Ecosystem Population Dynamics

The video tutorial covers the dynamics between predator and prey populations, factors affecting populations such as competition and resource limitations, and the concepts of limiting factors and carrying capacity. It uses examples to illustrate how these factors influence population sizes and explains how populations oscillate around their carrying capacity, maintaining stability in ecosystems.

What happens to prey populations when predator numbers increase significantly?

• Prey populations become extinct

• Prey populations increase

• Prey populations decrease

• Prey populations remain stable

Which of the following is considered a limiting factor in an ecosystem?

• The amount of sunlight

• The availability of water

• The number of predators

• The size of the ecosystem

In the factory analogy, what was the limiting factor for stool production?

• The number of tools

• The number of workers

• The number of seats

• The number of legs

What is the term for the maximum population size an environment can support?

• Population density

• Carrying capacity

• Limiting factor

• Resource availability

What might happen to a population that exceeds its carrying capacity?

• The population will continue to grow

• The population will stabilize

• Some individuals may die or migrate

• The population will become extinct

If a pond has enough food for 100 frogs but only enough space for 50, what is the limiting factor?

• Oxygen

• Space

• Food

• Water

In a field with enough food for 30 rabbits, what is the carrying capacity?

• 200 rabbits

• 100 rabbits

• 50 rabbits

• 30 rabbits

What typically happens to a population when it oscillates around its carrying capacity?

• It fluctuates slightly

• It decreases dramatically

• It remains constant

• It increases dramatically

What is the primary cause of population oscillation around carrying capacity?

• Sudden environmental changes

• Migration patterns

• Predator-prey interactions

• Resource availability

In the squirrel population example, what caused the population to decrease after exceeding carrying capacity?

• Increased birth rates

• Lack of predators

• Excessive food supply

• Resource depletion