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Parameter estimates using different the sex-ratios (Female∶Male) reported in Canada over the period from 1931 to 1980*.

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posted on 2009-02-26, 02:04 authored by Douglas S. Goodin
*

Values derived from reference [65] for the condition where (C = 0.5) and assuming the change in the environmental factor (whatever this is) has been steadily increasing (i.e., linear) over the time-interval (sd = standard deviation). The estimates for the parameters a and b trend downward in the more recent time-intervals because the definition of a unit of environmental change (see Table 2) becomes smaller with more recent observation periods. The other estimates are unaffected by this circumstance (see Equations 14, 17, and 21).

**

Values for the maximum value that C could take (see text); extrapolated backward to the (1941–1945) time-period for comparison.

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