Table 3 The probability of bank voles being infested with I. trianguliceps larvae and nymphs (in logit scale) in relation to explanatory variables selected for the best models.

From: Sympatric Ixodes-tick species: pattern of distribution and pathogen transmission within wild rodent populations

 

I. trianguliceps larva

I. trianguliceps nymph

Coefficient (SE)

z-value

P-value

Coefficient (SE)

z-value

P-value

Intercept

 

−1.596 (0.538)

−2.966

0.003

−0.800 (0.430)

−1.859

0.0630

BM

 

−0.187 (0.033)

−5.669

<0.001

   

BM2

 

−0.014 (0.004)

−3.109

0.002

   

Sex

Male

   

0.626 (0.215)

2.915

0.004

I. tri_L/N infestation

0.690 (0.252)

2.738

0.006

0.920 (0.243)

3.783

<0.001

Session

June

1.399 (0.558)

2.507

0.012

−0.133 (0.431)

−0.309

0.757

July

0.141 (0.641)

0.220

0.826

−0.806 (0.487)

−1.654

0.098

August

−0.539 (0.574)

−0.940

0.347

0.591 (0.413)

1.432

0.152

September

1.566 (0.562)

2.785

0.005

−0.992 (0.447)

−2.221

0.026

Location

Urban

   

−0.797 (0.251)

−3.177

0.002

Random effect

 

σ2 = 0.016; sd = 0.126

σ2 = 0.059; sd = 0.242

  1. BM = the vole’s body mass (in grams, centred value), BM2 = polynomial term of BM; Session = trapping sessions (five levels, May is the reference); I. tri_L/N infestation = simultaneous I. trianguliceps larva/nymph infestation. Location = urban or non-urban location of the study site. Random effect = identity of the study site. σ2 = the variance attributable to random effect. sd = standard deviation of σ2. The number of observations is 551.
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