Sall-Dramé R, Brouat C, Bâ C T, Duplantier J M
IRD (UR 022), Centre de Biologie et de Gestion des Populations, BP 1386, Dakar, CP 18524, Senegal/Département de Biologie Animale, Faculté des Sciences et Techniques, Université Cheikh Anta Diop, Dakar, Senegal.
J Parasitol. 2010 Aug;96(4):675-80. doi: 10.1645/GE-2437.1.
We studied patterns of variation in cestode communities of 3 abundant rodent species that live in sympatry in the Niayes of the Retba Lake, Western Senegal. We evaluated whether the host species have the same parasites and, within host species, whether the variability in parasite community is related to intrinsic (sex, age of the host individual) or extrinsic (habitat, season) factors. Arvicanthis niloticus was parasitized by 2 cestode species, namely Inermicapsifer madagascariensis and the highly dominant Raillietina trapezoïdes . Raillietina baeri was the only cestode species found in Mastomys erythroleucus , and there was no cestode in M. huberti . Prevalence and abundance levels of cestodes were very high in A. niloticus , especially in adults. Seasonal and habitat effects were found in both cestode communities of M. erythroleucus and A. niloticus . Local host specificity and abundance/prevalence levels suggested variations in the interaction between rodents and cestode intermediate host species among habitats and seasons.
我们研究了生活在塞内加尔西部雷特巴湖尼亚耶斯地区同域分布的3种常见啮齿动物的绦虫群落变异模式。我们评估了宿主物种是否具有相同的寄生虫，以及在宿主物种内部，寄生虫群落的变异性是否与内在因素（宿主个体的性别、年龄）或外在因素（栖息地、季节）相关。尼罗多齿鼠被2种绦虫寄生，即马达加斯加无棘绦虫和高度占优势的梯形瑞列绦虫。巴氏瑞列绦虫是在红背肥鼠中发现的唯一绦虫物种，而休氏肥鼠体内未发现绦虫。尼罗多齿鼠体内绦虫的感染率和丰度水平非常高，尤其是在成年个体中。在红背肥鼠和尼罗多齿鼠的绦虫群落中均发现了季节性和栖息地效应。局部宿主特异性以及丰度/感染率水平表明，啮齿动物与绦虫中间宿主物种之间的相互作用在不同栖息地和季节存在差异。
