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Waterfowl Breeding Pair Distributions

Pair-wetland regression equations

General form of the equations is:

P = A*W + B*sqrt(W),

where

P is breeding pairs,

W is pond area in acres,

A and B are regression coefficients,

sqrt is the square root.

Baseline regression equations used for estimating breeding duck populations from the
area (ac.) and class of individual ponds.
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                                                   Pond class
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                             Temporary      Seasonal      Semipermanent       Lakes
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Mallard               A          0              0            0.024049           0
                      B       0.18036        0.19954         0.12304         0.18309

Blue-winged teal      A          0              0            0.025395           0
                      B       0.19839        0.47456         0.43261         0.40138

Gadwall               A          0              0            0.022311           0
                      B       0.09920        0.18353         0.17280         0.48119

N. pintail            A          0              0            0.0024379          0
                      B       0.14879        0.11835         0.09415         0.15727

N. shoveler           A          0              0            0.0028659          0
                      B       0.05862        0.12007         0.12051         0.27698
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