U.S.A. - Iceland International Research Planning Visit: Interactive Effects of Climate Warming and Nutrient Enrichment on Stream Ecosystems

OISE 0848479Benstead通过这次规划访问研究人员Wyatt F.蒙大拿州州立大学的克罗斯和亚拉巴马大学的乔纳森·P·本斯特德将与冰岛大学的吉斯利·吉斯拉森和雷克雅未克淡水渔业研究所的乔恩·奥拉夫松合作启动一个国际河流生态系统项目。美国队？冰岛在定量食物网分析和生态化学计量学方面的优势与冰岛的合作伙伴互补？深入了解冰岛的蒸汽和河流动物群、气候问题和景观。 他们的目标是改进后勤工作，并制定计划，在冰岛独特的地热环境中观察选定的实地地点，进行为期三年的研究，研究温度和营养物质浓度如何影响淡水生态系统。预期长期合作的结果将提高我们对中高纬度淡水系统生态变化主要驱动因素的复杂和互动影响的基本理解。如果成功，我们应该获得新的，客观的信息，在生物体水平的生理变化如何影响新兴的社区和生态系统水平的属性。 研究结果可能有助于为政策提供信息，改善富营养化管理，并对未来淡水供应和社会使用产生影响。 这次研究访问实现了通过使美国和欧洲的专家共享研究资源并在共同感兴趣和能力强的领域规划有益项目来推进淡水生态学基础知识的计划目标。 更广泛的影响包括通过在冰岛提供合作实地工作的早期职业介绍来培训美国研究生，冰岛是世界上少数几个在相对较小的地理区域内可以实现本研究的组成部分的地方之一。

OISE 0848466CrossOISE 0848479BensteadThrough this planning visit researchers Wyatt F. Cross of Montana State University and Jonathan P. Benstead from the University of Alabama will initiate an international stream ecosystem project with partners, Gisli Gislason at the University of Iceland and Jon Olafsson at the Institute of Freshwater Fisheries in Reykjavik. The U.S. team?s strengths in quantitative food web analysis and ecological stoichiometry complement the Icelandic partners? deep knowledge of steam and river fauna, climate issues, and landscapes in Iceland. Their goal is to refine logistics and develop plans for observing selected field sites in the unique geothermal environments of Iceland for a three-year study of how temperature and nutrient concentrations affect freshwater ecosystems. Results from the intended long-term collaboration are expected to improve our fundamental understanding of the complex and interactive effects of major drivers of ecological change in mid-to-high latitude freshwater systems. If successful, we should gain new, objective information about how physiological changes at the organism level affect emergent community and ecosystem level properties. Results may help inform policies and improve management of eutrophication, with implications for the future provision of freshwater and societal use. This research visit fulfills the program objective of advancing basic knowledge of fresh water ecology by enabling experts in the United States and Europe to share research resources and plan beneficial projects in areas of strong mutual interest and competence. Broader impacts include the training of U.S. graduate students by providing an early career introduction to collaborative field work in Iceland, which is one of the few places in the world where the components of this research are achievable within a relatively small geographic area.