The Kaibab Insight

The Lesson Of The Kaibab 1. In 1906 and 1907, what teo methods did the Forest Created the Grand Service decide to use to protect the Kaibab deer? Canyon National Game Preserve and killed the deers predators. 2. How many total predators were removed from the 8,724 preserve between 1907 and 1939? 3. What was the relationship of the deer herd to the in 1915: The deer herd carrying capacity of the range: was 5 below the carrying capacity. in 1920: the deer herd was 5 above the carrying capacity. in 1924: had almost 3x carrying capacity 4. Did the Forest Service program appear to be suc- Yes, because they had cessful between 1905 and 1924? Explain your an- a drastic incline in the swer. deer population. 5. Why do you suppose the population of the deer Overpopulation ocdeclined in 1925 although the predators were be- curred, so the deer ing removed? starved to death. 6. Do you think any changes had occurred in the Yes, it decreased becarrying capacity of the range from 1900 to 1940? cause in the beginExplain your answer. ning the forest was overgrazed. The overgrazing reduced food to support a carrying capacity of 30,000, when the herd grew to 100,000 it kept reducing food supply. 7. Why do you suppose the population of deer in 1900 was 4,000 when the range had estimated carrying capacity of 30,000? 1/2 Probably because of the overgrazing that occurred. 8. Without the well-meaning interference of huThe deer population mans, what do you think would have happened to would've most likely the deer population after 1900? stayed around 4,000 because the overgrazing had reduced the food source to support the deer. 9. What major lessons were learned from the Kaibab Taught land managers deer experience? that there is a fine balance that must be managed between carrying capacity, food, source, climate, hunting and/or predators. 10. If the lessons learned from the Kaibab deer stud- reduced the number of ies had been known then, what recommendations grazing animals in the would you have made in 1915? area to give deer more room. In 1923: allowed hunting to reduce the population of deer. In 1939: Add more deer or reduce the amount of hunting so the deer population can recover. 11. What future management plan would you suggest Controlled hunting of for the Kaibab deer herd? deer, add some predators, & controlled number of deer birth. (birth control.) 2/2