When Wolves Were Returned to Yellowstone National Park in 1995

question 12

Essay

When wolves were returned to Yellowstone National Park in 1995, they immediately began feeding on elk, reducing their numbers. This allowed aspen trees to increase in abundance, which ushered in the return of beaver populations. As beaver populations dammed streams, they slowed water flow and stabilized streambanks. The stabilization of streambanks increased riparian habitat in which songbirds could nest, and the ponds provided breeding habitat for amphibians. Explain this story using the concepts of top-down and bottom-up control.

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Definitions:

Temper Tantrum

An emotional outburst, typically characterized by crying, screaming, or stubbornness, often occurring in young children as a response to frustration or lack of control.

Regressing

The act of returning to a previous state or condition, often in psychological contexts referring to a return to earlier stages of behavior or development.

Displacing

The process of transferring feelings or emotions from the original source to another target.

Health Psychology

The study of psychological and behavioral processes in health, illness, and healthcare, aiming to improve health through understanding and intervention.