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Table 4 Non-native annual grass abundance 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.

From: Decade-Long Plant Community Responses to Shrubland Fuel Hazard Reduction

   

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

Main effect

Intercept

 

41.06±11.16

***

36.46±17.03

0.03*

20.72±15.72

0.19

15.42±15.75

0.33

104.98±17.50

***

45.68±15.04

***

Yr since treatment

 

−0.39±9.26

0.97

−0.87±2.55

0.73

0.96±2.61

0.72

1.27±2.99

0.67

−4.33±2.54

0.09.

0.57±2.28

0.8

Control

A1B

            

Fire-fall

ABC

−4.60±16.35

0.78

          

Fire-winter

1C

−25.64±14.74

0.08.

−15.73±13.03

0.23

        

Fire-spring

AC

−20.33±14.93

0.17

−21.04±13.30

0.11

−5.31±12.25

0.67

      

Mastication-fall

D

63.94±17.17

***

68.54±15.31

***

84.26±14.59

***

89.58±15.28

***

    

Mastication-spring

B

4.62±14.60

0.75

9.22±13.40

0.49

24.95±12.45

0.05*

30.26±12.95

0.02*

−59.31±13.76

***

  

Survey yr precipitation

 

8.82±6.76

0.19

8.82±6.76

0.19

8.83±6.76

0.19

8.82±6.76

0.19

8.83±6.76

0.19

8.82±6.76

0.19

Treatment × yr since treatment

Control

ABC

            

Fire-fall

ABC

−0.49±9.89

0.96

          

Fire-winter

AD

1.65±10.02

0.87

1.83±2.49

0.46

        

Fire-spring

A1

1.34±9.90

0.89

2.14±2.87

0.46

0.31±2.88

0.91

      

Mastication-fall

B1

−3.95±9.93

0.69

−3.46±2.40

0.15

−5.29±2.40

0.03*

−5.60±2.87

0.05.

    

Mastication-spring

CD

0.95±9.83

0.92

1.44±2.24

0.52

−0.39±2.24

0.86

−0.70±2.72

0.8

4.90±2.10

0.02*

 Â