Table 5.
Multiple regression results VTA and POM: OPRK1, PDYN, factors and nest box possession
| VTA OPRK1 (dependent variable) | Independent Variables | Beta | std error of Beta | t (df) | p |
|---|---|---|---|---|---|
| adj R2 = 0.54, p = 0.012 | F1: sexual/agonistic behaviors | − 0.61 | 0.18 | 3.45 (11) | 0.005 |
| n = 16 | F2: nesting | − 0.02 | 0.18 | 0.10 (11) | 0.920 |
| F3: feeding and drinking | 0.03 | 0.18 | 0.18 (11) | 0.862 | |
| F4: gonad volume | − 0.52 | 0.18 | 2.89 (11) | 0.015 | |
| VTA PDYN (dependent variable) | |||||
| adj R2 = −0.03, p = 0.505 | F1: sexual/agonistic behaviors | − 0.12 | 0.26 | 0.45 (11) | 0.658 |
| n = 16 | F2: nesting | − 0.20 | 0.26 | 0.75 (11) | 0.471 |
| F3: feeding and drinking | − 0.40 | 0.27 | 1.49 (11) | 0.165 | |
| F4: gonad volume | − 0.13 | 0.27 | 0.47 (11) | 0.647 | |
| mPOA OPRK1 (dependent variable) | |||||
| adj R2 =0.25, p = 0.113 | F1: sexual/agonistic behaviors | − 0.44 | 0.22 | 2.05 (12) | 0.063 |
| n = 17 | F2: nesting | 0.03 | 0.22 | 0.16 (12) | 0.879 |
| F3: feeding and drinking | − 0.52 | 0.22 | 2.40 (12) | 0.034 | |
| F4: gonad volume | 0.08 | 0.22 | 0.35 (12) | 0.731 | |
| mPOA PDYN (dependent variable) | |||||
| adj R2 = 0.42, p = 0.031 | F1: sexual/agonistic behaviors | −0.25 | 0.19 | 1.32 (12) | 0.210 |
| n = 17 | F2: nesting | −0.47 | 0.19 | 2.43 (12) | 0.032 |
| F3: feeding and drinking | −0.18 | 0.19 | 0.96 (12) | 0.358 | |
| F4: gonad volume | 0.50 | 0.19 | 2.57 (12) | 0.024 |