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Invasive species
No species is inherently invasive. Rattlesnakes are found through much of North America, where they are not invasive.
A species is not inherently native or invasive. All species on Earth have a region to which they are native. If they are introduced to a new area, then they are invasive to that area. The orca has a cosmopolitan distribution, so it is native to oceans pretty much everywhere.
Invasive to where exactly ! Remember - reptiles have been around much longer than people have. The only reason any species becomes labelled as 'invasive' is when it encounters humans - where people have built towns & cities on land that was previously for the exclusive use of animals. Actually - the only 'invasive' species on this planet is the human race ! Before man developed his interest in exploration, the planet lived a perfectly balanced existence !
Invasive species have such an impact on the environment because they basically have no naturally known enimies. If they come from a different land, the organisms that are already living there aren't used to the envasive species being there, and have no natural defense against them. The invasive species will devour all it wants, and can wipe out an entire population of a species in an area.
They have been around much longer than they have been invasive. They only became invasive when human activity transported them from their native environment to a different one without the predators that kept their populations under control. In this new environment their populations explode exponentially and they invade more and more space in that environment, pushing native species towards extinction in some cases.
Insect populations are regulated in much the same way as other species and types of animals. Predation, diseases, habitat infringement, invasive species all play a part in regulation.
Non-native species that are superior competitors... Apex
First, make sure that they are legal in your area. They are not in some states because they are considered invasive species. If they are, they should be fairly inexpensive as they grow rapidly.
It varies enormously with species/sub-species of CANADA goose.
They have been around much longer than they have been invasive. They only became invasive when human activity transported them from their native environment to a different one without the predators that kept their populations under control. In this new environment their populations explode exponentially and they invade more and more space in that environment, pushing native species towards extinction in some cases.
Anoplophora glabripennis or the Asian long horned beetle are from eastern Asia. However, they have made their way to North American and are a quite invasive species causing much damage.