the lesson of the kaibab

data table
year | deer population
1905 | 4,000
1910 | 9,000
1915 | 25,000
1920 | 65,000
1924 | 100,000
1925 | 60,000
1926 | 40,000
1927 | 37,000
1928 | 35,000
1929 | 30,000
1930 | 25,000
1931 | 20,000
1935 | 18,000
1939 | 10,000

analysis
1. during 1906 and 1907, what two methods did the forest service use to protect the kaibab deer?
2. were these methods successful? use the data from your graph to support your answer.
3. why did the population of deer decline in 1925?
4. why do you think the deer population size in 1900 was 4,000 when it is estimated that the plateau has a carrying capacity of 30,000?
5. based on these lessons, suggest what you would have done in the following years to manage deer herds.
1915:
1925:

Question

the lesson of the kaibab

data table
year | deer population
1905 | 4,000
1910 | 9,000
1915 | 25,000
1920 | 65,000
1924 | 100,000
1925 | 60,000
1926 | 40,000
1927 | 37,000
1928 | 35,000
1929 | 30,000
1930 | 25,000
1931 | 20,000
1935 | 18,000
1939 | 10,000

analysis
1. during 1906 and 1907, what two methods did the forest service use to protect the kaibab deer?
2. were these methods successful? use the data from your graph to support your answer.
3. why did the population of deer decline in 1925?
4. why do you think the deer population size in 1900 was 4,000 when it is estimated that the plateau has a carrying capacity of 30,000?
5. based on these lessons, suggest what you would have done in the following years to manage deer herds.
1915:
1925:

Accepted Answer

### Question 1
# Brief Explanations:
To answer this, we recall the historical context of the Kaibab deer protection. The Forest Service in 1906 - 1907 used two methods: 1) They banned the hunting of deer (made it illegal to hunt Kaibab deer) and 2) They killed the predators of the deer (such as cougars, wolves, etc.) to reduce predation on the deer population.
# Answer:
The two methods were: 1. Banning the hunting of Kaibab deer (making deer hunting illegal). 2. Killing the natural predators of the deer (like cougars, wolves).

### Question 2
# Brief Explanations:
To determine success, we look at the deer population data. From 1905 (4,000) to 1924 (100,000), the population increased significantly. So the methods were successful in increasing the deer population as the data shows a sharp rise in the number of deer over the years following the implementation of the protection methods.
# Answer:
Yes, the methods were successful. The data table shows that the deer population increased from 4,000 in 1905 to 100,000 in 1924, indicating that the protection methods (banning hunting and killing predators) led to a large growth in the deer population.

### Question 3
# Brief Explanations:
In 1925, the deer population declined because the deer had exceeded the carrying capacity of the Kaibab Plateau. The large population (reaching 100,000 in 1924) overgrazed the available vegetation, leading to a lack of food. Also, with the predators killed earlier, the deer population had grown too large for the ecosystem to support, and diseases might have also spread more easily in the dense population, all contributing to the decline.
# Answer:
The deer population declined in 1925 because the deer population had exceeded the carrying capacity of the Kaibab Plateau. The over - population led to overgrazing of vegetation (food shortage), and with a lack of natural predators to control the population and possible spread of diseases in the dense population, the deer population started to decrease.

### Question 4
# Brief Explanations:
In 1900, the deer population was 4,000 even though the carrying capacity was 30,000 because before the Forest Service intervention, there were natural factors limiting the population. These included predation (from predators like cougars, wolves), human hunting (which was not banned yet), and perhaps competition for resources or diseases that kept the population below the carrying capacity.
# Answer:
In 1900, the deer population was 4,000 (below the carrying capacity of 30,000) because natural limiting factors such as predation (from predators like cougars, wolves), human hunting, and possible competition for resources or diseases were keeping the population in check before the Forest Service implemented protection measures.

### Question 5 (1915)
# Brief Explanations:
In 1915, the deer population was 25,000. To manage the deer herds, we should start to consider the carrying capacity. Since the population is growing, we could reintroduce some level of controlled hunting (not as much as before, but to start regulating the population) or start to manage the predator population in a more balanced way (maybe not kill all predators) to prevent the population from exceeding the carrying capacity in the future. Also, we could start monitoring the vegetation and food resources to ensure they are not over - utilized.
# Answer:
In 1915, to manage the deer herds, I would: 1. Implement a controlled hunting program (with strict quotas) to start regulating the deer population growth. 2. Stop the complete eradication of predators and start to manage their population in a way that helps control deer numbers (e.g., reintroduce some predators or stop killing all of them) to maintain a more natural balance. 3. Monitor the vegetation and food resources available for the deer to ensure sustainable use.

### Question 5 (1925)
# Brief Explanations:
In 1925, the deer population is declining (from 100,000 in 1924 to 60,000 in 1925) due to over - population effects. To manage the herds, we need to help the ecosystem recover. This could involve providing supplementary food to the deer to reduce overgrazing pressure on the natural vegetation, implementing a deer relocation program to move some deer to areas with more resources, and continuing to manage the predator population in a balanced way to prevent future over - population or under - population. Also, we should focus on restoring the overgrazed vegetation.
# Answer:
In 1925, to manage the deer herds, I would: 1. Provide supplementary food to the deer to reduce the pressure on the natural vegetation and help the deer survive the food shortage. 2. Implement a deer relocation program to move some deer to other areas with sufficient resources to reduce the population density in the Kaibab Plateau. 3. Focus on restoring the overgrazed vegetation (e.g., through reseeding programs) to improve the ecosystem's carrying capacity. 4. Continue to manage the predator population in a balanced manner to ensure long - term population control.

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