Seville R S
Department of Zoology and Physiology, University of Wyoming/Casper College Center, Casper 82601, USA.
J Parasitol. 1997 Feb;83(1):166-8.
Feces collected from live-trapped black- (Cynomys ludovicianus) and white-tailed prairie dogs (Cynomys leucurus) from central and southeastern Wyoming were examined to determine the presence and prevalence of eimerian species. Six species (Eimeria adaensis [black-tailed prairie dog prevalence = 33%, white-tailed prairie dog prevalence = 51%], Eimeria beecheyi [8%, 28%], Eimeria callosper-mophili [64%, 71%], Eimeria lateralis [3%, 7%], Eimeria morainensis [19%, 8%], and Eimeria spermophili [2%, 1%]) were identified from both host species. Eimeria pseudospermophili was found infecting only black-tailed (prevalence = 1%) and Eimeria bilamellata only in white-tailed prairie dogs (2%). Reinfections in individual hosts were observed with E. callospermophili and E. adaensis. Comparison of these results with the published literature suggests that the host genera Cynomys and Spermophilus share a common guild of eimerians and that members of this guild have a long evolutionary association with these hosts, or host switching, or both, is common between these groups.
对从怀俄明州中部和东南部通过活捉获得的黑尾草原犬鼠（黑尾土拨鼠，学名：Cynomys ludovicianus）和白尾草原犬鼠（白尾土拨鼠，学名：Cynomys leucurus）的粪便进行检查，以确定艾美球虫种类的存在情况和流行率。从这两种宿主物种中鉴定出了六种艾美球虫（阿达艾美球虫[黑尾草原犬鼠流行率=33%，白尾草原犬鼠流行率=51%]、贝氏艾美球虫[8%，28%]、嗜黄鼠艾美球虫[64%，71%]、外侧艾美球虫[3%，7%]、莫拉艾美球虫[19%，8%]和黄鼠艾美球虫[2%，1%]）。发现伪嗜黄鼠艾美球虫仅感染黑尾草原犬鼠（流行率=1%），双瓣艾美球虫仅感染白尾草原犬鼠（2%）。在个体宿主中观察到嗜黄鼠艾美球虫和阿达艾美球虫的再次感染。将这些结果与已发表的文献进行比较表明，草原犬鼠属（Cynomys）和黄鼠属（Spermophilus）宿主共享一个常见的艾美球虫类群，并且该类群的成员与这些宿主有着长期的进化关联，或者在这些群体之间宿主转换很常见，或者两者兼而有之。
