Exam 15: Predation

The profitability of a prey item

The costs of foraging can be measured in terms of the time and ________ expended in the act of foraging.

Which of the following is an induced defense?

________ is a deliberate form of hunting with a quick attack.

European kestrels feed on Microtus voles,with the "kill" rate,defined as the number of prey taken during the breeding season,as linearly proportional to the density of Microtus.This type of functional response is referred to as

A type ________ functional response describes the per capita rate of predation,which increases linearly with prey density.

The trade-off between conflicting demands faced by a predator is described by the ________ foraging theory.

The per capita rate at which predators consume prey is assumed to increase ________ with the number of prey.

The risk of predation can sometimes have a significant impact on the foraging choices made by animals.

________ mimicry occurs when many unpalatable or venomous species share a similar color pattern.

A type I functional response leads to regulation of the prey population by the predator.

Scavengers are heterotrophs.

Predators can induce changes in prey phenotype.

A species that consumes only animal tissue is called a(n)________.

Cryptic coloration is a strategy employed only by prey.

________ is the consumption of one living organism by another.

Most predator populations grow slowly in comparison to those of their prey.

Quantitative inhibitors in plants are toxic secondary compounds,often causing herbivores to avoid their consumption.