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Table 5 Null model and the top five models for nymph abundance

From: A multi-level analysis of the relationship between environmental factors and questing Ixodes ricinus dynamics in Belgium

  Model 0 Model 1 Model 2 Model 3 Model 4 Model 5
Fixed effect Coefficient (Std. Error)
Intercept 3.29 (0.39)*** 3.77 (1.14)*** 3.94 (1.38)** 1.87 (1.05). −13.29 (5.35)* −16.28 (5.60)**
Level–1 : Sampling       
Daily wind speed (7 previous days mean)   −0.33 (0.01)*    −0.30 (0.15)*  
Daily relative humidity (sampling day)    −0.02 (0.01).   −0.02 (0.01). −0.02 (0.01).
Daily maximum temperature (sampling day)     0.03 (0.02).   
Level–2 : Site       
Euclidean mean nearest-neighbour distance (ra = 500 m)   −0.02 (0.01)*** −0.02 (0.00)*** −0.02 (0.01)* −0.03 (0.01)*** −0.03 (0.01) **
Area-weighted mean forest shape index (r = 1500 m)   1.01 (0.21)*** 1.10 (0.23)*** 1.06 (0.22)*   
Area-weighted mean patch fractal dimension (r = 1500 m)      18.63 (4.32)*** 20.50 (4.65).
Random effect Variance (Std. Error)
Intercept 5.46 (0.21) 1.32 (0.10) 2.00 (0.13) 1.73 (0.12) 1.62 (0.11) 2.17 (0.13)
AIC 1433.25 1391.81 1393.49 1393.92 1394.68 1396.54
ΔAIC 0 41.44 39.76 39.33 38.56 36.71
  1. a r : Buffer zone radius.
  2. ***P < 0.001; **P < 0.01; *P < 0.05; .P < 0.1.