Scelta multipla
Which of the following statements best describes age structure diagrams?
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50. Population Ecology
Introduction to Population Ecology
Scelta multipla
Which change would cause an increase in the size of a population?
A
Increased emigration
B
Higher birth rate than death rate
C
Higher death rate than birth rate
D
Decreased immigration
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Understand the concept of population dynamics: Population size is influenced by four main factors: birth rate, death rate, immigration, and emigration.
Define birth rate and death rate: Birth rate is the number of births per unit time, while death rate is the number of deaths per unit time.
Define immigration and emigration: Immigration is the arrival of new individuals into a population, while emigration is the departure of individuals from a population.
Analyze the options: An increase in population size occurs when the birth rate is higher than the death rate, or when immigration exceeds emigration.
Identify the correct change: A higher birth rate than death rate would lead to an increase in population size, as more individuals are being added to the population than are leaving or dying.
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