Geochemistry and Microbiology of the Extreme Aquatic Environment in Lake Vida, East Antarctica

拟议的项目是一个合作研究项目的一部分，主要是与伊利诺伊大学芝加哥分校的合作伙伴合作，并与已经批准的NSF提案密切相关。该项目旨在加强对极端水生生态系统的了解。干谷中的维达湖是世界上最极端的水生生态系统之一。在整个项目范围内，对湖冰、湖水和沉积物中的生物地球化学过程和微生物群落的详细调查将在水生生态系统环境物理演变的背景下处理多样性、适应机制和演变过程。德国调查的长期重点是该湖泊的沉积清查，以获取有关生态系统物理环境过去变化的信息，并更好地了解此类极端环境的沉积特征。申请该项目的第一步是确保2010/2011年南夏季维达湖的钻探活动取得成功，并支付探险和钻探费用，这些费用不在美国合作伙伴的NSF资助范围内。

The proposed project is part of a collaborative research program, mainly with partners from the University of Illinois at Chicago, and closely related to an already approved NSF proposal. The project aims on an enhanced understanding of extreme aquatic ecosystems. Lake Vida in the Dry Valleys is among the most extreme aquatic ecosystems in the world. Within the scope of the overall project, the detailed investigation of biogeochemical processes and microbial communities in the lake ice, the lake water and in the sediments will address diversity, adaptive mechanisms and evolutionary processes in the context of the physical evolution of the environment of the aquatic ecosystems. The long-term focus of the German investigations is on the sedimentary inventory of the lake in order to obtain information on past changes in the physical environment of the ecosystem and to better understand the sedimentary characteristics of such extreme environments. The project applied for here is intended, in a first step, to ensure a successful drilling campaign of Lake Vida in austral summer 2010/2011, and to cover expedition and drilling costs, which are not covered by the US collaboration partners within the scope of NSF funding.