Impact of Red Fox Predation on the Sex Ratio of Prairie Mallards

Table 12: Annual Survival and Recovery Rates for Adult Mallards

Table 12. Annual survival and recovery rates for adult male and female mallards banded before the hunting season in Minor Reference Area 131, 1963-67^a

	Survival rate		Recovery rate
Year	Male	Female	Male	Female
1963	0.672	0.560	0.055	0.031
1964	0.611	0.482	0.069	0.045
1965	0.799	0.739	0.049	0.029
1966	0.585	0.536	0.059	0.044
1967	0.725	0.766	0.062	0.040
Average	0.678	0.617	0.059	0.038

^a Data from Anderson (1975). Banded samples of each sex ranged from 201 to 1,668 birds.

Previous Section-- Table 11: Estimated Red Fox Predation Rates on Mallards
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Next Section-- Table 13: Means, Standard Deviations, and Correlations Among Adult Mallard Survival and Recovery Rates