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๐ŸงฌAP Biology Review

QR code for AP Biology practice questions

Population Ecology

๐ŸงฌAP Biology
Review

Population Ecology

Written by the Fiveable Content Team โ€ข Last updated September 2025
Verified for the 2026 exam
Verified for the 2026 examโ€ขWritten by the Fiveable Content Team โ€ข Last updated September 2025

Resources

In this session, we cover aspects of population ecology. We learn that ecology is the study of interactions organisms have with their environments and with each other. In addition, we look at how to calculate population growth with three simple math problems and discuss the differences between exponential and logistic growth. Furthermore, we review abiotic (nonliving) and biotic (living) factor examples, such as temperature, rocks, light, and plants. We end the session with an idea of how density dependent and density independent factors differ, followed by a practice problem that illustrates how to calculate carrying capacity.