Shaded fuel breaks create wildfire-resilient forest stands: lessons from a long-term study in the Sierra Nevada

Fire Ecology

Table 2 Overview of statistical analyses implemented for each response variable, explanatory variables included in the final model (model with lowest AICc score), conditional and marginal R² values, and AIC weight for each final model

Response variable	Model type	Transformation applied	Variables in final model	Conditional R²	Marginal R²	AIC weight
Residual live basal area (m²ha⁻¹)	Linear mixed-effects	Square root	Measurement timing, wildfire occurrence, interaction term	0.26	0.25	0.45
Live QMD (cm)	Linear mixed-effects	NA	Measurement timing, wildfire occurrence, interaction term	0.43	0.39	0.85
Fine fuels (1-, 10-, 100-h fuels, and litter; Mgha⁻¹)	Linear mixed-effects	NA	Averaged severity	0.38	0.38	0.52
CWD (\(\ge\) 1000-h fuels; Mgha⁻¹)	Linear mixed-effects	Square root	Wildfire occurrence	0.14	0.14	0.44
Duff (Mgha⁻¹)	Linear mixed-effects	Square root	Averaged severity	0.43	0.34	0.52
P-Torch	Generalized linear mixed-effects	Binomial distribution with log-link function	Measurement timing	0.97	0.97	0.50