The  results  showed  that  the  spatial  pattern  of  O. bacoti  was  an  aggregated  distribution. Conclusion O. bacoti  widely  distributes  in  Yunnan  province  and  mainly  parasitizes  on  the  body surface of R. norvegicus and R. tanezumi. It is of aggregated distribution among its main hosts.

Key words: Acari, Ornithonyssus bacoti, Population ecology, Yunnan

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