Table 2. Correlation matrix of predictor variables.
| Colony | F0 birth weight⌂ | F0 litter size⌂ | % female F0 litter | F0 age at preg. | d. 60 weight | d. 90 weight | d. 120 weight | Weight gain | F1 litter size | Total F1 Litter weight | Mean F1 neonate weight | |
| F0 birth weight⌂ | n = 20 r = 0.12 | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| F0 litter size⌂ | n = 26 r = -0.30 | n = 20 r = -0.75*** | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| % female, F0 litter | n = 26 r = 0.12 | n = 20 r = -0.47** | n = 26 r = 0.30 | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| F0 age at preg. | n = 26 r = 0.05 | n = 20 r = -0.09 | n = 26 r = -0.05 | n = 26 r = 0.45** | -- | -- | -- | -- | -- | -- | -- | -- |
| d. 60 weight | n = 21 r = 0.34 | n = 16 r = 0.34 | n = 21 r = -0.18 | n = 21 r = -0.24 | n = 21 r = -0.27 | -- | -- | -- | -- | -- | -- | -- |
| d. 90 weight | n = 23 r = 0.24 | n = 17 r = 0.32 | n = 23 r = -0.11 | n = 23 r = -0.25 | n = 23 r = -0.27 | n = 21 r = 0.97**** | -- | -- | -- | -- | -- | -- |
| d. 120 weight | n = 23 r = 0.25 | n = 17 r = 0.36 | n = 23 r = -0.14 | n = 23 r = -0.11 | n = 23 r = -0.21 | n = 21 r = 0.93**** | n = 23 r = -0.97**** | -- | -- | -- | -- | -- |
| Weight gain | n = 16 r = 0.17 | n = 11 r = 0.43 | n = 16 r = -0.29 | n = 16 r = 0.21 | n = 16 r = 0.18 | n = 16 r = 0.06 | n = 16 r = 0.24 | n = 16 r = 0.44* | -- | -- | -- | -- |
| F1 litter size | n = 26 r = 0.26 | n = 20 r = 0.06 | n = 26 r = -0.18 | n = 26 r = -0.10 | n = 26 r = -0.17 | n = 21 r = 0.14 | n = 23 r = 0.18 | n = 23 r = 0.23 | n = 16 r = 0.33 | -- | -- | -- |
| Total F1 Litter weight | n = 24 r = 0.21 | n = 18 r = 0.63*** | n = 24 r = -0.46** | n = 24 r = -0.18 | n = 24 r = 0.08 | n = 21 r = 0.35 | n = 23 r = 0.38* | n = 23 r = 0.44** | n = 16 r = 0.54** | n = 24 r = 0.79**** | -- | -- |
| Mean F1 neonate weight | n = 25 r = -0.06 | n = 19 r = 0.57*** | n = 25 r = -0.27 | n = 25 r = -0.08 | n = 25 r = 0.35* | n = 21 r = 0.35 | n = 23 r = 0.32 | n = 23 r = 0.33 | n = 16 r = 0.31 | n = 25 r = -0.29 | n = 24 r = 0.44** | -- |
| % female F1 litter | n = 25 r = 0.02 | n = 19 r = 0.07 | n = 25 r = -0.19 | n = 25 r = -0.34* | n = 25 r = -0.27 | n = 21 r = 0.04 | n = 23 r = 0.09 | n = 23 r = 0.06 | n = 16 r = 0.27 | n = 25 r = 0.28 | n = 24 r = 0.34 | n = 25 r = 0.17 |
▲ Matrix includes only directly observed births.
⌂ Maternal early life predictors.
*p≤0.10.
**p≤0.05.
***p≤0.01.
****p≤0.0001.