Wolves and Ecosystem Dynamics

Wolves and Ecosystem Dynamics

Assessment

Interactive Video

Biology, Science, Geography, History

7th - 12th Grade

Practice Problem

Easy

Created by

Liam Anderson

Used 8+ times

FREE Resource

In 1995, 14 wolves were reintroduced to Yellowstone National Park, revitalizing its ecosystem. The park, established in 1872, had seen its wolf population hunted to extinction by 1926, leading to ecological imbalance. The absence of wolves caused overgrazing by elk, affecting vegetation and other species. Recognized as endangered in 1974, efforts to restore wolves began, facing funding and legislative challenges. By 1995, wolves were reintroduced, reducing elk numbers and allowing vegetation and other species to recover. However, recent legislative measures threaten their survival, highlighting the fragility of conservation efforts.

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10 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What year were 14 wolves reintroduced to Yellowstone National Park?

2005

1995

1990

2000

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Who signed the National Park Protection Act into law?

Theodore Roosevelt

Ulysses S. Grant

Woodrow Wilson

Abraham Lincoln

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

By what year had all the northern Rocky Mountain wolf packs been hunted to extinction?

1900

1926

1974

1950

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is a trophic cascade?

A conservation strategy

A method of wolf hunting

A series of changes in an ecosystem caused by the removal of a top predator

A type of waterfall

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which species used willows to create their dams?

Elk

Beavers

Bears

Foxes

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

In what year was the Great Wolf officially recognized as endangered?

1980

1974

1965

1991

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How many gray wolves were relocated from Canada to Yellowstone?

50

31

75

14

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