Collaborative Research: Interacting Effects of Local Demography and Larval Connectivity on Estuarine Metapopulation Dynamics

合作研究：当地人口统计和幼虫连通性对河口种群动态的相互作用

• 批准号: 1155497
• 负责人: Elizabeth North
• 金额: $ 17.58万
• 依托单位: University of Maryland Center for Environmental Sciences
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2012
• 资助国家: 美国
• 起止时间: 2012-03-15 至 2016-02-29
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1155497&HistoricalAwards=false
• 关键词: Collaborative; Research; Interacting; Effects; Local

Intellectual Merit: The PIs will use the eastern oyster (Crassostrea virginica) in Pamlico Sound, North Carolina, as a model system and will attempt to optimize the design of networks of no-take reserves as a strategy for maintaining metapopulations of this commercially harvested species. The project specifically recognizes that network persistence depends on (1) the potential for growth, survival, and reproduction within reserves, and (2) the potential to distribute offspring among reserves. Thus, demographic processes within reserves and settling areas play important roles, along with variability of physical transport. The PIs plan to: (1) test and refine 3D bio-physical models of connectivity due to oyster larval transport in a shallow, wind-dominated system; (2) test, refine, and apply technology to detect natal origins of larvae using geochemical tags in larval shell; and (3) integrate regional connectivity and demographic rates to model metapopulation dynamics. Broader Impacts: This study will produce new tools and test and refine others used for studying larval connectivity, a fundamentally important process in the maintenance of natural populations, and thus in biological conservation and resource management. The tools include a hydrodynamic modeling tool coupled with an open-source particle tracking model that will be available on-line with computer code and user guide. The project will use integrated modeling approaches to evaluate the design of reserve networks: results will be directly useful to improving oyster and ecosystem-based management in Pamlico Sound, and the methods will inform approaches to network design in other locations. There is extensive education and outreach in the form of training undergraduate and graduate students, mentoring post-docs, and providing hands-on research opportunities for high school students and their teachers.

知识分子的优点：PIS将在北卡罗来纳州Pamlico Sound中使用东部牡蛎（Crassostrea virginica）作为模型系统，并将试图优化无捕捞储量网络的设计，以维持这种商业上收获的物种的体积。 该项目特别认识到网络持久性取决于（1）储备金内的增长，生存和繁殖的潜力，以及（2）在储备金之间分配后代的潜力。因此，储备金和定居区域内的人口统计过程以及物理运输的变化都起着重要作用。 PIS计划：（1）在浅，风为主导的系统中，由于牡蛎幼虫的运输而导致的3D生物形态模型； （2）使用幼虫外壳中的地球化学标签测试，完善和应用技术来检测幼虫的出生起源； （3）将区域连通性和人口统计学速率整合到模型的跨群体动力学。更广泛的影响：这项研究将生产新的工具，测试和完善其他用于研究幼虫连接性的其他工具，这是维持自然人群的根本重要过程，从而在生物保护和资源管理中。 这些工具包括一个流体动力建模工具，再加上开源粒子跟踪模型，该模型将在线使用计算机代码和用户指南。该项目将使用集成的建模方法来评估储备网络的设计：结果将对改善Pamlico Sound的牡蛎和基于生态系统的管理直接有用，这些方法将为其他位置的网络设计提供信息。 培训本科生和研究生，指导后培训，并为高中生及其老师提供动手研究机会。