Multiple Choice
Which of the following is an example of a population?
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50. Population Ecology
Introduction to Population Ecology
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Which of the following conditions would most likely lead to a decrease in population size?
A
Increased predation and limited food resources
B
High birth rates and low death rates
C
Stable climate and high immigration rates
D
Abundant resources and low competition
Verified step by step guidance1
Identify the factors that influence population size, such as birth rates, death rates, immigration, emigration, availability of resources, and predation.
Consider how increased predation affects a population. Increased predation typically leads to higher death rates, which can decrease population size.
Evaluate the impact of limited food resources. Limited food resources can lead to starvation and malnutrition, increasing death rates and decreasing birth rates, thus reducing population size.
Analyze the other options: High birth rates and low death rates generally lead to population growth, not decrease. Stable climate and high immigration rates can also contribute to population growth. Abundant resources and low competition typically support population growth.
Conclude that the combination of increased predation and limited food resources is most likely to lead to a decrease in population size, as both factors contribute to higher mortality and lower reproduction rates.
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