The interaction between spatially and temporally heterogenous selection: salmon as a model system

不同地点之间的迁徙可能会降低个体适应当地条件的可能性，也可能有助于将种群维持在特定地点。该项目将开发一套模型，以研究自然选择和在空间和时间上变化的迁徙之间的相互作用如何决定迁徙对当地人口的影响。这些模型将基于接受水产养殖（鱼类养殖）和孵化场（人工饲养的补充鱼类）投入的鲑鱼，因为许多类型的此类项目提供了关于经历不同（自然和人工）选择的种群之间交换的丰富数据信息源。虽然诸如人口规模、迁徙数量和选择变化等因素已经分别进行了探索，但这些因素如何相互作用以确定迁徙对当地人口的影响，这是本研究的核心问题，仍然未知。除了解决这个基本的科学问题外，这个项目的结果将与孵化场和水产养殖计划设计的紧迫问题相关。结果将为孵化场和水产养殖计划的设计提供信息，以保护鲑鱼这一重要的受威胁的自然资源。该项目还将通过研究生培训提供教育效益，这将具有更广泛的社会效益，因为联邦机构正在努力寻找受过定量海洋资源管理研究生培训的个人。

Movement between different locations might either reduce the potential for individuals to adapt to local conditions or help maintain a population at a given location. This project will develop a set of models to investigate how the interaction between natural selection and movement that vary in both space and time determines the effect of movement on local populations. These models will be based on salmon that receive inputs from aquaculture (fish farming) and hatcheries (supplemental fish raised in captivity), as the many types of such programs provide a data-rich source of information about exchange between populations that experience different (natural and artificial) selection. While factors such as population size, the amount of movement, and variation in selection have been explored separately, how these factors interact to determine the effect of movement on local populations, the central question of this study, remains unknown. In addition to addressing this fundamental scientific question, results of this project will be relevant to pressing questions about the design of hatchery and aquaculture programs. Results will inform the design of hatchery and aquaculture programs that allow for conservation of salmon, an important and threatened natural resource. The project will also provide an educational benefit through graduate student training, which will have a broader societal benefit as federal agencies are struggling to find individuals with postgraduate training in quantitative marine resource management.