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Invasive species spread because they get introduced - either intentionally or accidentally - into areas where they have no natural controls or predators to check their population growth.

How they get into new places varies:

  • A common way is hitching the boat, trailer, boating equipment and fishing gear, including bait buckets. Zebra mussels are an example of that.
  • Cars, trucks and other motor vehicles can transport pests to new areas - like the Gypsy Moth.
  • Shipments from abroad can bring in new pests. The Asian Longhorn beetle was thought to have come in via wood pallets from China.
  • Asian carp were purposefully imported into the U.S. to eat algae and unwanted vegetation in catfish farms and sewage plants. They escaped during flooding.
  • Snakehead fish are thought to be purchased live and then purposely released.
  • Brown tree snakes might have gotten to Hawaii by hitching a ride on planes.
  • Dandelion was brought to America by European settlers who grew it for food and medicine.

Invasive species usually get here when someone byes a pet such as a snake and then puts it out in the wild and over time it makes its way to our area and becomes an invasive species. Or when we are in a different area the animal gets into our vehicle and comes to our normal location.
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7y ago

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