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Table 4 Comparisons of the top models (∆AICc < 20) of first-passage time as a function environmental variables of two waterfowl species in southern Africa

From: Exploring the environmental drivers of waterfowl movement in arid landscapes using first-passage time analysis

Model K AICc ΔAICc AICc Wt Cum Wt
  Egyptian Geese
32 mFPTRmax ~ ΔNDVI t-32 + ΔmNDWI t-32 + ΔPrecipt-32 + site + (1|ID) 9 1979.25 0.00 0.43 0.43
34 mFPTRmax ~ ΔNDVI t-32 + ΔPrecipt-32 + site + (1|ID) 8 1979.39 0.14 0.40 0.83
30 mFPTRmax ~ ΔNDVI t-32 + ΔPrecipt-32 + (1|ID) 5 1982.95 3.70 0.07 0.90
28 mFPTRmax ~ ΔNDVI t-32 + ΔmNDWI t-32 + ΔPrecipt-32 + (1|ID) 6 1983.44 4.19 0.05 0.95
19 mFPTRmax ~ mNDWIt + Precipt + site + (1|ID) 10 1984.52 5.27 0.03 0.98
16 mFPTRmax ~ NDVIt + mNDWIt + Precipt + site + (1|ID) 11 1986.00 6.75 0.01 1.00
15 mFPTRmax ~ mNDWIt + Precipt + (1|ID) 5 1992.27 13.02 0.00 1.00
  Red-billed Teal
34 mFPTRmax ~ ΔNDVI t-32 + ΔPrecipt-32 + site + (1|ID) 7 833.87 0.00 0.38 0.38
26 mFPTRmax ~ ΔNDVI t-16 + ΔPrecipt-16 + site + (1|ID) 7 834.79 0.92 0.24 0.62
32 mFPTRmax ~ ΔNDVI t-32 + ΔmNDWI t-32 + ΔPrecipt-32 + site + (1|ID) 8 835.21 1.34 0.19 0.82
24 mFPTRmax ~ ΔNDVI t-16 + ΔmNDWI t-16 + ΔPrecipt-16 + site + (1|ID) 8 836.83 2.95 0.09 0.90
30 mFPTRmax ~ ΔNDVI t-32 + ΔPrecipt-32 + (1|ID) 5 837.70 3.83 0.06 0.96
28 mFPTRmax ~ ΔNDVI t-32 + ΔmNDWI t-32 + ΔPrecipt-32 + (1|ID) 6 839.54 5.67 0.02 0.98
22 mFPTRmax ~ ΔNDVI t-16 + ΔPrecipt-16 + (1|ID) 5 840.40 6.53 0.01 0.99
20 mFPTRmax ~ ΔNDVI t-16 + ΔmNDWI t-16 + ΔPrecipt-16 + (1|ID) 6 842.45 8.57 0.01 1.00
35 mFPTRmax ~ ΔmNDWI t-32 + ΔPrecipt-32 + site + (1|ID) 7 852.07 18.19 0.00 1.00
  1. Models are ranked based on differences in the corrected Akaike’s Information Criteria (ΔAICc) Akaike weights (AICc Wt). K is the number of estimated parameters and Cum Wt is the cumulative weight of sequential models. Individual birds (ID) were added as a random effect to all models