Decade-Long Plant Community Responses to Shrubland Fuel Hazard Reduction

Fire Ecology

Table 2 Shrub species richness model estimates with standard error and P-value for the main effects and interaction (treatment by years since treatment). Different letters depict significant differences in shrub cover at α ≤ 0.05. Numbers depict marginal significant levels 0.05 ≤ α ≥ 0.10. Significance codes: * <0.001, <0.01, * <0.05, <0.1. Estimates (Est), standard errors (± SE), and P-values (P) are rounded to the nearest one hundredth. P-value of *** implies P-value <0.001.

			Control		Fire-fall		Fire-winter		Fire-spring		Mastication-fall		Mastication-spring
			Est ± SE	P	Est ± SE	P	Est ± SE	P	Est ± SE	P	Est ± SE	P	Est ± SE	P
	Intercept		0.77±0.14	***	0.61±0.09	***	0.68±0.08	***	0.44±0.09	***	0.44±0.09	***	0.44±0.09	***
	Yr since treatment		−0.01±0.02	0.45	0.03±0.01	0.02*	0.01±0.01	0.48	0.00±0.01	0.77	0.03±0.01	0.01*	0.04±0.01	***
Main effect	Control	AB1
	Fire-fall	ACD	−0.16±0.17	0.33
	Fire-winter	A2C	−0.10±0.17	0.55	0.06±0.12	0.59
	Fire-spring	2E	−0.33±0.17	0.04*	−0.17±0.13	0.18	−0.23±0.13	0.07
	Mastication-fall	ED	−0.37±0.17	0.03*	−0.21±0.13	0.11	−0.27±0.12	0.03*	−0.04±0.13	0.76
	Mastication-spring	1CE	−0.27±0.16	0.10	−0.11±0.13	0.41	−0.17±0.12	0.17	0.06±0.13	0.60	0.10±0.12	0.39
	Slope		−0.05±0.03	0.07	−0.05±0.03	0.07	−0.05±0.03	0.07.	−0.05±0.03	0.07.	−0.05±0.03	0.07.	−0.05±0.03	0.07.
	Solar radiation index		0.03±0.03	0.34	0.03±0.03	0.34	0.03±0.03	0.34	0.03±0.03	0.34	0.03±0.03	0.34	0.03±0.03	0.34
Treatment × yr since treatment	Control	A1
	Fire-fall	12B	0.04±0.02	0.06.
	Fire-winter	A	0.02±0.02	0.31	−0.02±0.02	0.27
	Fire-spring	A2	0.01±0.02	0.67	−0.03±0.02	0.09.	−0.01±0.02	0.5
	Mastication-fall	B	0.04±0.02	0.04*	0.01±0.02	0.75	0.02±0.02	0.17	0.04±0.02	0.06.
	Mastication-spring	B	0.05±0.02	0.01**	0.02±0.02	0.33	0.03±0.02	0.03*	0.05±0.02	0.01**	0.01±0.02	0.56