Non-Native Invasion


Non-Native icon. Non-Native Invasion The number of non-native plants and animals found in North America has risen dramatically with the increase in travel andPhoto: Inspecting for non-native insects. commerce. These invasive species put ecological pressure on the native species with which they compete for resources.



Join host Greg Grandy and the Enviro-Tacklebox? student reporters as they explore some environmental impacts and measures used to control invasive species. Viewers will travel to Boston's Logan Airport, Stone Laboratory in Ohio, the New Orleans Port, and the swamps of Louisiana.
Each year non-native species cause millions of dollars of damage and problems for individuals, governments, businesses and industries.
Image: Brown rat aboard ship.
Photo: Kudzu Photo: Loosestrife bloom

Non-native plants and animals that get into the natural environment and begin to reproduce in large numbers can be a threat to native animals and plants in the environment. The most common reasons non-native species thrive in a new environment is because abundant food sources are available and they have few, if any, natural predators or parasites to moderate their growth.
Photo: Loosestrife beetle One place to find non-native species in North American today are in zoos or botanical gardens. The animals and plants in zoos and gardens generally do not pose a threat to the local environment because of their small numbers and the fact they are confined within small designated area. It is often difficult for them to readily reproduce or get into the surrounding environment.

 

Image: Asian Longhorne Beetle.
Asian Longhorne Beetle.

Photo: Mongoose
Mongoose

Photo: Loosestrife beetle
Loosestrife beetle
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