Ecological Archives E092-123-A7

Aleks Terauds, Steven L. Chown, and Dana M. Bergstrom. 2011. Spatial scale and species identity influence the indigenous–alien diversity relationship in springtails. Ecology 92:1436–1447.

Appendix G (TABLE G1). Model selection summary for alien richness at the site scale (metacommunity). Predictor variables: vegetation (VEG), altitude (ALT), ALT2, density indigenous species (DIS), DIS2, DIS × VEG, indigenous species richness (ISR), ISR2; sign in brackets indicates direction of covariation; shaded models do not satisfy underlying assumptions.

Model Variables nVArs R2 AICc Δ AICc AICc wi
#1 (GWR) (-)ALT2 7.2 0.52 128.58 0.00 0.186
#2 (GWR) (+)DIS 2.84 0.40 128.91 0.33 0.158
#2b (OLS) (+)DIS 1 0.28 129.68 1.10 0.107
#3 (OLS) (+)DIS2 1 0.27 129.85 1.27 0.098
#3b (GWR) (+)DIS2 3.20 0.33 129.87 1.29 0.097
#4 (GWR) DIS, (+)ISR2 4.03 0.35 130.38 1.80 0.075
#5 (GWR) (+)DIS, (+)ISR 4.38 0.36 130.50 1.92 0.071
#4b (OLS) (+)DIS, (+)ISR2 2 0.30 130.54 1.96 0.070
#6 (GWR) (+)DIS2, (+)ISR2 3.66 0.33 130.55 1.97 0.069
#6b (OLS) (+)DIS2, (+)ISR2 2 0.30 130.58 2.01 0.068

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