Developing strategies for the protection of taxa consisting of interconnected sexual and parthenogenetic reproducing strains

科学：将开发一个模型，用于理解从双性起源群体到孤雌生殖先锋群体的基因流动，从而能够分析这种网络对遗传漂移现象的抵抗力。踏脚石生境的相关性第一次可以从总体上加以分析，因为潜在原产地和踏脚石生境都很稀缺，后者很容易通过其独特的特征(内陆微咸水遗址--稀缺，而且由于其以前作为盐源的重要性而得到充分的记载)来辨认。此外，还将安装一个模型，用于解开转向孤雌生殖的触发因素，以便进行基础分子生物学研究。社会/政策：通过了解起源于两性的种群与其孤雌生殖后代种群之间的联系，将量化它们之间保持基因流动的重要性，从而通过确定关键的垫脚石栖息地或重新建立遗传交换的直接措施来提高保护措施的效率。为保护区制定多用途管理计划，允许保护很大不同的物种群(在这种情况下是轮藻和鸟类)，将提高保护区的接受度和效率。关于本提案的目标物种，该项目将通过保护健康的水生生态系统的一个关键要素(生境工程师)来促进欧盟-水框架指令的要求，该要素被证明能够稳定已经恶化的系统的良好环境状况。

Scientific: a model for understanding gene-flow from bisexual populations of origin to parthenogenic pioneer populations will be developed, allowing analysis of resistance of such networks against genetic drift phenomena. For the first time, the relevance of stepping-stone habitats can be analysed in total because of the scarcity of potential populations of origin as well as stepping-stone habitats, the latter ones easy to be recognized by their peculiar characteristics (inland brackish water sites – scarce and, because of their former importance as a source of salt well documented). In addition, a model for unravelling the trigger for switching to parthenogenesis will be installed, allowing for basic molecular biology research. Societal/policy: By understanding the connectivity between the bisexual populations of origin and their parthenogenetic daughter populations the importance of keeping gene-flow between them will be quantified and, consequently, efficiency of conservation measures improved by identifying crucial stepping-stone habitats or, alternatively, direct measures to re-install genetic exchange. Developing multi-purpose management schemes for protected areas, allowing for protection of largely different species groups (in this case charophytes and birds) will increase acceptance and efficiency of protected areas. With respect to the target species of this proposal, the project will contribute to the requirements of the EU-Water Framework Directive by protection of a crucial element (habitat engineer) of healthy aquatic ecosystems, shown to be able to stabilize good environmental status of already deteriorated systems.