Parasites and the Amazon molly: a role for the Red Queen?

寄生虫和亚马逊莫莉：红皇后的角色？

• 批准号: 5434911
• 负责人: Professor Dr. Ingo Schlupp
• 金额: --
• 依托单位: Department of Biology
• 依托单位国家: 德国
• 项目类别: Research Grants
• 财政年份: 2004
• 资助国家: 德国
• 起止时间: 2003-12-31 至 2005-12-31
• 项目状态: 已结题
• 来源: https://gepris.dfg.de/gepris/projekt/5434911?language=en
• 关键词: Parasites; Amazon; molly; role; Red

We want to study the role of parasites in the maintenance of the mating system of the asexual Amazon molly. We apply the idea that a "Red Queen" like coevolutionary arms race might be providing a significant benefit for the sexual species. To tackle this problem we want to compare the parasite loads of asexual and sexual mollies, which live in identical habitats. The project proposed here will continue a study that was started in the fall of last year. To complete the study we plan to sample populations of P.formosa and P.latipinna in Texas (USA). We will determine parasite loads using standard techniques available in fish parasitology and use the data to make comparisons on three levels: (1) compare the sites before and after winter, (2) compare the asexual Amazon molly (P.formosa) and the sexual P.latipinna with respekt to parasite load (this will be the main comparison), and finally compare the sampled populations. The parasitological data will be supplemented by data on ecology and behavior of the species in relation to parasite load. Only very few studies have so far used this theoretical framework for direct comparisons of a sexual and an asexual species, and we expect a number of high ranking publications to result from this study.

我们想研究寄生虫在维持无性繁殖的亚马逊莫莉的交配系统中的作用。我们应用的想法，“红皇后”一样的共同进化军备竞赛可能会提供一个显着的好处，为性物种。为了解决这个问题，我们想比较生活在相同栖息地的无性繁殖和有性繁殖的莫莉的寄生虫负荷。这里提议的项目将继续去年秋季开始的一项研究。为了完成这项研究，我们计划在德克萨斯州（美国）对福尔摩沙和宽鳍梭子蟹种群进行采样。我们将使用鱼类寄生虫学的标准技术确定寄生虫负荷，并使用数据进行三个层面的比较：（1）冬季前后的比较，（2）无性繁殖的亚马逊莫莉（P.福尔摩沙）和有性繁殖的宽鳍亚马逊莫莉（P.latipinna）与寄生虫负荷的比较（这将是主要的比较），最后比较采样种群。寄生虫学数据将由与寄生虫负荷有关的物种生态和行为数据补充。到目前为止，只有很少的研究使用这种理论框架来直接比较有性和无性物种，我们预计这项研究会产生一些高排名的出版物。