Table of Contents
- 1 What was the carrying capacity of the Kaibab deer?
- 2 What most likely caused the deer population to change between 1915 and 1920?
- 3 Why do you think the deer population size in 1906 was only 4000 when it was estimated that the plateau had a carrying capacity of 30000?
- 4 What type of population growth occurred with the Kaibab deer?
- 5 What was the relationship of the deer herd population size and the carrying capacity of the range in?
- 6 What happened to the deer population between 1971 and 1980?
- 7 What happened to the deer population of the Kaibab Plateau over time?
- 8 What caused the Kaibab deer population to collapse?
- 9 What happens when deer are above their carrying capacity?
- 10 What was the population of deer in 1905?
What was the carrying capacity of the Kaibab deer?
about 30,000 deer
Before 1905, the deer on the Kaibab Plateau were estimated to number about 4000. The average carrying capacity of the range was then estimated to be about 30,000 deer. On November 28th, 1906, President Theodore Roosevelt created the Grand Canyon National Game Preserve to protect the “finest deer herd in America.”
What most likely caused the deer population to change between 1915 and 1920?
predation
From 1915 to 1920, predation managed the deer population. From 1925 to 1930, resource scarcity was the most influential factor on the changing deer population. 4. Which of these changes in an ecosystem would most likely result in an increase of the carrying capacity of herbivores in the environment?
Why do you think the deer population size in 1906 was only 4000 when it was estimated that the plateau had a carrying capacity of 30000?
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? There was competition between the deer and other species for the resources of the environment.
What was the deer population in 1915?
| Year | # of deer |
|---|---|
| 1915 | 25000 |
| 1920 | 65000 |
| 1924 | 100000 |
| 1925 | 60000 |
What happened to the Kaibab deer population?
Under greatly reduced predator pressure, the deer herd exploded to more than 100,000 in less than 20 years. During the winter of 1924-1925, the population crashed. Ever since, wildlife biologists consider “Kaibab Plateau” to be synonymous with the dangers of predator control as a way to protect game populations.
What type of population growth occurred with the Kaibab deer?
However, lack of predators meant that there was no population control for the deer. Hence, the populace grew ten-fold to over 60,000 deer in 1920 and over 100,000 in 1924. Excessive population growth thus reached an uncontrollable maximum; food thence grew scarce due to internal competition.
What was the relationship of the deer herd population size and the carrying capacity of the range in?
What was the relationship of the deer herd to the carrying capacity of the range: in 1915: The deer herd was 5 below the carrying capacity. in 1920: the deer herd was 5 above the carrying capacity. Did the Forest Service program appear to be successful between 1905 and 1924?
What happened to the deer population between 1971 and 1980?
Describe what happened to the decr and wolf populations between 1971 and 1980. In 1971 the deer population had already reached the carrying capacity of the island. With little to no predation and a high birth rate, the population continued to rise rapidly Over the next two years.
What is the carrying capacity of the deer population on Walla Walla Island?
As a result, the deer population was well below its carrying capacity of 30,000. To protect the deer, hunting was banned, predators were exterminated and livestock grazing was limited.
Why did the Kaibab deer population increase?
In 1970, Graeme Caughley suggested that the mule deer population explosion on the Kaibab Plateau was due more to the recovery of the range than to the disappearance of predators. It turns out that while predators were being removed from the area, so were domestic livestock.
What happened to the deer population of the Kaibab Plateau over time?
Conclusion. The Kaibab Plateau had a decline in deer population due to increased competition for grazing fields by cattle and a rise in the number of predators feeding on the deer.
What caused the Kaibab deer population to collapse?
From 1906 through 1923, government hunters and trappers removed predators from the Kaibab Plateau along the north rim of Arizona’s Grand Canyon. Under greatly reduced predator pressure, the deer herd exploded to more than 100,000 in less than 20 years. During the winter of 1924-1925, the population crashed.
What happens when deer are above their carrying capacity?
During the time the deer population is above the habitat’s carrying capacity is when the most damage to the habitat can occur. This is also a time when deer are in very poor condition and death due to malnutrition or starvation can occur.
How big was the deer population in 1974?
The experiment was repeated in 1974 with 10 deer. This time the population grew to 212 deer in only 6 years. These experiments demonstrate the tremendous capacity for deer population growth when occupying good habitat.
When did the deer population begin to recover?
However, some deer survived in the deep swamps and margins, and as formerly deforested habitats grew into second growth forests, the deer population began to recover. LDWF began managing deer in the late 1940s, setting seasons and restocking deer.
What was the population of deer in 1905?
Deer Population from 1905 to 1924 Year Deer population 1905 4 000 1910 9 000 1915 25 000 1920 65 000 1924 100 000 A Kaibab Deer Investigating Committee recommended that all livestock not owned by local residents be removed immediately from the range and that the number of deer be cut in half as quickly as possible.