Table 1.
Male and female reproductive success during direct competition
|
Response Variable |
Source |
Males |
Females |
||||||
|---|---|---|---|---|---|---|---|---|---|
| DF | DFden | F | P | DF | DFden | F | P | ||
| Number of offspring | |||||||||
| |
Sweep* |
4 |
84.5 |
0.94 |
0.45 |
4 |
82.7 |
0.75 |
0.56 |
| Breeding treatment |
1 |
84.4 |
4.38 |
0.039 |
1 |
82.1 |
0.70 |
0.41 |
|
| Breeding treatment x number of surviving males |
1 |
41.8 |
4.11 |
0.049 |
|
|
|
|
|
| Number of litters | |||||||||
| |
Sweep |
4 |
83.1 |
1.02 |
0.40 |
4 |
85 |
0.55 |
0.70 |
| Breeding treatment |
1 |
82.6 |
5.82 |
0.018 |
1 |
85 |
6.59 |
0.012 |
|
| Litter size | |||||||||
| |
Sweep |
4 |
72.8 |
1.22 |
0.31 |
4 |
|
83.8 |
0.27 |
| Breeding treatment | 1 | 75.8 | 0.25 | 0.62 | 1 | 83.3 | 0.28 | ||
GLMM analysis of components of promiscuous line and monogamous line founder (n = 100) reproductive success as determined by sex-specific markers with enclosure (n = 10) as a random effect and all other variables as fixed effects.
* Offspring sweeps were conducted approximately every 35 days to remove and sacrifice pups for genetic analysis (thus preventing them from reaching sexual maturity) (n = 5).