Riggs M R, Lemly A D, Esch G W
Department of Biology, Wake Forest University, Winston-Salem, North Carolina 27109.
J Parasitol. 1987 Oct;73(5):893-900.
An investigation of differences in growth, maturation, biomass, and fecundity of Bothriocephalus acheilognathi in 3 host species was conducted on metapopulations from 3 distinct communities in Belews Lake, North Carolina. The results indicated that host-specific differences in growth and biomass were additive among metapopulations from different localities. However, species-specific differences in maturation and fecundity exhibited differential variation between the sites. These site X host interactions were related to host-specific differences in bioaccumulation of selenium at sites that were exposed to effluent from a coal-fired power plant. Significant (alpha = 0.001) statistical associations were observed between selenium concentration in tapeworm tissue and fecundity measures. The results of this study demonstrate that host suitability is determined by morphological, physiological, and behavioral differences in the host species which affect transmission dynamics and the quality and stability of the enteric environment.
对来自北卡罗来纳州贝勒夫斯湖3个不同群落的集合种群，开展了对3种宿主物种中的鲚头槽绦虫生长、成熟、生物量和繁殖力差异的调查。结果表明，不同地点集合种群间，宿主特异性的生长和生物量差异具有累加性。然而，成熟和繁殖力的物种特异性差异在各地点间表现出不同变化。这些地点X宿主的相互作用，与燃煤电厂废水排放地点的宿主特异性硒生物累积差异有关。在绦虫组织中的硒浓度与繁殖力指标之间，观察到显著（α = 0.001）的统计关联。本研究结果表明，宿主适宜性由宿主物种的形态、生理和行为差异决定，这些差异影响传播动态以及肠道环境的质量和稳定性。
