Predation Is Considered a Density-Dependent Factor That Controls the Population

question 6

Essay

Predation is considered a density-dependent factor that controls the population size of prey species. Give two examples of predators acting in density-dependent ways in response to fluctuations in the size of prey populations.

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Definitions:

Volcanic Domes

Rounded, mound-shaped landforms created by slow-moving lava that solidifies near the Earth's surface.

Calderas

Volcanic features characterized by their large, basin-like depressions formed following the evacuation of a magma chamber in a major eruption.

Pyroclastic Flows

Fast-moving currents of hot gas and volcanic materials (such as ash) that flow down the sides of a volcano during an explosive eruption.

Eruption Column

A towering cloud of ash, gas, and volcanic debris that rises above a volcano during an explosive eruption.