Table 1.
Selected final models for reproductive success and spacing behaviour in bank voles. BM, centred value of body mass before injection; HW, centred value of head width before injection; low, low population density; inf., infected bank voles; σ2 is the variance attributable to random effect; s.d., standard deviation; s.e. standard error. Significant effects are shown in bold.
| response variable | predictors | estimates (s.e.) | t-value | z-value | p-value | random effect (enclosure) | |
|---|---|---|---|---|---|---|---|
| males and females | breeding probability | intercept infection (inf.) density (low) sex (male) BM infection: BM sex: BM |
1.40 (0.39) −0.53 (0.38) −0.93 (0.38) −0.42 (0.38) −0.11 (0.15) −0.33 (0.17) 0.40 (0.17) |
3.60 −1.39 −2.42 −1.10 −0.71 −2.00 2.27 |
<0.01
0.16 0.02 0.27 0.48 0.05 0.02 |
σ2: 0.00 s.d.: 0.00 |
|
| males | relative number of offspring | intercept infection (inf.) density (low) BM infection: density |
−2.08 (0.31) 0.20 (0.42) 1.76 (0.47) 0.16 (0.07) −2.72 (0.89) |
−6.80 0.493.79 2.31 −3.06 |
<0.01
0.63 <0.01 0.03 <0.01 |
σ2: 1.19 × 10−9
s.d.: 3.46 × 10−5 |
|
| relative number of partners | intercept infection (inf.) density (low) BM infection: density |
−1.52 (0.28) 0.07 (0.39) 1.24 (0.48) 0.15 (0.06) −1.95 (0.82) |
−5.51 0.18 2.59 2.31 −2.38 |
<0.01
0.86 0.03 0.03 0.02 |
σ2: 1.11 × 10−9
s.d.: 3.33 × 10−5 |
||
| home range surface | intercept infection (inf.) density (low) infection: density |
378.18 (78.24) 146.38 (107.54) 429.71 (126.16) −594.50 (176.51) |
4.83 1.36 3.41 3.37 |
<0.01
0.19 <0.01 <0.01 |
σ2: 0.00 s.d.: 0.00 |
||
| females | parturition delay | intercept infection (inf.) density (low) |
1.70 (0.18) −0.75 (0.25) −0.27 (0.26) |
9.49 −3.00 −1.04 |
<0.01
<0.01 0.30 |
σ2: 0.00 s.d.: 0.00 |