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Table 3 Tibetan Snowcock occupancy (ψ) models

From: Habitat use and diel activity pattern of the Tibetan Snowcock (Tetraogallus tibetanus): a case study using camera traps for surveying high-elevation bird species

Model ΔAICc AICc weight No. par. (‒2LL) ψ (± SE)
(a)      
 ψ (EVI, ELE, ROD, SED, SLO) 0.000 0.150 7 − 753.453 0.830 (± 0.073)
 ψ (EVI, ELE, RID, ROD, SED, SLO) 0.297 0.129 8 − 752.405 0.826 (± 0.073)
 ψ (ELE, ROD, SED, SLO) 1.152 0.084 6 − 755.197 0.789 (± 0.072)
 ψ (ELE, DTRI, ROD, SLO) 1.212 0.081 6 − 755.231 0.765 (± 0.084)
 ψ (EVI, ELE, DTRI, ROD, SLO) 1.289 0.078 7 − 754.098 0.932 (± 0.066)
 ψ (EVI, ELE, ROD, SLO) 1.417 0.074 6 − 755.330 0.812 (± 0.098)
 ψ (EVI, ELE, DTRI, ROD, SED, SLO) 1.446 0.073 8 − 752.980 0.837 (± 0.072)
 ψ (ELE, DTRI, ROD, SED, SLO) 1.494 0.071 7 − 754.200 0.799 (± 0.072)
 ψ (ELE, ROD, SLO) 1.542 0.069 5 − 756.534 0.761 (± 0.078)
 ψ (ELE, RID, ROD, SED, SLO) 1.629 0.066 7 − 754.267 0.776 (± 0.074)
 ψ (EVI, ELE, DTRI, RID, ROD, SED, SLO) 1.652 0.065 9 − 750.859 0.819 (± 0.075)
 ψ (ELE, DTRI, RID, ROD, SED, SLO) 1.828 0.060 8 − 753.171 0.770 (± 0.074)
 ψ (.) 22.413 2 − 770.245 0.707 (± 0.053)
Site covariates Summed model weights
(b)  
 ELE 1.000
 SLO 1.000
 ROD 1.000
 SED 0.697
 EVI 0.569
 DTRI 0.429
 RID 0.321
  1. (a) We list all models whose ΔAICc ≤ 2, null model, and present AICc weight, number of parameters (No. par.), twice the negative log likelihood (− 2LL) and estimated occupancy rate (ψ). (b) Summed model weight of each site covariates in the equivalent models. The key for the covariate codes used is given in Table 1