Re-visiting "The Limnology of Tundra Ponds": Re-sampling historic sites to track global change in Arctic aquatic ecosystems.

该奖项是根据2009年《美国复苏和再投资法案》(公法111-5)资助的。该项目涉及对阿拉斯加州巴罗附近冻土带的几个小池塘进行重新采样，这些池塘在20世纪70年代初作为国际生物项目(IBP)的一部分进行了深入研究。冻土带生物群计划。这项建议的主要目的是对历史遗迹进行重新采样，并结合其他采样方法，确定阿拉斯加S沿海平原冻土带池塘的物理、化学和生物环境是否因最近的变暖和/或人为变化而发生变化。主要活动将包括：1.对IBP冻土带池塘进行重新采样，以获取物理、化学和生物变量，上次调查是在近40年前。2.将目前受气候变暖和发展侵蚀影响的IBP冻土带池塘与该区域的类似生境进行比较，以确定它们是否代表了长期监测的最佳区域地点，或者它们是否受到了开发的过度影响。3.研究在几种可能的变暖情景下冻土带池塘生态系统变化的可能驱动因素。4.建立用于连续测量感兴趣参数的新协议。5.对下一代极地科学家进行北极水生生态、数据救援和科学报道方面的教育。该项目将支持一名研究生和几名本科生，并包括与巴罗社区和学校的接触。

This award is funded under the American Recovery and Reinvestment Act of 2009 (Public Law 111-5).This project involves a resampling of several small ponds in the tundra near Barrow, Alaska that were studied intensively in the early 1970s as part of the International Biological Project (IBP) ? Tundra Biome Project. The principal objective of this proposal is to re-sample historic sites and, together with additional sampling methodologies, determine if the physical, chemical and biological environment of tundra ponds on Alaska?s coastal plain have changed in response to recent warming and/or anthropogenic alteration. Key activities will include: 1. Re-sampling IBP tundra ponds for physical, chemical and biological variables last surveyed nearly 40 years ago. 2. Comparing IBP tundra ponds, now being affected by a warming climate and encroaching development, to similar habitats in the region to determine whether they represent the best regional sites to monitor in the long-term, or if they have been overly impacted by development. 3. Investigating possible drivers of change for tundra pond ecosystems under several possible warming scenarios. 4. Establishing new protocols for continuous measurement of parameters of interest. 5. Educating the next generation of polar scientists about Arctic aquatic ecology, data rescue and scientific reporting.This project will support a graduate student and several undergraduates, and include outreach to the Barrow community and schools.