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Table 2 Results from ANOVA for simplified composites derived from discriminant function/MANOVA analysis from 2 to 32 years post-MPB epidemic initiation in south-central Oregon, USA. PROD = productivity class; MORT = level of MPB mortality.aSurface fuels composite 1 is composed of the variables: 100-h fuel load, 1000-h fuel load, and fuel bed depthbSurface fuels composite 2 is composed of the variables: 10-h fuel load, 100-h fuel load, 1000-h fuel load, and fuel bed depth*Indicates a statistically significant difference between TSB stages or a statistically significant effect of a covariate (Bonferroni adjusted α = 0.008)cCrown fuels composite 1 is composed of the variables: dead basal area, live basal area, and overstory canopy closuredCrown fuels composite 2 is composed of the variables: live basal area, canopy bulk density, and canopy base height

From: Beyond red crowns: complex changes in surface and crown fuels and their interactions 32 years following mountain pine beetle epidemics in south-central Oregon, USA

Surface fuels composite 1 a F-value P -value Surface fuels composite 2 b F-value P -value
Stage 40.46 ≤0.001* Stage 5.82 ≤0.001*
PROD 1.48 0.230 PROD 0.11 0.895
MORT 2.07 0.129 MORT 0.09 0.914
TSB1 vs TSB2   0.189 TSB1 vs TSB2   0.011
TSB1 vs TSB3   ≤0.001* TSB1 vs TSB3   0.286
TSB1 vs TSB4   ≤0.001* TSB1 vs TSB4   0.440
TSB2 vs TSB3   ≤0.001* TSB2 vs TSB3   ≤0.001*
TSB2 vs TSB4   ≤0.001* TSB2 vs TSB4   0.030
TSB3 vs TSB4   0.102 TSB3 vs TSB4   0.037
Crown fuels composite 1 c F-value P -value Crown fuels composite 2 d F-value P -value
Stage 66.57 ≤0.001* Stage 23.35 ≤0.001*
PROD 0.97 0.381 PROD 4.31 0.015
MORT 1.42 0.244 MORT 1.83 0.163
TSB1 vs TSB2   0.580 TSB1 vs TSB2   ≤0.001*
TSB1 vs TSB3   ≤0.001* TSB1 vs TSB3   0.157
TSB1 vs TSB4   ≤0.001* TSB1 vs TSB4   0.466
TSB2 vs TSB3   ≤0.001* TSB2 vs TSB3   ≤0.001*
TSB2 vs TSB4   ≤0.001* TSB2 vs TSB4   ≤0.001*
TSB3 vs TSB4   ≤0.001* TSB3 vs TSB4   0.02