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Table 3 Parameter estimates, standard errors, and p values for the predictors in our model

From: Assessing spatial and temporal dynamics of a spruce budworm outbreak across the complex forested landscape of Maine, USA

Predictor

Symbol

Unit

Parameter estimate

Standard error

p value

Interaction between relative stand density and dominant height

D ∙ H

0-1 ratio · m

−1.383

0.118

<0.01

Dominant height

H

m

0.583

0.047

<0.01

Interaction between relative stand density and host tree percentage

D ∙ C

0-1 ratio · %

41.73

2.575

<0.01

Defoliation

Def

%

0.093

0.003

<0.01

Habitat suitability

L

0-1 ratio

−18.59

4.356

<0.01

Wind

W

m s-1

1.127

0.479

0.02

Interaction between wind and elevation difference

W ∙ ΔE

m s-1 ∙ m

0.016

0.011

0.12