Wolf Reintroduction in Yellowstone Quiz

When were wolves reintroduced into the Greater Yellowstone Ecosystem?

• 1985

• 1995

• 2005

• 2015

Answer explanation

Wolves were reintroduced into the Greater Yellowstone Ecosystem in 1995 after being absent for nearly 70 years. This reintroduction aimed to restore ecological balance and has had significant positive effects on the ecosystem.

Tags

CCSS.RI.3.5

CCSS.RI.4.5

CCSS.RI.5.5

CCSS.RI.6.5

CCSS.RI.7.5

What was the state of beaver colonies before wolf reintroduction?

• Many colonies

• No colonies

• Only one colony

• Hundreds of colonies

Answer explanation

Before wolf reintroduction, beaver populations were severely diminished, resulting in only one colony remaining. This highlights the significant impact of predator presence on ecosystem balance.

Tags

CCSS.RI.3.3

CCSS.RI.4.3

CCSS.RI.5.3

CCSS.RI.6.3

CCSS.RI.7.3

What is the role of Brodie Farquhar in the document?

• Photographer

• Author

• Editor

• Park ranger

Answer explanation

Brodie Farquhar is identified as the author in the document, indicating that he is responsible for writing the content, which distinguishes him from roles like photographer, editor, or park ranger.

Tags

CCSS.RI.4.3

CCSS.RI.4.5

CCSS.RI.5.3

CCSS.RI.5.5

CCSS.RI.6.3

What is the document's publication date?

• January 22, 2023

• June 22, 2023

• March 22, 2023

• December 22, 2023

Answer explanation

The document's publication date is June 22, 2023, as indicated in the text. The other dates do not match the correct publication date.

Tags

CCSS.RI.4.7

CCSS.RI.5.7

CCSS.RI.6.7

CCSS.RL.5.7

CCSS.RL.6.7

What effect did the presence of wolves have on the ecosystem?

• No effect

• Immediate changes

• A cascade effect

• Only affected plants

Answer explanation

The presence of wolves creates a cascade effect in the ecosystem by regulating prey populations, which in turn affects vegetation and other species, demonstrating their crucial role in maintaining ecological balance.

Tags

CCSS.RI.3.3

CCSS.RI.4.3

CCSS.RI.5.3

CCSS.RI.6.3

CCSS.RI.7.3

What did the elk do that was tough for beavers?

• Ate all the fish

• Browsed heavily on young willow, aspen, and cottonwood plants

• Dug up beaver dams

• Blocked rivers

Answer explanation

The elk browsed heavily on young willow, aspen, and cottonwood plants, which are important food sources for beavers. This competition for food makes it tough for beavers to thrive in their habitat.

Tags

CCSS.RI.3.3

CCSS.RI.4.3

CCSS.RI.5.3

CCSS.RI.6.3

CCSS.RI.7.3

What is one of the factors that may have affected the rebound of the beaver in Yellowstone?

• Increased rainfall

• 1988 Yellowstone fires

• Introduction of new species

• Decrease in predators

Answer explanation

The 1988 Yellowstone fires created new habitats and increased food availability, which contributed to the beaver's rebound in the area. This ecological change played a significant role in their population recovery.

Tags

CCSS.RI.3.3

CCSS.RI.4.3

CCSS.RI.5.3

CCSS.RI.6.3

CCSS.RI.7.3

What is the main topic discussed in the section titled "Yellowstone Wolf Trophic Cascade"?

• The diet of wolves

• The effects of removing a species from an ecosystem

• The migration patterns of elk

• The growth of plant life in Yellowstone

Answer explanation

The section "Yellowstone Wolf Trophic Cascade" primarily discusses how the removal of wolves from Yellowstone affected the entire ecosystem, illustrating the significant impact of species loss on ecological balance.

Tags

CCSS.RI.4.2

CCSS.RI.5.2

CCSS.RI.6.2

CCSS.RL.4.2

CCSS.RL.5.2

What is the focus of the scientific research frenzy mentioned by Smith?

• Climate change

• Feeding habits of elk

• Trophic cascades

• Plant growth

Answer explanation

The scientific research frenzy mentioned by Smith focuses on trophic cascades, which are ecological phenomena that occur when a change in the population of one species affects the entire ecosystem, highlighting its importance.

Tags

CCSS.RL.2.6

CCSS.RL.8.3

What does the text suggest about the winters in Yellowstone?

• They are getting colder

• They are becoming warmer and drier

• They are staying the same

• They are becoming wetter

Answer explanation

The text indicates that winters in Yellowstone are becoming warmer and drier, which is reflected in the correct answer choice. This suggests a shift in climate patterns affecting the region.

Tags

CCSS.RI.4.9

CCSS.RI.5.9

CCSS.RI.6.2

CCSS.RL.4.2

CCSS.RL.5.2