Table 1. Details of the sampling sites.
| Distance from, km
|
Average body mass in sampling period,* g ± SE
|
Date when 50% of females had mated†
|
Biweekly survival rate‡
|
||||
|---|---|---|---|---|---|---|---|
| Site | A | B | C | D | |||
| A | 4 | 20 | 20 | 19.6 ± 0.5 | April 9 | 0.74 | |
| B | 4 | 21 | 22 | 21.2 ± 0.5 | March 18 | 0.86 | |
| C | 20 | 21 | 1 | 20.1 ± 0.3 | March 30 | 0.85 | |
| D | 20 | 22 | 1 | 20.7 ± 0.4 | March 27 | 0.86 | |
*
There was no significant change in body mass over the sampling period.
†
Estimated from logistic regression on proportion of females with perforate vagina.
‡
Geometric mean of biweekly estimates of survival probability. Survival probabilities are estimated from capture—recapture data collected at 2-week intervals between mid-March and mid-April by using the Cormack—Jolly—Seber model with time-specific survival and recapture probability in the program mark.