Multiple Choice
Which change would cause an increase in the size of a population?
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50. Population Ecology
Introduction to Population Ecology
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Which of the following is most likely to contribute to density-dependent regulation of populations?
A
Random genetic mutations
B
Climate change
C
Natural disasters
D
Competition for resources
Verified step by step guidance1
Understand the concept of density-dependent factors: These are factors that affect the population size in relation to the population's density. As the population density increases, these factors have a greater impact.
Identify examples of density-dependent factors: Common examples include competition for resources, predation, disease, and waste accumulation. These factors intensify as the population grows.
Analyze the options given: Random genetic mutations, climate change, and natural disasters are typically density-independent factors, meaning their effects do not depend on the population density.
Focus on competition for resources: As population density increases, individuals compete more for limited resources such as food, water, and shelter. This competition can limit population growth, making it a density-dependent factor.
Conclude that competition for resources is the most likely factor to contribute to density-dependent regulation of populations, as it directly relates to the population's density and availability of resources.
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