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Some Estimates of Moose Populations in British Columbia During ...

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Table 4.<br />

- 92-<br />

Table 4 shows estimated populations, cover<strong>in</strong>g two<br />

periods with<strong>in</strong> the years 1950 to 1970.<br />

The first period,<br />

us<strong>in</strong>g Method 1 for calculation, covers the years<br />

1950 - 1957 and provides a mean value for the fall<br />

population <strong>of</strong> 84,960. The lowest value is 53,607<br />

<strong>in</strong> the year 1956, and the highest value is 143,101 for<br />

the year 1952.<br />

Normal productivity would be <strong>in</strong>sufficient<br />

to account for the leap from one year's population to<br />

the next <strong>in</strong> some cases, and the amount <strong>of</strong> variability<br />

is largely attributable to the <strong>in</strong>exactitude <strong>of</strong> the<br />

method <strong>of</strong> calculation. However, as the estimates can<br />

only refer to the hunted population an <strong>in</strong>crease from<br />

one year to the next may be partially expla<strong>in</strong>ed by<br />

the expansion <strong>of</strong> hunt<strong>in</strong>g <strong>in</strong>to previously unhunted,<br />

or very lightly hunted, areas -<br />

a process which was<br />

tak<strong>in</strong>g place at that time.<br />

Dur<strong>in</strong>g the same period the<br />

ratios <strong>of</strong> male:female:juvenile show a trend <strong>in</strong> which<br />

the number <strong>of</strong> females relatively dim<strong>in</strong>ished, while the<br />

cow:calf ratio <strong>in</strong>creased:<br />

from 1.0 : 2.6 : 1.1 to<br />

1.0 : 2.2 : 0.9. This is <strong>in</strong> keep<strong>in</strong>g with the effects<br />

<strong>of</strong> the antler less seasons which were <strong>in</strong>stituted dur<strong>in</strong>g<br />

this period.

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