Effects of a severe wildfire on a bat community in the Canadian Rocky Mountains

A severe wildfire in Waterton Lakes National Park, part of the Canadian Rocky Mountain Parks UNESCO World Heritage Site, had mixed effects on bat communities. While 40 kHz Myotis bats showed increased activity in burned areas post-fire, suggesting a shift to more favorable foraging conditions, other species like the big brown bat and silver-haired bat experienced declines, particularly in unburned areas. Hoary bats were consistently negatively affected across all sites. The study used acoustic detectors over six years (three pre-fire and three post-fire) to monitor bat activity, revealing species-specific responses likely driven by changes in foraging opportunities and prey availability. These findings highlight the complex impacts of wildfires on biodiversity and underscore the need for further research to understand long-term resilience in the face of climate change.

Low, E., Florko, K., Mahoney, H., & Barclay, R. (2024). Effects of a severe wildfire on a bat community in the Canadian Rocky Mountains. Forest Ecology and Management, 563, 121983. https://doi.org/10.1016/j.foreco.2024.121983