Table 1.
The mean (±standard error, s.e.) first-year survival estimates and the lower and upper 95% confidence intervals (CI) for seven cohorts of southern elephant seals at Macquarie Island.
| cohort | mean estimate | s.e. | lower 95% CI | upper 95% CI | mean wean mass (kg)±s.d. | sample (n) |
|---|---|---|---|---|---|---|
| 1993 | 0.8070 | 0.0101 | 0.7864 | 0.8260 | 118.17±26.10 | 1061 |
| 1994 | 0.7517 | 0.0099 | 0.7317 | 0.7707 | 117.41±26.43 | 585 |
| 1995 | 0.7622 | 0.0101 | 0.7419 | 0.7813 | 115.56±26.37 | 816 |
| 1996 | 0.7993 | 0.0092 | 0.7808 | 0.8167 | 117.36±26.75 | 962 |
| 1997 | 0.7627 | 0.0091 | 0.7444 | 0.7802 | 122.85±28.09 | 953 |
| 1998 | 0.7456 | 0.0086 | 0.7284 | 0.7621 | 119.11±28.78 | 1126 |
| 1999 | 0.7172 | 0.0089 | 0.6994 | 0.7343 | 120.03±27.01 | 1001 |
| all cohorts | 0.7461 | 0.0034 | 0.7393 | 0.7528 | 118.79±27.24 | 6504 |