Question

1. The greater sage-grouse is a
bird that lives in a sagebrush
habitat. Use the slider to compare
its ranges in the past and today.
Why do you think the range may
have changed?

Answer 1

Answer:

The population of sage-grouse decreases with the passage of time because of humans.

Explanation:

In the past, long time ago the population of sage-grouse bird were in millions in the Western United States of America and Canada but gradually decrease occurs in population with the passage of time due to the change which occurs in the environment by humans. Destroying the natural habitat for making buildings and for energy development decrease the population of sage-grouse from 16 million to 500,000 during 100 years.

Answer 2

The ranges of the Greater sage-grouse have changed over time due to the expansion of human civilizations.

The Greater sage-grouse is a large hen-like bird that resides in sagebrush-covered areas. The ranges that this wild bird inhabits have historically spanned all throughout the United States and parts of Canada, including:

• Washington
• Montana
• California
• Wyoming
• Utah

and many other states.

The current range of the greater sage-grouse now only spans the Western United States and parts of Canada. This decrease in range is due to loss of habitat, interrupted migration patterns by the construction of roads, power lines, etc., and other human disturbances.

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