PPS Arctic Canada (Present processes, Past changes, Spatio-temporal variability in the Arctic delimitation zone, Canada)

Summary: One of the most visible features in the Canadian Arctic is the delimitation zone or treeline. Although its position is related primarily to latitude and altitude, other factors like climate can play a role in its definition. By mapping the distribution of tree and non-tree species at the treeline, collecting climate and related environmental data, assessing the role of landscape disturbance and developing predictive models, this project is investigating how the Canadian treeline is changing and what mechanisms are creating this change. The relationship between the treeline and northern communities is also being investigated, as Northerners not only notice changes in the treeline over time, but are affected by these changes in terms of harvesting, traditional activities and eco-tourism.