Table 1.
Models relating ARS to age, inbreeding coefficients (f) and kinship coefficient (k) in female and male song sparrows. (F and R indicate the full dataset and restricted dataset of individuals that lived 4–6 years, respectively. Nind and Nobs are the sample sizes of individuals and observations, respectively. Individual f and mate f are the inbreeding coefficients of focal individuals and their mates, respectively. Sample sizes were reduced in analyses including f because individuals with unknown parents or grandparents were excluded. ‘Individual’ and ‘year’ represent the estimates of the variance components associated with the two random effects.)
| dataset | Nind | Nobs | age | age2 | individual f | mate f | kinship (k) | age×individual f | year | individual | ||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| F(p) | β(95% CI) | F(p) | β(95% CI) | F(p) | β(95% CI) | F(p) | β(95% CI) | F(p) | β(95% CI) | F(p) | β(95% CI) | estimate±s.e. | estimate±s.e. | |||
| females | ||||||||||||||||
| F | 452 | 999 | 11.8 | 0.09 | 22.4 | −0.05 | 0.19±0.06 | 0.07±0.02 | ||||||||
| (0.0006) | (0.04 to −0.13) | (<0.0001) | (−0.07 to −0.03) | |||||||||||||
| R | 84 | 340 | 0.3 | 0.03 | 1.5 | −0.03 | 0.18±0.06 | 0.05±0.02 | ||||||||
| (0.59) | (−0.07 to 0.12) | (0.22) | (−0.07 to 0.02) | |||||||||||||
| F | 325 | 717 | 6.97 | 0.09 | 13.3 | −0.04 | 7.03 | −1.52 | 5.99 | −1.24 | 1.08 | 0.46 | 0.01 | −0.04 | 0.19±0.06 | 0.07±0.02 |
| (0.009) | (0.02 to 0.16) | (0.0003) | (−0.06 to −0.02) | (0.008) | (−2.64 to −0.40) | (0.015) | (−2.23 to −0.24) | (0.30) | (−0.41 to 1.33) | (0.93) | (−0.80 to 0.73) | |||||
| males | ||||||||||||||||
| F | 579 | 1401 | 139.4 | 0.31 | 96.2 | −0.09 | 0.33±0.09 | 0.15±0.03 | ||||||||
| (<0.0001) | (0.26 to 0.37) | (<0.0001) | (−0.11 to −0.07) | |||||||||||||
| R | 122 | 513 | 23.7 | 0.20 | 8.4 | −0.06 | 0.18±0.06 | 0.12±0.04 | ||||||||
| (<0.0001) | (0.12 to 0.28) | (0.004) | (−0.09 to −0.02) | |||||||||||||
| F | 327 | 912 | 45.02 | 0.23 | 41.3 | −0.07 | 4.22 | −1.38 | 3.1 | −1.18 | 1.67 | −0.78 | 4.24 | −0.87 | ||
| (<0.0001) | (0.16 to 0.30) | (<0.0001) | (−0.09 to −0.05) | (0.04) | (−2.71 to −0.06) | (0.08) | (−2.50 to 0.14) | (0.20) | (−1.96 to 0.40) | (0.04) | (−1.70 to −0.04) | 0.29±0.09 | 0.09±0.03 | |||