Tiar G, Tiar-Saadi M, Benyacoub S, Rouag R, Široký P
Department of Biology, Faculty of Natural and Life Sciences, University Chadli Bendjedid, El Tarf, Algeria.
Research Laboratory for the Ecology of Terrestrial and Aquatic Systems, University Badji Mokhtar, Annaba, Algeria.
Med Vet Entomol. 2016 Sep;30(3):351-9. doi: 10.1111/mve.12175. Epub 2016 May 24.
Hyalomma aegyptium (Linnaeus, 1758) (Ixodida: Ixodidae) has recently been confirmed as a carrier of numerous pathogenic, including zoonotic, agents. Four environmentally distinct regions of Algeria, located between the humid coastal zone and the arid Saharan Atlas range, were selected in order to compare differences in tick abundance among localities, and the correlations between tick abundance and host population characteristics and other environmental conditions. Sampling was carried out during May and early June in 2010-2012. A total of 1832 H. aegyptium were removed from 201 tortoises. Adult ticks accounted for 52% of the collection. In the pre-adult stages, larvae were dominant. Data on prevalence, intensity (mean ± standard deviation, range) and abundance of tick infestation were calculated for each locality. Locally, prevalences reached 100%. The sex ratio was biased in favour of males (4.2). Intensities of infestation differed significantly among the localities studied for all developmental stages of the tick. The intensity of infestation by adult ticks was positively correlated to the size of the tortoise and with tortoise population density in the habitat. However, findings for immature tick stages were independent of both variables. No significant correlations between infestation intensities and the climatic parameters tested were found. Immature ticks were observed to prefer the front parts of their tortoise hosts, whereas the majority of adults were attached to the rear parts.
埃及璃眼蜱（Hyalomma aegyptium，林奈，1758年）（蜱螨目：硬蜱科）最近已被确认为多种病原体（包括人畜共患病原体）的传播媒介。为了比较不同地点蜱虫丰度的差异，以及蜱虫丰度与宿主种群特征和其他环境条件之间的相关性，在阿尔及利亚位于湿润沿海地区和干旱撒哈拉阿特拉斯山脉之间的四个环境不同的区域进行了研究。采样于2010 - 2012年5月和6月初进行。从201只乌龟身上共采集到1832只埃及璃眼蜱。成年蜱占采集总数的52%。在未成熟阶段，幼虫占主导。计算了每个地点蜱虫感染的患病率、感染强度（平均值±标准差，范围）和丰度。在当地，患病率达到100%。性别比偏向雄性（4.2）。在所研究的蜱虫所有发育阶段中，不同地点的感染强度存在显著差异。成年蜱的感染强度与乌龟的大小以及栖息地中乌龟的种群密度呈正相关。然而，未成熟蜱阶段的结果与这两个变量均无关。未发现感染强度与所测试的气候参数之间存在显著相关性。观察到未成熟蜱更喜欢附着在乌龟宿主的前部，而大多数成年蜱则附着在后部。
