Exam 14: Predation

A type II functional response is the most commonly reported for predators.

The sigmoidal relationship between prey density and per capita predation rate in a type III functional response can be explained by all of the following factors, EXCEPT

Which of these are stimulated by the presence of predators?

The profitability of a prey item

The central importance of predator-prey interactions to the population regulation of each is widely accepted by ecologists.

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

Pursuit hunting is typical of reptile and amphibian species.

Graphically illustrate an example of the three-way interaction between a carnivore, an herbivore, and a plant. Explain how the plant is affected by both direct and indirect interactions.

Typically, ________ do not kill the individuals they feed on.

Which of the following is an example of Mullerian mimicry?

Decomposers and scavengers are known as

Costs can be measured in terms of the ________ and energy expended in the act of foraging, and benefits should be measured in terms of ________.

A predator's ________ is the increase in predator reproduction in response to an increase in the consumption of prey.

The cycle of change in the size of predator and prey populations in response to the other is known as ________.

Object resemblance is an effective but very uncommon predator avoidance strategy among insects.

Compare and contrast the three types of predation.

The relationship between the per capita rate of consumption and the number of prey is known as the predator's ________.

In Mullerian mimicry, one poisonous prey species has evolved the same warning colouration as another poisonous prey species.

Many plants use ________ defences, such as hairy leaves, thorns, or spines to deter herbivory.

Using specific examples, explain the numerical response of predator numbers to prey density.