Ch.9: Predation Risk and Antipredator Behaviors

These flashcards cover key concepts related to predation risk and behaviors animals utilize to avoid being preyed upon.

Cryptic Coloration

A form of camouflage that allows animals to avoid detection by predators.

Antipredator Behavior

Behaviors that animals exhibit to avoid being detected or attacked by predators.

Vigilance Behavior

The act of scanning the environment for predators, often at the cost of other activities like feeding.

Selfish Herd Hypothesis

The idea that individuals can reduce their predation risk by positioning themselves in the center of a group.

Predation Risk

The likelihood that an animal will be attacked by a predator.

Dilution Effect

The reduced probability of an individual being captured by a predator as group size increases.

Startle Display

A sudden movement or change that exposes bright colors or makes noise to deter predators.

Pursuit-Deterrence Hypothesis

The idea that some animals signal to predators that they have been detected, reducing the likelihood of being chased.

Alarm Signal Hypothesis

The idea that advertisement behaviors warn conspecifics of nearby predators.

Trade-Offs

Decisions that involve sacrificing one behavior for another, often seen in contexts like feeding versus vigilance.