Key Idea.
Section 1
Investigating the Explosion
Analyzing data from the Glacier Sea reveals a dramatic change: a massive explosion in the Moon Jelly population.
Understanding the population as a system of inputs and outputs, scientists conclude that this increase is not random. It must be driven by a specific change in the ratio of births to deaths.
Section 2
Inputs vs. Outputs
To explain the population explosion, we apply the rules of dynamics. Since the population increased, we know for a fact that the number of births was greater than the number of deaths for a sustained period.
The investigation now focuses on finding the cause: did births go up (more food?), or did deaths go down (fewer predators?)?
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Section 1
Investigating the Explosion
Analyzing data from the Glacier Sea reveals a dramatic change: a massive explosion in the Moon Jelly population.
Understanding the population as a system of inputs and outputs, scientists conclude that this increase is not random. It must be driven by a specific change in the ratio of births to deaths.
Section 2
Inputs vs. Outputs
To explain the population explosion, we apply the rules of dynamics. Since the population increased, we know for a fact that the number of births was greater than the number of deaths for a sustained period.
The investigation now focuses on finding the cause: did births go up (more food?), or did deaths go down (fewer predators?)?
Book overview
Jump across lessons in the current chapter without opening the full course modal.
Continue this chapter