瑞典南部水田鼠体内（线虫纲：旋尾目）的季节性变化

Seasonal variation of (Nematoda: Spirurida) in the water vole from southern Sweden.

作者信息

Neupane B, Miller A L, Evans A L, Olsson G E, Höglund J

机构信息

Tribhuvan University, Institute of Forestry, Department of Park Recreation and Wildlife Management, Pokhara, Nepal.

Swedish University of Agricultural Sciences, Department of Biomedical Sciences and Veterinary Public Health, Section for Parasitology, Box 7036, Uppsala, 750 07, Sweden.

出版信息

J Helminthol. 2018 Oct 29;94:e6. doi: 10.1017/S0022149X18000937.

DOI:10.1017/S0022149X18000937

PMID:30369337

Abstract

This study focused on the spirurid nematode Mastophorus muris in water voles (Arvicola amphibius) trapped in three regions in southern Sweden during spring and fall 2013. The collection of water voles formed part of a larger project (EMIRO) on the cestode Echinococcus multilocularis in rodents. The voles' stomach contents were examined for the presence of M. muris. Prevalence, mean abundance and mean intensity of infection were calculated. A generalized linear model model was used to examine the effects of sex, functional group, season and region on the number of M. muris individuals in each vole. Forty-seven of 181 (26%) voles were infected with M. muris, with up to 74 worms each. The overall mean intensity (worms per infected vole) was 15 (95% CI 10-21), and abundance (mean number of worms in all voles) was 4 (95% CI 2-6). Model output indicated a significant effect of season and region with respect to abundance of nematode infection, which was independent of sex and functional group of the investigated host.

摘要

本研究聚焦于2013年春秋两季在瑞典南部三个地区捕获的水田鼠（Arvicola amphibius）体内的旋尾线虫——鼠 Mastophorus muris。水田鼠的采集是关于啮齿动物体内多房棘球绦虫的一个更大项目（EMIRO）的一部分。检查了水田鼠的胃内容物中是否存在鼠 Mastophorus muris。计算了感染率、平均丰度和平均感染强度。使用广义线性模型来研究性别、功能组、季节和地区对每只水田鼠体内鼠 Mastophorus muris 个体数量的影响。181只水田鼠中有47只（26%）感染了鼠 Mastophorus muris，每只最多有74条虫。总体平均感染强度（每只感染水田鼠的虫数）为15（95%置信区间10 - 21），丰度（所有水田鼠体内虫的平均数）为4（95%置信区间2 - 6）。模型输出表明，季节和地区对线虫感染丰度有显著影响，这与所研究宿主的性别和功能组无关。