Atkinson D
Department of Environmental and Evolutionary Biology, University of Liverpool, U.K.
J Theor Biol. 1991 May 21;150(2):251-60. doi: 10.1016/s0022-5193(05)80336-4.
Hamilton & Zuk (1982, Science 218, 384-387.) produced a model of sexual selection in which coevolutionary cycles of host and parasites generate consistently positive correlations between parent and offspring viability, and that animals choose mates for genetic disease resistance by scrutinizing characters whose full expression is dependent on health and vigour. They predicted a positive correlation between sexual showiness and parasite burden across species, and a negative correlation within a species. First, recent suggestions that interspecific correlations in the opposite direction to that indicated above are consistent with the mechanisms of Hamilton & Zuk's model are discussed. Second, it is shown that the model's predictions can be produced by heritable variation maintained by non-parasite fluctuating selection. In this case, the parasites associated with degree of sexual showiness are those able to amplify any initial heritable differences in vigour. Alternative sources of positive correlation between parent and offspring viability, which include the indirect effects of climatic change and exclude the need for host-parasite coevolutionary cycles, are also proposed.
汉密尔顿和祖克（1982年，《科学》218卷，384 - 387页）提出了一种性选择模型，在该模型中，宿主与寄生虫的协同进化周期在亲代和子代的生存能力之间产生持续的正相关，并且动物通过审视那些完全表达依赖于健康和活力的特征来选择具有遗传疾病抗性的配偶。他们预测，跨物种的性炫耀程度与寄生虫负荷之间存在正相关，而在物种内部存在负相关。首先，讨论了最近的一些观点，即与上述方向相反的种间相关性与汉密尔顿和祖克模型的机制是一致的。其次，表明该模型的预测可以由非寄生虫波动选择维持的可遗传变异产生。在这种情况下，与性炫耀程度相关的寄生虫是那些能够放大活力方面任何初始可遗传差异的寄生虫。还提出了亲代和子代生存能力之间正相关的其他来源，其中包括气候变化的间接影响，并且排除了宿主 - 寄生虫协同进化周期的必要性。
