Ecological Impact of Browsing Bears and Beavers Quiz

6 Questions

What ecological process do Browsing Bears initiate?

Browsing Bears initiate an ecological process of moving down the food chain.

What happened in Yellowstone National Park due to the absence of Browsing Bears?

Beavers took advantage of the opportunity to grow and thrive without competition.

What impact did the beaver activity have on the vegetation?

Beavers damaged the vegetation to create ponds for their dams, but new vegetation grew back in the areas disturbed by beavers.

What led to the increase in the number of beaver lodges?

There was a fivefold increase in the number of beaver lodges in six years due to the beavers taking advantage of the absence of competition.

What effect did the beaver activity have on the river systems?

Beaver activity led to changes in river systems, causing fewer erosion sites, which led to more stable rivers and less prone to flooding.

What was the ultimate result of the beaver dams on the ecosystem?

The beaver dams provided shelter and food for various species, leading to the rise of other animals and an increase in the population of certain bird species.

Study Notes

Discovery of Browsering Bears (Nutria) made by a researcher in the last century.
Widespread distribution of Browsing Bears, an ecological process.
Browning Bears begin the process at the top of the food chain and move down.
Absence of Browning Bears in Yellowstone National Park for 70 years.
Beavers took advantage of the opportunity to grow and thrive without competition.
Beavers damaged the vegetation to create ponds for their dams.
Fivefold increase in the number of beaver lodges in six years.
New vegetation grew back in the areas disturbed by beavers.
Birds started nesting in the newly created habitats.
Population of certain bird species increased significantly.
The number of beaver dams increased, creating more water habitats for various species.
Rise of other animals, including muskrats, mink, otters, and beavers, due to the increased food availability.
Decrease in the number of elk and deer due to the beaver-induced increase in vegetation cover.
Beaver activity led to changes in river systems.
Fewer erosion sites, causing less damage to the soil.
Rivers became more stable and less prone to flooding.
Beavers damming rivers led to the growth of new vegetation.
New vegetation attracted various species of birds and animals.
Beaver dams provided shelter and food for various species.
Beaver dams created more stable water sources for fish and other aquatic species.
Browning Bears, despite their small population, caused a ripple effect in the ecosystem.