Predator-prey Relationships

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8 Terms

1
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What happens to the prey population when a predator kills its prey?
The prey population becomes smaller.
2
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What occurs when the birth and death rates of the prey population are in balance?
The prey population doesn't change much.
3
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What is observed in some communities instead of dynamic equilibrium?
Cyclic oscillations.
4
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What happens when prey numbers increase?

Increases food availability (increasing predatory numbers)

5
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What happens to prey numbers when predator numbers increase?
Prey numbers decrease.
6
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What effect does a fall in prey numbers have on the food availability for predators?

It decreases food availability for predators (decreasing predator numbers)

7
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What occurs when predator numbers fall?
Predation of prey decreases and prey numbers increase.
8
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What is the relationship between prey and predator populations in ecosystems?
They are interdependent; an increase in one leads to changes in the other.