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Table 3 Parameter estimates for number of adult I. ricinus ticks on red squirrel, badger, red fox and roe deer in Norway

From: Tick infestation on medium–large-sized mammalian hosts: are all equally suitable to Ixodes ricinus adults?

Parameter Estimate SE z P
Count part of model
Intercept 0.984 0.533 1.84 0.065
Body mass −0.056 0.064 −0.88 0.377
Red fox 1.454 0.380 3.83  < 0.001
Roe deer 4.301 0.883 4.87  < 0.001
Red squirrel 1.729 0.768 2.25 0.024
Zero-inflation model
Intercept 3.191 1.135 2.81 0.005
Body mass −1.713 0.890 −1.93 0.054
  1. Baseline was badger for species. The model consists of a zero-inflated part (logistic regression of excess zero counts) and a count part (negative binomial regression)