Table 2.
Coefficients provided by the model-averaging procedure investigating the influence of the sociospatial structure identified (i.e. unit #1 to #5), sex, age (quadratic term) and slaughtering operations on brucellosis (Brucella melitensis) seroprevalence in the Alpine ibex (Capra ibex) from the Bargy massif (northern French Alps; see Table 1 for details on the set of candidate models). In parameter acronyms, “×” corresponds to the interactive effect between both parameters. β is the estimated value, SE is the standard error of the estimated value, 95% CI is the 95% confidence interval. The reference group (intercept) corresponds to females from unit #2 before the slaughtering operations.
| Parameter | β | SE | 95% CI | p-value |
|---|---|---|---|---|
| intercept | −2.32 | 0.63 | [−3.56; −1.09] | 0.00 |
| males | −0.49 | 0.35 | [−1.11; 0.13] | 0.33 |
| age | 9.04 | 4.66 | [0.06; 18.02] | 0.06 |
| age2 | −6.19 | 3.37 | [−12.70; 0.33] | 0.07 |
| unit #4 | 3.03 | 0.75 | [1.57; 4.50] | 0.00 |
| unit #3 | 2.59 | 0.64 | [1.34; 3.83] | 0.00 |
| unit #5 | 1.65 | 0.66 | [0.36; 2.94] | 0.01 |
| unit #1 | 0.24 | 30.48 | [−59.49; 59.97] | 0.99 |
| age × males | −10.70 | 6.22 | [−21.11; −0.30] | 0.49 |
| age 2 × males | −1.64 | 3.47 | [−12.10; 8.83] | 0.85 |
| after slaughtering | 0.38 | 0.28 | [−0.40; 1.15] | 0.68 |
| age × after slaughtering | −9.05 | 2.98 | [−22.28; 4.17] | 0.82 |
| age 2 × after slaughtering | 2.08 | 1.72 | [−9.76; 13.92] | 0.93 |
| age × unit #4 | −31.14 | 1.89 | [−94.67; 32.40] | 0.98 |
| age × unit #3 | −34.73 | 1.97 | [−96.24; 26.77] | 0.97 |
| age × unit #5 | −36.78 | 2.03 | [−98.58; 25.03] | 0.97 |
| age × unit #1 | −35.23 | 2.15 | [−107.94; 37.48] | 0.98 |
| age 2 × unit #4 | 10.12 | 0.95 | [−29.60; 49.84] | 0.98 |
| age 2 × unit #3 | 14.45 | 1.01 | [−23.46; 52.37] | 0.98 |
| age 2 × unit #5 | 6.52 | 0.87 | [−32.19; 45.23] | 0.99 |
| age 2 × unit #1 | −18.41 | 1.86 | [−97.15; 60.33] | 0.99 |
| after slaughtering × unit #4 | 1.61 | 0.07 | [−1.40; 4.62] | 0.98 |
| after slaughtering × unit #3 | 1.28 | 0.06 | [−1.42; 3.97] | 0.98 |
| after slaughtering × unit #5 | −0.49 | 0.04 | [−3.19; 2.21] | 0.99 |
| after slaughtering × unit #1 | 15.02 | 30.47 | [−1914.88; 1944.92] | 1.00 |
| males × unit #4 | −0.27 | 0.02 | [−3.23; 2.69] | 1.00 |
| males × unit #3 | 1.04 | 0.03 | [−1.48; 3.56] | 0.99 |
| males × unit #5 | 0.81 | 0.02 | [−1.82; 3.43] | 0.99 |
| males × unit #1 | 1.87 | 0.04 | [−1.30; 5.04] | 0.99 |
| males × after slaughtering | −0.15 | 0.00 | [−1.44; 1.14] | 1.00 |