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Certain species of insects introduced accidentally in a forest are destroying all the Douglas fir trees in that forest. The wood of these trees is extensively used for construction. In order to control the damage caused by these insects, the forestry department decided to introduce the moth caterpillar in the forest. These caterpillars are natural predators of the insects. Which method did the forestry department implement to control the invasive species?

The forestry department implemented a(n) __________________ control method.

Match the invasive species to its benefits.

provides food for native species

Match the invasive species to its benefits.

restores degraded land

Which method involves controlling an invasive species by removing plants from their roots?

The introduction of Asian carp to the United States is an example of which type of pathway for invasive species?

Rainbow trout is non-native to the United States. However, this species is breeding with the native Gila trout. Scientists recently observed that the Gila trout were becoming extinct.

What is the cause of their extinction?

The European buckthorn was introduced to North America as an ornamental plant. However, this plant is now a major threat to many woodlands across the continent.

The European buckthorn was introduced to North American woodlands through which vector?

A tiny insect called the hemlock woolly adelgid is threatening the sustainability of the eastern hemlock in the United States. These insects are native to Japan and were introduced to the United States through vehicles carrying wood boxes. The invasive species in this scenario was introduced to the United States through which pathway?

The bighead carp, a fish that is non-native to the Missouri River, feeds on plankton. Many native fish species, such as the paddle fish, also feed on plankton. The feeding cycle of paddle fish is slower than that of the carp. The carp are eating up all the plankton in the river, and there is hardly any food left for the paddle fish. How will this impact the ecosystem of the Missouri River?