When exotic species are introduced into a new ecosystem, they often don't encounter the same factors that controlled the exotic species population or growth that was in the original ecosystem.
When exotic species are introduced into a new ecosystem, they often don't encounter the same factors that controlled the exotic species population or growth that was in the original ecosystem.
Exotic species often do not have any population controls. As such, they over multiply and decimate whatever organisms they eat in their new environment. For example, when rabbits were introduced to Australia, the multiplied extremely rapidly, and they had no significant predators to control their booming population. As a result, the rabbits overgrazed the land, causing desertification. The rabbit problem still is not under control.
Some species are native, that live in a certain area. Once a different species that doesn't belong there comes in, it becomes an invasiv species, and the invasive species take over the native. That's how.
Because if the animal is new to the enviroment it may spread disese or might eat to much of one thing that a another animal might need to eat to survive and destory the ecosystem!
When exotic species are introduced into a new ecosystem, they often don't encounter the same factors that controlled the exotic species population or growth that was in the original ecosystem.
This answer is not very simple. You see there really are no exotic animals in the ocean ecosystem. Mabye a couple sharks and all.
Its when exotic species destroy or alture the ecosystems of native species
New species are introduced into areas to either get rid of another animal e.g. the cane toad came to Australia to get rid of some kind of bug or and animal is accidentally taken to another country.
The term is biodiversity. High biodiversity means a large number of different species in an ecosystem. An ecosystem with many different species is less likely to be disrupted by environmental changes.
When exotic species are introduced into a new ecosystem, they often don't encounter the same factors that controlled the exotic species population or growth that was in the original ecosystem.
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non-native species , and habitat destruction
In an ecosystem, a large number of species are dependent of one species of bird. This species of bird is an example of a keystone species.
Exotic species are simply those that do not belong in your particular habitat. They are harmful because when they are introduced into your habitat they compete with some native species and threaten to make it extinct. Such is happening with the European starling and many native North America birds.
It can if a species is over fished there needs to be constant conservation and protections of fish to keep their numbers up.
Exotic Species.
Platypuses do not "threaten" other species. Platypuses feed on a variety of small invertebrates, but they do not threaten these species, as the creatures are plentiful.