​A Population Ecologist Wants to Estimate the Size of a Robin

question 79

Multiple Choice

​A population ecologist wants to estimate the size of a robin population. In an apple orchard, she captures 10 robins, marks them, and then releases them. She returns several weeks later and captures another 10 robins, of which 2 are robins she previously marked. The estimated population size of robins is ____.

• A) ​50
• B) ​15
• C) ​10
• D) ​200
• E) ​20

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Definitions:

Risk Barrier

A hurdle or challenge that must be overcome to achieve a goal, often related to uncertainty or potential losses in business or investment.

Diffusion of Innovation

The process by which a new idea, product, or behavior spreads through a population or society.

Information Sources

Various origins from which data or knowledge can be obtained, including books, internet, experts, or empirical observation.

Psychological Barrier

Mental or emotional resistance that inhibits a person from accepting, understanding, or acting upon a new idea or behavior.