Variable | Year | |||||
1987 n = 54 | 1988 n = 60 | 1989 n = 76 |
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SE | ![]() |
SE | ![]() |
SE | |
Body Mass | 795A | 10a | 795A | 10 | 755B | 10 |
Wing Chord (mm) | 261.75A | 0.94 | 256.73B | 0.89 | 262.16A | 0.79 |
Culmen (mm) | 47.68A | 0.22 | 47.29B | 0.21 | 46.91B | 0.19 |
Tarsus (mm) | 50.24A | 0.24 | 50.23A | 0.23 | 49.92A | 0.20 |
a Means with same letter within rows are not different using Fisher's protected LSD value (P > 0.05). |
Winter Period | Intervals | Days | na | Exposure Days |
Deaths | Survival | SE | Huntingb Mortality |
Nonhuntingb Mortality |
---|---|---|---|---|---|---|---|---|---|
1987-88 | Preseason | 60 | 54 | 3,138 | 2 | 0.962 | 0.027 | 0.000 | 0.038 |
Hunting Season | 79 | 50 | 3,711 | 4 | 0.912 | 0.042 | 0.087 | 0.000 | |
Postseason | 33 | 40 | 1,133 | 1 | 0.972 | 0.027 | 0.000 | 0.028c | |
Overall | 172 | 54 | 7,982 | 7 | 0.854 | 0.051 | 0.087 | 0.059 | |
1988-89 | Preseason | 58 | 60 | 3,280 | 2 | 0.966 | 0.024 | 0.000 | 0.034 |
Hunting Season | 79d | 53 | 3,984 | 1 | 0.980 | 0.020 | 0.020 | 0.000 | |
Postseason | 47 | 47 | 1,905 | 3 | 0.933 | 0.038 | 0.021e | 0.046 | |
Overall | 184 | 60 | 9,169 | 6 | 0.883 | 0.046 | 0.041 | 0.076 | |
1989-90 | Preseason | 64 | 76 | 4,354 | 1 | 0.986 | 0.014 | 0.000 | 0.014 |
Hunting Season | 71d | 59 | 3,644 | 2 | 0.960 | 0.028 | 0.040 | 0.000 | |
Postseason | 47 | 41 | 1,245 | 1 | 0.952 | 0.045 | 0.048e | 0.000 | |
Overall | 182 | 76 | 9,243 | 4 | 0.901 | 0.053 | 0.086 | 0.013 | |
a Max. no. of pintails
monitored during interval. b Obtained by censoring mortalities from other sources; no difference between hunting and nonhunting rates. c Mortality of unknown cause classed as nonhunting. d Includes 59 days of hunting and 20 days (1988-89) or 12 days (1989-90) split with no hunting. e 1 illegal kill 14 Jan 1988; 1 illegal kill 10 Feb 1990. |