云南省维西县碧罗雪山周边地带医学革螨生态位研究  

Study on the ecological niche of medical gamasid mites in the surrounding areas of Biluoxueshan Mountain in Weixi county Yunnan province

作　　者：任天广[1] 郭宪国[1] 李伟[1] 吴滇[1] 王乔花[1] 

机构地区：[1]大理学院病原与媒介生物研究所,云南大理671000

出　　处：《中国媒介生物学及控制杂志》2010年第2期117-120,共4页Chinese Journal of Vector Biology and Control

基　　金：国家自然科学基金(30760226)~~

摘　　要：目的应用现代生态学中生态位的理论和方法,对云南省维西县碧罗雪山周边地带11种医学革螨在39种小兽宿主资源上的生态位宽度和生态位重叠进行研究。方法生态位宽度用Levins模型测定;生态位重叠用Colwell-Futuyma模型测定,并在此基础上用系统聚类分析进行生态位重叠群的划分。结果(1)11种革螨中,互助真厉螨及巴氏下盾螨的生态位最宽,分别为0.1067和0.1044,特氏厉螨及三峡血革螨的生态位最窄,分别为0.0390和0.0365;(2)特氏厉螨与土尔克厉螨的种群分布相似性及金氏厉螨、橄形血革螨与巴氏下盾螨的种群分布相似性大。结论生态位宽度可以作为评价革螨宿主特异性的定量指标,革螨种群分布的相似性与其宿主的相似性程度有着很大的关系,并受其动物分类学远近的影响。Objective To determine the niche breadth and overlap in eleven dominant species of gamasid mites parasitic on 39 species of small-mammal hosts around Biluoxueshan Mountain in Weixi,Yunnan. Methods The niche breadth was determine using the Levins model,the niche overlap the Colwell-Futuyma model,based on which the systematic grouping of niche overlap for all gamasid mites was completed by cluster analysis. Results （1） Eulaelaps huzhuensis and Hypoaspis pavlovskii had the widest niche breadth （0.1067 and 0.1044）,while Laclaps traubi Domrow and Haemogamasus sanxiaensis had the narrowest （0.0390 and 0.0365）. （2）L. traubi Domrow and L. turkestanicus shared a highly similar population distribution with L. chin,Ha. oliviformis and Hy. pavlovskii. Conclusion The niche breadth could be used as an index for evaluating the host specificity of gamasid mites,whose similarity in population distribution was largely related to that of their hosts,as well as their taxonomic distance.

关 键 词：蜱螨亚纲 医学革螨 生态位 系统聚类 小兽 

分 类 号：R384.4[医药卫生—医学寄生虫学]