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Table 2 Scenarios in simulations of spatial and temporal dynamics of SBW outbreaks, where D is the relative stand density, C is the host tree percentage, Wv is the velocity of wind, Wd is the direction of wind, H is the dominant height, L is the metric of habitat suitability, Def is the defoliation, and ΔE is the difference in elevation

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

Predictor

Scenario

Reference

a

b

c

d

e

f

g

h

D

0.31 (1975 mean)

As reference

    

0.20

0.40

C

59% (1975 mean)

    

50%

75%

  

Wv

11.2 m s-1 (1975 mean)

  

5.0 m s-1

15.0 m s-1

    

Wd

225° (1975 value)

270°

315°

      

H

19.0 m (1975 mean)

    

As reference

  

L

0.60 (1975 mean)

        

Def

preset initial values

        

ΔE

as is

        
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Annals of Forest Science

ISSN: 1297-966X