Ecological Archives M081-001-A4

Martin Simard, William H. Romme, Jacob M. Griffin, and Monica G. Turner. 2011. Do mountain pine beetle outbreaks change the probability of active crown fire in lodgepole pine forests? Ecological Monographs 81:3–24.

Appendix D. ANOVA tables for time-since-beetle class analyses.

TABLE D1. Surface fuels.

1-hour fuel load (R2 = 0.74) dfb F P
TSBa N.S.
Data set 1 55.33 < 0.0001
TSB × Data set N.S.

a Time-since-beetle class
b Degrees of freedom

10-hour fuel load (R2 = 0.43) df F P
TSBa N.S.
Data set 1 14.32 0.0013
TSB × Data set N.S.
   
100-hour fuel load df F P
TSB N.S.
Data set N.S.
TSB × Data set N.S.
   
1000-hour fuel load (R2 = 0.22) df F P
TSB N.S.
Data set 1 5.35 0.0320
TSB × Data set N.S.
   
 Fuel bed depth df F P
TSB N.S.
   
Needle litter depth  (R2 = 0.35) df F P
TSB 2 4.90 0.0200
Data set N.S.
TSB × Data set N.S.
   
Duff depth df F P
TSB N.S.
Data set N.S.
TSB × Data set N.S.

 

TABLE D2. Canopy fuels.

Canopy base height df F P
TSB N.S.
     
Sapling density df F P
TSB N.S.
     
Foliar moisture content  (R2 = 0.73) df F P
TSB 2 16.19 0.0004
     
Canopy bulk density  (R2 = 0.47) df F P
TSB 2 5.23 0.0233
     
Canopy fuel load  (R2 = 0.65) df F P
TSB 2 11.11 0.0019
     
Live herbaceous fuel load  (R2 = 0.60) df F P
TSB 2 6.42 0.0097
Data set N.S.
TSB × Data set 2 4.11 0.0378
     
Live woody fuel load  (R2 = 0.29) df F P
TSB 2 3.67 0.0460
Data set N.S.
TSB × Data set N.S.

 

TABLE D3. Temperature probes.

Daily mean (R2 = 0.84) df F P
TSB 3 20.27 <0.0001
     
Mid-day mean (R2 = 0.72) df F P
TSB 3 10.40 0.0012

 

TABLE D4. Fire hazard indices.

Torching Index df F P
TSB N.S.
     
Crowning Index (R2 = 0.45) df F P
TSB 2 4.83 0.0289

 

TABLE D5. Crown fire behavior metrics.

Crown fraction burned, 20 km/h  (R2 = 0.36) df F P
TSB 4 2.85 0.0509
     
Crown fraction burned, 40 km/h  (R2 = 0.37) df F P
TSB 4 2.89 0.0489
     
Crown fraction burned, 60 km/h df F P
TSB N.S.
     
Crown fraction burned, 80 km/h df F P
TSB  – N.S.
     
Rate of spread, 20 km/h  (R2 = 0.35) df F P
TSB 4 2.64 0.0643
     
Rate of spread, 40 km/h  (R2 = 0.36) df F P
TSB 4 2.84 0.0514
     
Rate of spread, 60 km/h df F P
TSB N.S.
     
Rate of spread, 80 km/h df F P
TSB N.S.
     
Heat per unit area, 20 km/h df F P
TSB N.S.
     
Heat per unit area, 40 km/h  (R= 0.35) df F P
TSB 4 2.70 0.0602
   
Heat per unit area, 60 km/h  (R= 0.50) df F P
TSB 4 4.97 0.0060
   
Heat per unit area, 80 km/h  (R= 0.48) df F P
TSB 4 4.63 0.0082
   
Fireline intensity, 20 km/h df F P
TSB N.S.
     
Fireline intensity, 40 km/h  (R= 0.39) df F P
TSB 4 3.20 0.0347
     
Fireline intensity, 60 km/h (R= 0.45) df F P
TSB 4 4.14 0.0133
     
Fireline intensity, 80 km/h (R= 0.44) df F P
TSB 4 3.93 0.0164

 

TABLE D6. Surface fire behavior metrics.

Rate of spread, 20 km/h df F P
TSB N.S.
Data set N.S.
TSB × Data set N.S.
     
Rate of spread, 40 km/h df F P
TSB N.S.
Data set N.S.
TSB × Data set N.S.
     
Rate of spread, 60 km/h df F P
TSB N.S.
Data set N.S.
TSB × Data set N.S.
     
Rate of spread, 80 km/h df F P
TSB N.S.
Data set N.S.
TSB × Data set N.S.
     
Heat per unit area, 20 km/h df F P
TSB N.S.
Data set N.S.
TSB × Data set N.S.
     
Heat per unit area, 40 km/h df F P
TSB N.S.
Data set N.S.
TSB × Data set N.S.
     
Heat per unit area, 60 km/h df F P
TSB N.S.
Data set N.S.
TSB × Data set N.S.
     
Heat per unit area, 80 km/h df F P
TSB N.S.
Data set N.S.
TSB × Data set N.S.
     
Fireline intensity, 20 km/h df F P
TSB N.S.
Data set N.S.
TSB × Data set N.S.
     
Fireline intensity, 40 km/h df F P
TSB N.S.
Data set N.S.
TSB × Data set N.S.
     
Fireline intensity, 60 km/h df F P
TSB N.S.
Data set N.S.
TSB × Data set N.S.
     
Fireline intensity, 80 km/h df F P
TSB N.S.
Data set N.S.
TSB × Data set N.S.

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