Climate control of northern aquatic ecosystems

湖泊、河流和湿地是北部景观的主要组成部分，为土著社区提供重要的生态系统服务，如饮用水供应、运输路线和狩猎和捕鱼资源。这些生物系统易受环境影响，是全球气候变化的哨兵。这项申请是为了帮助满足与我们正在进行的NSERC发现资助研究相关的后勤费用，该研究是关于北方水生生态系统如何响应区域和全球气候变化的复杂问题。我们的研究将在三组地点进行。我们的大部分研究都是基于Ward Hunt岛，Quttinirpaaq国家公园，Nunavut，并将重点放在依赖冰的湖泊和其他沿海水生生态系统上，作为气候变化的指标，以及极端环境下生态生存的模型。我们的部分研究将在Resolute海湾地区的湖泊上进行，以检查微生物在三个生命领域的群落结构和功能（细菌，包括蓝藻；古生菌，包括氨氧化剂；和真核微生物）。第三组地点将在努那维克Kuujjuarapik附近的永久冻土融化湖上，以检查气候变暖的影响。该研究项目将为学生、博士后研究人员和技术人员提供高级培训，研究结果将通过报告（包括翻译成因纽特语）、公开演讲、与学校、电视、广播、报纸和互联网的持续联系，传达给北方社区和其他公众成员。我们在北极网中的参与为部门间和部门内的合作提供了机会，通过北极网/CCIN倡议“极地数据目录”（www.polardata.ca）交换数据和信息，并通过因纽特人环极地会议和因纽特人Tapiriit Kanatami与北方利益相关者进行沟通。

Lakes, rivers and wetlands are major components of the northern landscape and provide important ecosystem services such as drinking water supplies, transport routes and hunting and fishing resources for Aboriginal communities. These living systems are vulnerable to environmental impacts, and are sentinels of global climate change. This request is for funds to help meet the logistic costs associated with our ongoing NSERC Discovery Grant research on the complex question of how northern aquatic ecosystems respond to changes in regional and global climate. Our research will take place at three sets of sites. Most of our research is based out of Ward Hunt Island, Quttinirpaaq National Park, Nunavut, and focuses on ice-dependent lakes and other coastal aquatic ecosystems as indicators of climate change, and as models of ecological survival under environmental extremes. Part of our research will be on lakes in the Resolute Bay area to examine the community structure and function of microbes in the three domains of life (Bacteria, including cyanobacteria; Archaea, including ammonium-oxidizers; and microbial Eukarya). The third set of sites will be on permafrost thaw lakes near Kuujjuarapik, Nunavik, to examine impacts of climate warming. The research program will provide advanced training of students, postdoctoral researchers and technicians, and the results will be communicated to northern communities and other members of the public via reports (including translations into Inuktitut), public presentations, ongoing liaison with schools, TV, radio, newspapers and the internet. Our participation within ArcticNet provides opportunities for collaboration across and within sectors, exchange of data and information via the ArcticNet/CCIN initiative "Polar Data Catalogue" (www.polardata.ca), and communication with northern stakeholders via the Inuit Circumpolar Conference and Inuit Tapiriit Kanatami.