Impact of Red Fox Predation on the Sex Ratio of Prairie Mallards
Table 3: Definitions of Rates Associated with the Equations in Table 2
Table 3. Definitions of rates associated with the equations in Table 2.
| r1 | = Number of male mallards taken per fox family |
| r2 | = Number of female mallards taken per fox family |
| r3 | = Proportion of male mallards surviving year |
| r4 | = Proportion of female mallards surviving year |
| r5 | = Proportion of male mallards suffering hunting mortality |
| r6 | = Proportion of female mallards suffering hunting mortality |
| r7 | = Proportion of male mallards taken by fox |
| r8 | = Proportion of female mallards taken by fox |
| r9 | = Proportion of male mallards suffering "other" mortality in summer |
| r10 | = Proportion of female mallards suffering "other" mortality in summer |
| r11 | = Proportion of male mallards suffering "other" mortality in winter |
| r12 | = Proportion of female mallards suffering "other" mortality in winter |
| r13 | = Sex ratio of recruited birds (male per female) |
Previous Section-- Table 2: Relationships Among Components of the Model
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Next Section-- Table 4: Various Indices of Red Fox Densities and Estimated Spring Population of Red Fox Families
