Collaborative Research: Dispersion and Ecological Interactions of Clonal and Sexual Fish in a Successional Landscape

Schlosser，约翰逊长老DEB-9973357 PI的建议，以检查自然干扰的影响与海狸池塘演替的空间变异的丰富的克隆鱼类谱系。 PI将解决三大目标。 首先，他们将确定与水文变异和海狸池塘演替相关的干扰机制是否产生了可预测的克隆丰度和扩散模式。 其次，他们将测试的假设，在海狸池塘，竞争的相互作用是较弱的地区，以前的转变，营养形态和资源利用发生了由于历史上高克隆丰度。 第三，他们将通过实验评估克隆鱼和有性繁殖鱼对与海狸池塘演替相关的温度和缺氧应激的反应。 这些结果将提高我们对地理环境差异如何影响鱼类群落结构的理解，并将为人类主导的景观中克隆生物的干扰和引入如何影响水生脊椎动物提供见解。

Schlosser, Johnson & Elder DEB-9973357 The PI's propose to examine the influence of natural disturbances associated with beaver pond succession on spatial variation in the abundance of a clonal fish lineage. The PI's will address three broad objectives. First, they will determine if disturbance regime associated with hydrological variability and beaver pond succession has created predictable patterns of clone abundance and dispersal. Second, they will test the hypothesis that within beaver ponds, competitive interactions are weaker in areas where previous shifts in trophic morphology and resource use have occurred due to historically high clone abundance. Third, they will experimentally evaluate the response of clonal and sexual fish to temperature and hypoxic stress associated with beaver pond succession. These results will enhance our understanding of how geographic environmental differences influence the structure of fish communities and will provide insights into how disturbance and the introduction of clonal organisms in human dominated landscapes can impact aquatic vertebrates.