Haukisalmi V, Henttonen H, Tenora F
J Wildl Dis. 1987 Apr;23(2):233-41. doi: 10.7589/0090-3558-23.2.233.
We have studied helminths from 532 grey-sided voles (Clethrionomys rufocanus) in two localities in northern Finland, representing different biogeographic zones, during 1978-1983. The helminth communities in the two study areas were similar, characterized by a small number of species (eight) compared to eastern Siberia and Japan, and by the dominance of a single anoplocephalid cestode Andrya kalelai. The prevalence of this helminth varied significantly among habitats, possibly because of differences in the distribution and abundance of the intermediate hosts, oribatid mites. Vole density did not explain the habitat differences in A. kalelai, nor did the prevalence of A. kalelai increase between 2 yr of sustained high density in the host population. A between-year increase in the prevalence of the larval cestode Taenia tenuicollis at Kilpisjärvi was probably due to a simultaneous increase in the abundance of its definitive hosts, mustelids. The prevalence of A. kalelai was always higher in males; no sexual differences were detected in the larval T. tenuicollis.
1978年至1983年期间，我们在芬兰北部代表不同生物地理区域的两个地点，对532只灰侧田鼠（棕背䶄）体内的蠕虫进行了研究。两个研究区域的蠕虫群落相似，与东西伯利亚和日本相比，物种数量较少（8种），且以单一的无钩绦虫安德丽绦虫占主导。这种蠕虫的感染率在不同栖息地之间存在显著差异，这可能是由于中间宿主甲螨的分布和数量不同所致。田鼠密度并不能解释安德丽绦虫在不同栖息地的差异，而且在宿主种群持续高密度的两年间，安德丽绦虫的感染率也没有增加。基尔皮斯耶尔维的细颈绦虫幼虫感染率逐年上升，这可能是由于其终末宿主鼬科动物数量同时增加所致。雄性安德丽绦虫的感染率总是更高；细颈绦虫幼虫未检测到性别差异。
