Community Ecology

AP Biology· difficulty 4/5

Three functional response curves describe predator consumption rate vs. prey density.

The sigmoidal Type III response is associated with:

A
$Saturating consumption with no low-density refuge$
B
$Predator switching among prey or learning, providing prey refuge at low density$
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C
$Linear, density-independent consumption$
D
$Decline of predators with prey$

Explanation

Type III functional responses arise from prey switching, learning, or refuges at low density, producing low predation when prey are scarce.

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