Rohde K, Worthen W B, Heap M, Hugueny B, Guégan J F
Division of Zoology, School of Biological Sciences, University of New England, Armidale, NSW, Australia.
Int J Parasitol. 1998 Apr;28(4):543-9. doi: 10.1016/s0020-7519(98)00013-7.
Assemblages of metazoan ectoparasites of 79 species and gastrointestinal helminths of eight species of marine fishes were analysed to examine whether nestedness is related to sample size, abundance, species richness, and prevalence of infection, and whether the use of z-scores or Monte Carlo simulations yields different results. No significant differences in the number of nested assemblages were found with the two methods, and neither sample size nor abundance, but prevalence of infection of ectoparasites was correlated with nestedness. Species richness was significantly correlated with nestedness only when fish species with fewer than three parasite species were not excluded. Differential colonisation probabilities are the most likely cause of nestedness.
分析了79种海洋鱼类的后生动物体外寄生虫组合和8种海洋鱼类的胃肠蠕虫，以研究嵌套性是否与样本大小、丰度、物种丰富度和感染率有关，以及使用z分数或蒙特卡罗模拟是否会产生不同的结果。两种方法在嵌套组合数量上没有发现显著差异，样本大小和丰度均与嵌套性无关，但体外寄生虫的感染率与嵌套性相关。只有在不排除寄生虫种类少于三种的鱼类物种时，物种丰富度才与嵌套性显著相关。不同的定殖概率是嵌套性最可能的原因。
