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Biology And Management Of White-tailed Deer In Alabama

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out the Southeast have reported dispersal rates among yearling bucks<br />

as high as 85% (Holzenbein and Marchinton 1992). These studies have<br />

shown dispersal distances among yearling bucks ranging from two miles<br />

to greater than six miles (Kammermeyer and Marchinton 1976). While<br />

the actual percentage of yearling males that disperse great distances is<br />

debatable—it is certain a significant proportion of yearling males do<br />

disperse.<br />

Maternal aggression (directed at immature bucks by their mothers)<br />

during the breeding and fawning season has been identified as a<br />

primary cause for dispersal among yearling bucks. Additionally, studies<br />

have shown temporary<br />

dispersal among 40 to 50% of<br />

1-1/2 and 2-1/2 year old bucks<br />

during the rut. Thus, pressure<br />

from adult bucks is a<br />

primary factor in these events<br />

(Downing and McGinnes<br />

1976). Compared to bucks,<br />

yearling does display very<br />

little dispersal with the exception<br />

of the breeding/<br />

fawning periods. Much of this<br />

dispersal among young does<br />

is temporary.<br />

Dispersal of buck fawns or “button<br />

bucks” typically occurs during the<br />

breeding and fawning seasons when<br />

they are forcibly driven away by their<br />

mothers.<br />

15

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