Purchasing a stereomicroscope to study the interactive effects of multiple stressors on the plankton of Ontario lakes

毫无疑问，从多重压力的角度来看，环境退化是最好的理解和最好的管理。安大略省湖泊的生物群现在正受到人为来源的物理、化学和生态应激源的交互影响。例如，许多加拿大盾湖的浮游生物仍然受到历史酸化、金属污染和海岸线开发的影响，而气候变化、钙含量下降和入侵物种的传播最近又增加了压力组合。严在约克大学火焰实验室(多生态应激源评估现场实验室)的合作研究正在迅速扩大，以应对这一新兴的多应激源现实。在新资助的NSERC战略网络的支持下，雪莱·阿诺特和我将量化钙下降对本地浮游动物的交互影响，以及安大略省中部湖泊入侵、捕食和带刺的水蚤的传播。在新资助的NSERC CRD赠款的支持下，Jim McGeer和我将量化道路盐、钙下降和天然有机碳供应对萨德伯里地区湖泊中本地淡水水生动物和两足类从历史金属污染中恢复的交互影响。最后，如果新的CREATE助学金申请成功，我将在一个化学背景不断变化的世界里，加强对几名金属生态毒理学新学生的培训。所有这些工作都将在远离约克主校区的安大略省多塞特市的火焰实验室进行。这项研究和培训需要获得研究质量的立体显微镜，我只有一台，这台仪器将被已经资助的工作淹没。因此，Arnott，McGeer和我要求第二个研究质量的立体显微镜，以加强我们实验室将在火焰中工作的5名新研究生的研究和培训，并在CREATE应用程序成功的情况下加强对额外HQP的培训。有了这台新的显微镜，我们将能够在了解多种应激源对我们的湖泊的交互影响方面取得快速进展，这是它们更明智管理的必要先驱。

There is no longer any doubt that environmental degradation is best understood and best managed from a multiple-stressor perspective. The biota of Ontario lakes are now suffering from the interactive effects of physical, chemical and ecological stressors of anthropogenic origin. For example, the animal plankton of many Canadian Shield lakes are still suffering from a legacy of historical acidification, metal pollution and shoreline development, while climate change, calcium decline and the spread of invading species have recently been added to the stressor mix. Yan's collaborative research in York University's FLAMES lab (Field Laboratory for the Assessment of Multiple Ecological Stressors) is rapidly expanding to tackle this emerging multi-stressor reality. With the support of a newly funded NSERC Strategic network, Shelley Arnott and I will quantify the interactive effects on native zooplankton of Ca decline and the spread of the invading, predatory, spiny water flea in central Ontario lakes. With the support of a newly funded NSERC CRD grant, Jim McGeer and I will quantify the interactive effects of road salt, calcium decline, and natural organic carbon supply on the recovery of native freshwater daphniids and amphipods from historical metal pollution in Sudbury-area lakes. Finally, should a new CREATE grant application be successful, I will be enhancing the training of several new students in metal ecotoxicology in a world with a changing background chemistry. All of this work will be conducted in the FLAMES lab which is located in Dorset, Ontario, far from the main York campus. This research and training require access to research-quality stereomicroscopes, of which I have only one, an instrument which will be swamped by the work that is already funded. Therefore, Arnott, McGeer and I are requesting a second research-quality stereomicroscope to enhance the research and training of 5 new graduate students from our labs that will be working in FLAMES, and to enhance the training of additional HQP should the CREATE application be successful. With this new microscope, we will be able to make rapid progress understanding the interactive effects of multiple stressors on our lakes, a necessary precursor to their wiser management.