Multiple Choice
Which of the following is a human activity that can cause ecosystem disruption?
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48. Ecology
Introduction to Ecology
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If a new predator that feeds on mice is introduced into an ecosystem, which of the following is the most likely immediate effect?
A
The population of mice will decrease due to increased predation.
B
The population of mice will increase due to reduced competition.
C
There will be no effect on the mouse population.
D
The population of plants eaten by mice will decrease.
Verified step by step guidance1
Understand the relationship between predators and prey in an ecosystem. Predators typically reduce the population of their prey through predation, which is a direct interaction.
Analyze the immediate effect of introducing a new predator into the ecosystem. The predator will likely begin feeding on the mice, increasing predation pressure on the mouse population.
Consider the population dynamics of mice. Increased predation typically leads to a decrease in the prey population, as more individuals are consumed before they can reproduce.
Evaluate the other options provided. For example, the population of mice increasing due to reduced competition is unlikely because the introduction of a predator does not reduce competition among mice; it increases mortality.
Assess the indirect effects on plants eaten by mice. While the population of plants may eventually increase due to fewer mice feeding on them, this is not the most immediate effect. The immediate effect is the decrease in the mouse population due to predation.
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