A5011461462- Fire effects on ecosystems
- Rangeland and Wildlife Management
- Peatlands and Wetlands Ecology
- Landslides and related hazards
- Indigenous Studies and Ecology
- Plant Water Relations and Carbon Dynamics
- Climate change and permafrost
- Tree-ring climate responses
- Economic and Environmental Valuation
- American Environmental and Regional History
University of Alberta
2023-2024
University of Wisconsin–Madison
2021-2023
Abstract Fire regimes in North American forests are diverse and modern fire records often too short to capture important patterns, trends, feedbacks, drivers of variability. Tree‐ring scars provide valuable perspectives on regimes, including centuries‐long year, season, frequency, severity, size. Here, we introduce the newly compiled tree‐ring fire‐scar network (NAFSN), which contains 2562 sites, >37,000 fire‐scarred trees, covers large parts America. We investigate NAFSN terms geography,...
Background Drivers of fire regimes vary among spatial scales, and history reconstructions are often limited to stand making it difficult partition effects regional climate forcing versus individual site histories. Aims To evaluate regional-scale historical over 350 years, we analysed an extensive fire-scar network, spanning 240 km across the upper Great Lakes Region in North America. Methods We estimated frequency, identified regionally widespread years (based on fraction fire-scarred tree...
Across the western North American boreal region, networks of narrow clearings called seismic lines from oil and gas exploration fragment forests. Restoration for habitat recovery threatened woodland caribou has been prioritized, but there is little guidance on temporal spatial targets forest recovery. Between 2016 2022, we sampled regenerating trees 344 with limited re‐disturbance across sands region Alberta, Canada. We modeled growth relationships trees, including regeneration lags, using...
Peatlands contain one-third to one-half of global soil carbon, and disturbances, specifically fire, directly influence these carbon stocks. Despite this, historical variability peatland fire regimes is largely unknown. This gap in knowledge partly stems from reconstructions with methods limited evaluating infrequent, severe events not capturing frequent, low-severity events. Furthermore, likely higher heterogenous landscapes like the hemiboreal subzone, transition between boreal temperate...