Table 1. Factors associated with reproductive hormones during ‘baseline’ and reproductive events in wild meerkats.
| Model terms | Androstenedione | Testosterone | Estradiol | |||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Estimate (SE) | χ2 | P | Estimate (SE) | χ2 | P | Estimate (SE) | χ2 | P | ||
| Baseline | Status | −2.67 (0.41) | 17.9 | <0.001 | −2.02 (0.51) | 5.34 | 0.02 | −0.98 (0.31) | 6.22 | 0.005 |
| Sex | −2.95 (0.51) | 6.07 | 0.01 | −0.84 (0.68) | 10.69 | 0.001 | −0.99 (0.38) | 3.4 | 0.003 | |
| Average weight | 0.003 (0.001) | 8.33 | 0.004 | 0.007 (0.001) | 30.34 | <0.001 | 0.005 (0.001) | 30.49 | <0.001 | |
| Rainfall | — | — | — | −0.18 (0.009) | 4.17 | 0.04 | — | — | — | |
| Age | — | — | — | — | — | — | −0.02 (0.008) | 4.11 | 0.04 | |
| Status*Sex | 2.98 (0.56) | 29.73 | <0.001 | 2.62 (0.75) | 12.76 | <0.001 | 0.83 (0.42) | 4.18 | 0.04 | |
| Roving | Average weight | 0.005 (0.001) | 20.28 | <0.001 | 0.006 (0.001) | 17.84 | <0.001 | 0.004 (0.001) | 15.16 | <0.001 |
| Roving | — | — | — | 0.59 (0.27) | 4.85 | 0.03 | — | — | — | |
| Pregnancy | Status | −1.92 (0.27) | 53.96 | <0.001 | −1.37 (0.35) | 16.02 | <0.001 | −0.89 (0.24) | 16.66 | <0.001 |
| Pregnant | 0.97 (0.21) | 21.36 | <0.001 | 0.97 (0.22) | 19.56 | <0.001 | 0.16 (0.26) | 24.22 | <0.001 | |
| Status*Pregnant | — | — | — | — | — | — | 0.64 (0.31) | 5.14 | 0.02 | |
Random effects = Individual.
All comparisons made against the indicated levels of each factor (status = dominant, sex = female, reproductive state = baseline).
χ2 = likelihood ratio test statistic; df = 1.