In Their Study of Diversity and Stability in Grassland Ecosystems

question 50

Multiple Choice

In their study of diversity and stability in grassland ecosystems, Tilman and his colleagues found that higher species richness in their plots had what effect on stability and productivity?

• A) All aspects of both stability and productivity increased.
• B) All aspects of both stability and productivity decreased.
• C) Productivity and stability of plant production increased, but species composition was not stable.
• D) Productivity increased, but stability of both species composition and plant production decreased.
• E) Stability of both plant production and species composition increased, but productivity decreased.

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Definitions:

Behavioral Economics

A field of economics that studies how psychological, cognitive, emotional, cultural, and social factors affect economic decision-making and behaviors.

Financial Gain

An increase in financial wealth, often resulting from investments or the operations of a business.

Sufficient Willpower

The necessary amount of determination and self-control required to achieve a goal or follow through with a decision.

Behavioral Economics

A field of economic study that examines how psychological, cognitive, emotional, cultural, and social factors affect economic decisions of individuals and institutions.