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Biology And Management Of White-tailed Deer In Alabama

Biology And Management Of White-tailed Deer In Alabama

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potential is documented at the George Reserve in southern Michigan.<br />

This area is a 1,200-acre tract enclosed by an eleven-foot deer-proof<br />

fence. <strong>In</strong> 1928, six deer (2 bucks and 4 does) were released inside the<br />

area. Six years later, a drive count yielded a minimum population of<br />

160 deer (Hickie 1937). The growth of the George Reserve herd reflects<br />

a mathematical model known as the logistical equation (Caughley 1977).<br />

This model is characterized by an S-shaped curve reflecting how<br />

<strong>In</strong> this hypothetical population growth model, during the early stages<br />

of population growth, deer numbers are low and food is abundant.<br />

Reproductive output is high and physical condition of the herd is<br />

excellent—consequently the population grows rapidly. As the<br />

population reaches carrying capacity (CC), reproductive output is<br />

slowed and births equal deaths in the population. At this point,<br />

physical condition of the herd is poor and chronic disease is prevalent.<br />

Population levels maintained between 50 to 60 percent of CC are at the<br />

point of maximum sustained yield. At this point, the maximum number<br />

of fawns are born (and survive), deer are in excellent physical<br />

condition, and annual harvest of deer is maximized.<br />

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