Department of Biology, Faculty of Science, University of Hail, Hail, Saudi Arabia,
Environ Sci Pollut Res Int. 2014 Sep;21(17):10120-8. doi: 10.1007/s11356-014-3016-3. Epub 2014 May 20.
Ectoparasitic arthropods are a diverse element of the Saudi fauna. Due to this, a survey of ectoparasites associated with rodents was conducted as a preliminary study in five districts of Hail region of northern Saudi Arabia for the first time. Ectoparasites extracted from 750 rodents were sampled and identified by recording their frequency of appearance. Results revealed that 1,287 ectoparasites infested 316 of the captured rodent hosts. These ectoparasites parasitized on four species of rodents including three species of rats Rattus rattus rattus, Rattus rattus frugivorus, and Rattus rattus alexandrinus and one species of mouse Acomys dimidiatus (Rodentia: Muridae). The ectoparasites belong to four different groups: ticks, fleas, lice, and mites. Ticks were the highest in the number, while fleas were the lowest among all the extracted ectoparasite groups. The collected ectoparasitic arthropods consisted of seven species. Ticks were of two species: Rhipicephalus turanicus and Rhipicephalus sanguineus (Acari: Ixodidae), fleas were of two species: Xenopsylla cheopis and Xenopsyllus conformis mycerini (Siphonaptera: Pulicidae), lice was a single species: Polyplax serrata (Anoplura: Hoplopleuridae), and mites were of two species: Laelaps nuttali and Laelaps echidninus (Mesostigmata: Laelapidae). The findings of the study showed that the intensity of infestation was varied between rodent host sexes, wherein females had the highest rate of parasitic infestation, and the parasitic index of appearance was very high for one group of parasites (i.e., ticks). The parasitic prevalence was 42.13 % on rodents, and mites were the most prevalent parasite species. Overall, this study was carried out to establish baseline data for ectoparasite-infested rodents in Hail region, Saudi Arabia, and may help for appropriate planning to control zoonotic diseases in this area.
沙特的节肢动物外寄生虫种类繁多。因此,我们首次在沙特北部哈伊勒地区的五个地区对与啮齿动物有关的外寄生虫进行了调查,作为初步研究。从 750 只啮齿动物中提取外寄生虫并进行采样,通过记录其出现频率来鉴定。结果表明,有 1287 只外寄生虫寄生在 316 只捕获的啮齿动物宿主身上。这些外寄生虫寄生在四种啮齿动物上,包括三种鼠类(Rattus rattus rattus、Rattus rattus frugivorus 和 Rattus rattus alexandrinus)和一种沙鼠(Acomys dimidiatus)(啮齿目:鼠科)。外寄生虫属于四个不同的组:蜱、跳蚤、虱子和螨虫。蜱的数量最多,而所有提取的外寄生虫组中跳蚤的数量最少。收集到的节肢动物外寄生虫包括七种。蜱有两种:钝缘蜱(Rhipicephalus turanicus)和血红扇头蜱(Rhipicephalus sanguineus)(蜱螨目:硬蜱科),跳蚤有两种:谢氏璃眼蜱(Xenopsylla cheopis)和谢氏璃眼蜱突眼亚种(Xenopsyllus conformis mycerini)(蚤目:角叶蚤科),虱子有一种:美洲大蠊(Polyplax serrata)(食毛目:鳖虱科),螨虫有两种:纳氏钝缘蜱(Laelaps nuttalli)和食虫沟硬蜱(Laelaps echidninus)(中气门目:钝缘蜱科)。研究结果表明,啮齿动物宿主的性别之间寄生强度存在差异,其中雌性的寄生感染率最高,一组寄生虫(即蜱)的寄生指数非常高。啮齿动物的寄生虫感染率为 42.13%,螨虫是最常见的寄生虫种类。总的来说,这项研究旨在为沙特哈伊勒地区寄生啮齿动物的外寄生虫建立基线数据,并可能有助于在该地区对人畜共患病进行适当的规划和控制。