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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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cases where population levels are at CC, increases in habitat quality<br />

are generally negated because coinciding reproductive increases may<br />

add additional deer to the herd, further compounding the problem of<br />

too many deer.<br />

POPULATION BIOLOGY<br />

Many factors of population dynamics affect deer populations—<br />

sex and age structure, mortality, reproductive success, and dispersal.<br />

There are contributing variables for each of these factors. For example,<br />

physical condition and age of a doe affect reproductive output. Overall<br />

sex and age structure are influenced by selective mortality factors, primarily<br />

in the form of hunting. <strong>Deer</strong> hunters and managers can<br />

significantly influence many of these factors, while others are more or<br />

less beyond their control.<br />

POPULATION STRUCTURE<br />

With the exception of the breeding season, adult males and females<br />

have little contact throughout the year. Bucks typically form<br />

small bachelor groups, while does tend to be less social than bucks,<br />

rarely forming associations with unrelated herd members of similar<br />

age and standing. The bachelor groups of bucks remain intact until the<br />

onset of the breeding season. Then the groups temporarily disband<br />

until the breeding season is over. During late summer and fall, doe<br />

groups typically include an adult doe, her female offspring from the<br />

previous year, and her fawns of the year. Several doe groups may feed<br />

together. Shortly before the birth of her fawns, a doe may forcibly drive<br />

away her fawns from the previous year. Yearling does may rejoin their<br />

44

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