Key Idea.
Section 1
The Math of Populations
Biologists track the health of a population by analyzing numbers. A population is a system where organisms are constantly being added through births and removed through deaths.
By comparing these two rates on a graph, scientists can determine the population's trajectory.
Section 2
Calculating Growth and Decline
The size of a population changes based on a simple inequality. If the number of births is greater than the number of deaths, the population size will increase.
Conversely, if the number of deaths is greater than the number of births, the population size will decrease. This mathematical relationship is the fundamental rule of population dynamics.
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Section 1
The Math of Populations
Biologists track the health of a population by analyzing numbers. A population is a system where organisms are constantly being added through births and removed through deaths.
By comparing these two rates on a graph, scientists can determine the population's trajectory.
Section 2
Calculating Growth and Decline
The size of a population changes based on a simple inequality. If the number of births is greater than the number of deaths, the population size will increase.
Conversely, if the number of deaths is greater than the number of births, the population size will decrease. This mathematical relationship is the fundamental rule of population dynamics.
Book overview
Jump across lessons in the current chapter without opening the full course modal.
Continue this chapter