Table 1.
Distribution of (a) extra-group offspring (EGO) and (b) extra-group mate pairs (EGMP) within litters that include only cubs that had both parents assigned. The numbers of litters expected from binomial probabilities are shown in parentheses
| Litter Size | No. of EGO per litter | Total litters | ||||
|---|---|---|---|---|---|---|
| 0 | 1 | 2 | 3 | 4 | ||
| (a) | ||||||
| 1 | 132 (129.1) | 107 (109.9) | – | – | – | 239 |
| 2 | 57 (34.1) | 6 (58.1) | 54 (24.8) | – | – | 117 |
| 3 | 10 (3.2) | 1 (8.0) | 2 (6.9) | 7 (1.9) | – | 20 |
| 4 | 1 (0.2) | 0 (0.6) | 1 (0.7) | 0 (0.4) | 0 (0.1) | 2 |
| Total | 200 (166.6) | 114 (176.6) | 57 (32.4) | 7 (2.3) | 0 (0.1) | 378 |
| Number of mates | No. of EGMP per litter | Total litters | ||||
| 0 | 1 | 2 | ||||
| (b) | ||||||
| 1 | 188 (180.2) | 152 (159.8) | - | 340 | ||
| 2 | 12 (10.7) | 10 (18.9) | 16 (8.4) | 38 | ||
| Total | 200 (190.9) | 162 (178.7) | 16 (8.4) | 378 | ||