Introduction of New Dung Beetle Species into Australia Eventually Resulted

question 93

Multiple Choice

Introduction of new dung beetle species into Australia eventually resulted in a species composition that enabled decomposition of built-up dung,improved soil quality and net primary productivity,and made cattle healthier.This series of events illustrates the value of

• A) extinctions.
• B) ecosystem services.
• C) ecological succession.
• D) ecological transitions.
• E) the theory of island biogeography.

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Definitions:

Stimulus Discrimination

The learned ability to differentiate between similar stimuli and respond appropriately to each.

Stimulus Generalization

The process by which a response that has been learned to one stimulus is elicited by a different, but similar, stimulus.

Spontaneous Recovery

The reappearance of a previously extinguished conditioned response after a period of rest, without any further conditioning.

Skinner Box

An experimental apparatus developed by B.F. Skinner for studying operant conditioning in animals, involving levers, stimuli, and rewards.