Ecological Archives E088-193-A7

Brian G. DeGasperis and Glenn Motzkin. 2007. Windows of opportunity: historical and ecological controls on Berberis thunbergii invasions. Ecology 88:3115–3125.

Appendix G (Table G1). Multiple regression of disturbance variables and environmental principal components vs. Berberis thunbergii log-abundance.

 

df

F

P

Coefficient

Abundance (R2 = 0.49)

       

Model

4

12.71

< 0.001

 

Intercept

   

< 0.001

2.35

‘Seed Sources’

1

11.44

< 0.01

-0.38

Post-Introduction LULC

1

6.38

0.01

-0.35

‘Soil Nutrients’

1

9.18

< 0.01

0.18

‘Soil Acidity’

1

1.62

0.21

-0.10



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