Gordon D M, Whitfield P J
Parasitology. 1985 Jun;90 ( Pt 3):421-31. doi: 10.1017/s0031182000055414.
This study was based on the experimental exposure of beetles to homologous and heterologous infections of Hymenolepis diminuta and Raillietina cesticillus. The results demonstrated that, for both species over the range of parasite densities employed, the presence of a primary infection had no effect on the establishment success of an homologous challenge infection. The establishment success of R. cesticillus cysticercoids was not affected by the presence of an H. diminuta infection. The existence of an R. cesticillus infection, however, severely reduced the establishment success of an H. diminuta infection. The reduction in H. diminuta establishment was greatest in R. cesticillus infections less than 10 days old. The plausibility of some of the mechanisms that are potentially responsible for the reduction in H. diminuta establishment success is discussed, as is the possible ecological significance of these results.
本研究基于将甲虫暴露于微小膜壳绦虫和缩小膜壳绦虫的同源和异源感染实验。结果表明，在所采用的寄生虫密度范围内，对于这两个物种而言，初次感染的存在对同源攻击感染的建立成功率没有影响。缩小膜壳绦虫的囊尾蚴的建立成功率不受微小膜壳绦虫感染的影响。然而，缩小膜壳绦虫感染的存在严重降低了微小膜壳绦虫感染的建立成功率。在小于10日龄的缩小膜壳绦虫感染中，微小膜壳绦虫建立的减少最为显著。本文讨论了一些可能导致微小膜壳绦虫建立成功率降低的潜在机制的合理性，以及这些结果可能的生态意义。
