![]() ![]() ![]() The overwinter deer population for each DMU is determined by subtracting the harvest from the pre-hunt population estimate. The adult buck population is then expanded to the entire population using estimates of the number of does per buck and the number of fawns per doe in the pre-hunt population. The SAK formula combines this estimate with information on the size of the buck harvest to estimate the size of the pre-hunt adult buck population. Information on the age composition of the buck harvest is used to estimate the percentage of adult bucks killed during the legal hunt. Information from harvest registration and aging, along with other data, is used in a mathematical population model called the Sex-Age-Kill (SAK) formula. Under such stable conditions, managers have found that buck harvest trends closely track deer population trends. The proportion of the adult buck population taken by hunters is relatively uniform from one year to the next. When hunters register their deer, information is collected on the date and place of harvest and the sex of the deer. Mandatory registration of every deer harvested during the hunting season is the backbone of the state’s deer monitoring system. ![]()
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