Kloch Agnieszka, Bajer Anna
Institute of Environmental Sciences, Jagiellonian University, Kraków, Poland.
Acta Parasitol. 2012 Mar;57(1):13-9. doi: 10.2478/s11686-012-0006-9. Epub 2012 Feb 25.
Cryptosporidium is an intestinal protozoan parasite prevalent in a wide range of mammals. Although it has been recorded in many hosts, its impact on endangered species is poorly understood. Here we present a preliminary study of four populations of the highly threatened spotted souslik (Spermophilus suslicus), living in the westernmost part of the species range. The populations inhabit fragmented habitats and suffer from loss of genetic variation. An IFA test revealed that 35.9% of sampled animals (41/114) was infected with Cryptosporidium and none with Giardia. The prevalence and infection intensity differed among the populations. In areas grazed by cattle it was about 3 folds higher, which suggests a possible transmission route. To the authors best knowledge the present study is the first report of Cryptosporidium infections in S. suslicus.
隐孢子虫是一种在多种哺乳动物中普遍存在的肠道原生动物寄生虫。尽管它已在许多宿主中被记录，但人们对其对濒危物种的影响了解甚少。在此，我们对生活在该物种分布最西端的四个极度濒危的斑纹黄鼠（Spermophilus suslicus）种群进行了初步研究。这些种群栖息在碎片化的栖息地中，并且存在遗传变异丧失的问题。一项间接免疫荧光试验显示，35.9%的采样动物（41/114）感染了隐孢子虫，而感染贾第虫的动物为零。不同种群之间的感染率和感染强度有所不同。在有牛放牧的地区，感染率大约高出3倍，这表明了一种可能的传播途径。据作者所知，本研究是关于斑纹黄鼠感染隐孢子虫的首次报道。
