Deer hunting regulations help conservation goals by managing populations and encouraging them to reach levels that are sustainable by the environment and consistent with human activity and existing populations. If a jurisdiction finds that the deer population has been depleted to an extent that action must be taken or wants to encourage populations to grown in particular areas, regulations can place temporary bans on hunting until populations reach the desired levels.
Most deer hunting regulations that attempt to manage populations recognize that a single male deer can breed with multiple does, and removing bucks does not affect overall populations, but taking does generally results in fewer fawns and tens to reduce populations.
Regulations that attempt to restore populations in a given area tend to prohibit the taking of does and antlerless bucks and restrict hunting to times of the year that allow the natural breeding patterns of deer. Once a buck has impregnated some females, taking it does not have an adverse effect on the overall population.
Conversely, if the deer population needs thinning, regulations may change to require the taking of females before allowing hunters to take antlered deer. This may occur when populations become to large for the local environment to sustain them and the deer begin developing diseases, or causing car accidents with humans when they wander into new areas in search of food.