Table 1 Variation in apparent pregnancy rates of Japanese and South African false killer whales with age
From: Evidence for a postreproductive phase in female false killer whales Pseudorca crassidens
Age class (lower bound) | Pregnant | Pregnant a | Total mature | Pregnant /Total | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Â | JP | SA | Both | JP | SA | Both | JP | SA | Both | JP | SA | Both |
8.25 | 1 | 0 | 1 | 0 | 0 | 0 | 4 | 2 | 6 | 0.25 | 0.00 | 0.17 |
14.25 | 3 | 1 | 4 | 0 | 0 | 0 | 11 | 3 | 14 | 0.27 | 0.33 | 0.29 |
20.25 | 3 | 0 | 3 | 1 | 1 | 2 | 8 | 2 | 10 | 0.50 | 0.50 | 0.50 |
26.25 | 1 | 0 | 1 | 0 | 2 | 2 | 6 | 5 | 11 | 0.17 | 0.40 | 0.27 |
32.25 | 0 | 0 | 0 | 1 | 0 | 1 | 7 | 5 | 12 | 0.14 | 0.00 | 0.08 |
38.25 | 2 | 0 | 2 | 0 | 0 | 0 | 8 | 5 | 13 | 0.25 | 0.00 | 0.15 |
44.25 | 0 | 0 | 0 | 0 | 0 | 0 | 3 | 5 | 8 | 0.00 | 0.00 | 0.00 |
50.25 | 0 | 0 | 0 | 0 | 0 | 0 | 7 | 3 | 10 | 0.00 | 0.00 | 0.00 |
56.25 | 0 | 0 | 0 | 0 | 0 | 0 | 3 | 3 | 5 | 0.00 | 0.00 | 0.00 |
Total | 10 | 1 | 0 | 2 | 3 | 5 | 57 | 32 | 89 | - | - | - |