---
title: "Density Dependent Factors — AP Enviro Definition & Exam Guide"
description: "Density dependent factors are population limits like competition, predation, and disease that hit harder as a population gets crowded — key to AP Enviro Unit 3 carrying capacity."
canonical: "https://fiveable.me/ap-enviro/key-terms/density-dependent-factors"
type: "key-term"
subject: "AP Environmental Science"
---

# Density Dependent Factors — AP Enviro Definition & Exam Guide

## Definition

Density dependent factors are environmental factors whose effects on populations depend on their density. These factors include competition for resources, predation, and disease transmission.

## Related Study Guides

- [3.8 Human Population Dynamics](/ap-enviro/unit-3/human-population-dynamics/study-guide/g1a8MMUTre14Qa5OfsU1)

## Review

### Related Terms

- Intraspecific Competition: Intraspecific competition refers to the competition between individuals of the same species for limited resources.
- Predator-Prey Interactions: Predator-prey interactions involve the relationship between predators (animals that hunt and kill other animals) and their prey (animals that are hunted and killed by predators).
- Disease Dynamics: Disease dynamics refer to how diseases spread within populations, including factors such as transmission rates and host resistance.