Kaibab Deer Population Dynamics

The video explains limiting factors in population growth, distinguishing between density-dependent and density-independent factors. It discusses a study on snowshoe hare and lynx populations, illustrating predator-prey dynamics. The Kaibab deer case study highlights the consequences of removing predators, leading to population overshoot and resource depletion. The video concludes by emphasizing the crucial role of limiting factors in maintaining ecological balance.

What are density-dependent factors in population growth?

• Factors that decrease with population density

• Factors related to weather phenomena

• Factors that are unaffected by population density

• Factors that increase with population density

Which of the following is a density-independent factor?

• Food competition

• Predation

• Disease

• Natural disasters

In the study of snowshoe hare and lynx, what happens when the lynx population grows too much?

• The lynx population stabilizes

• The hare population decreases

• The hare population increases

• The lynx population decreases

How does the lynx benefit from its relationship with the hare?

• By reducing competition for food

• By avoiding natural disasters

• By having a stable food source

• By increasing its population density

What was the initial carrying capacity estimated for the Kaibab deer in 1905?

• 40,000

• 20,000

• 30,000

• 50,000

What action did President Roosevelt take that led to the overpopulation of the Kaibab deer?

• Eliminated deer predators

• Increased food supply

• Introduced new predators

• Banned hunting

What was the consequence of eliminating predators for the Kaibab deer?

• Stable population growth

• Decreased deer population

• Overpopulation and resource depletion

• Increased food supply

What happened to the Kaibab deer population during the winters following the predator elimination?

• Over 60,000 deer died from starvation

• The population increased

• The population migrated

• The population stabilized

Why are limiting factors crucial in ecological balance?

• They eliminate predators

• They prevent overpopulation

• They increase food supply

• They cause natural disasters

What is the current status of the Kaibab deer and their predators?

• Predators are eliminated

• Deer are extinct

• Predators are highly protected

• Deer are overpopulated