Stable Isotopes Reveal the Drivers of Post-Wildfire Natural Regeneration of Interior Douglas-Fir Seedlings in British Columbia.

ABSTRACT: Wildfires are increasing in frequency and severity due to climate change, posing challenges to forest ecosystems, including the southern interior of British Columbia, Canada. Interior Douglas-fir (Pseudotsuga menziesii var. glauca) is a species of great cultural, ecological, and economic importance, necessitating the investigation of post-wildfire regeneration amidst this changing wildfire regime. This study examines interior Douglas-fir seedling regeneration across three burn severity levels (low, moderate, high) 5 years post-wildfire at a site in interior British Columbia. Natural regeneration and seedling traits were measured in 2022 and paired with stable isotope analyses (δ¹³C, δ¹⁵N, δ¹⁸O) and foliar nutrient assessments. We employed linear mixe

SUBMITTER: McAulay J 

PROVIDER: S-EPMC11906369 | biostudies-literature | 2025 Mar

REPOSITORIES: biostudies-literature