1 Classroom Period
The scientists were interested in discovering whether the Pacific tree frog population might also be affected by the presence of nonnative trout, similar…
The scientists were interested in discovering whether the Pacific tree frog population might also be affected by the presence of nonnative trout, similar to the way these trout had affected the mountain yellow-legged frog population....
In the Western United States, spotted knapweed is one of the most widely found nonnative plants. Spotted knapweed was brought to the United…
In the Western United States, spotted knapweed is one of the most widely found nonnative plants. Spotted knapweed was brought to the United States from Eastern Europe in the early 1900s. To control the...
Sudden oak death is a new disease of trees and plants in the United States and Europe. Although scientists are not certain,…
Sudden oak death is a new disease of trees and plants in the United States and Europe. Although scientists are not certain, they believe the fungus-like organism that causes sudden oak death was brought...
The pine shoot beetle is an invasive species in the Great Lakes region of the United States. The pine shoot beetle was brought…
The pine shoot beetle is an invasive species in the Great Lakes region of the United States. The pine shoot beetle was brought to the United States from Europe, Asia, and northern Africa. The...
The Asian long-horned beetle is an insect pest that was discovered in New York in 1996 and Chicago in 1998. It arrived…
The Asian long-horned beetle is an insect pest that was discovered in New York in 1996 and Chicago in 1998. It arrived in the United States on wood packing material that was being used...
The Oriental bittersweet is a vine that was transported to the United States from Asia in 1860. Oriental bittersweet escaped from gardens and…
The Oriental bittersweet is a vine that was transported to the United States from Asia in 1860. Oriental bittersweet escaped from gardens and has spread into natural areas where it is not native. When...
In this study, the scientists wanted to identify the most important elements of an experience in Gates of the Arctic…
In this study, the scientists wanted to identify the most important elements of an experience in Gates of the Arctic National Park and Preserve.
When a society decides to set aside areas of land as wilderness, it makes a choice about the value of…
When a society decides to set aside areas of land as wilderness, it makes a choice about the value of those lands. In the United States, people have decided that...
According to the scientists in this study, wildness is one of the central qualities of wilderness. To say that an…
According to the scientists in this study, wildness is one of the central qualities of wilderness. To say that an area is wild in this sense, the scientists believed that...
One of the ways that social scientists determine how much benefit people receive from something is to find out how…
One of the ways that social scientists determine how much benefit people receive from something is to find out how much they would be willing to pay for it. In...