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Table 2 Parameter estimates and test statistics from mixed effects models with negative binomial error for the relationship between (A) abundance and (B) density of ticks on red deer, Norway

From: Attachment site selection of life stages of Ixodes ricinus ticks on a main large host in Europe, the red deer (Cervus elaphus)

Parameter Estimate Std. Error z value P
A. Abundance     
Intercept 7.3617 2.1670 3.400 0.001
Bodypart (groin vs leg) 0.3586 0.2198 1.630 0.103
Bodypart (neck vs. leg) 0.1177 0.2221 0.530 0.596
Bodypart (ear vs. leg) 1.0613 0.2200 4.820 <0.001
Bodypart (back vs. leg) −2.7549 0.2931 −9.400 <0.001
Sex (f vs. m) −0.4887 0.2862 −1.710 0.088
Age (1.5 vs. 0.5) 0.6453 0.3802 1.700 0.090
Age (≥2.5 vs. 0.5 0.7498 0.3507 2.140 0.033
Julian date −0.0189 0.0079 −2.380 0.017
Elevation −0.0015 0.0011 −1.370 0.170
B. Density     
Intercept 5.3200 1.9700 2.710 0.007
Size of skin 2.24e-05 4.26e-06 5.260 <0.001
Bodypart (groin vs leg) 0.0435 0.2030 0.210 0.830
Bodypart (neck vs. leg) −0.6670 0.2410 −2.760 0.006
Bodypart (ear vs. leg) 1.0500 0.1950 5.370 <0.001
Bodypart (back vs. leg) −3.1800 0.2890 −11.010 <0.001
Sex (f vs. m) −0.2120 0.2590 −0.820 0.414
Age (1.5 vs. 0.5) 0.4900 0.3390 1.440 0.149
Age (≥2.5 vs. 0.5 0.5640 0.3140 1.800 0.072
Julian date −0.0136 0.0071 −1.910 0.056
Elevation −0.0006 0.0010 −0.620 0.533