Alabama Hunter Safety Course

 

Carrying Capacity

Each piece of land has a specific carrying capacity. The carrying capacity for a piece of land is the number of animals that the land can sustain without damage to the habitat or the animals. As in the illustration above, imagine the carrying capacity as a lake - the annual reproduction of wildlife (the rain) continuously replenishes the habitat. However the habitat can only hold so much wildlife. The runoff from the dam indicates the different factors that will affect the wildlife population in a habitat. These animals are known as the harvestable surplus. They are the animals that would expire due to other factors, and thus can be harvested by hunters without damaging the population. The quality and number of wildlife on any given piece of land is affected by the following factors (known as limiting factors):

Disease

Examples of this are chronic wasting disease, Hemorrhagic fever and parasites.

Climate

Drought conditions dry up watering holes, and snow and ice cover food sources. Too much rain can damage nesting sites.

Predators

Predators prey on the very young, old and sick animals for food.

Starvation

This usually occurs when there are too many animals and not enough food.

Hunting

Hunting removes the overpopulation of wildlife in a given area.

Accidents

Loss of habitat to development increases the occurrences of wildlife being hit by vehicles.

 
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