9. Alien species and biological control

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What can some alien species become

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11 Terms

1

What can some alien species become

Invasive and cause problems

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2

What may alien species have

No predators in an area so their population may grow out of control

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3

What happens if invasive species grow faster than native species

It can cause natural imbalance of the ecosystem as native species can’t compete with them

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4

What could alien species do

Prey on existing species, reducing their number

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5

What may some alien species carry

Diseases which they are immune to, but existing populations are not

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6

What are deliberately done to some species

Introduced to control pest species which is an example of biological control

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7

What does biological control involve

Using living organisms instead of pesticides

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8

What happened in the early days of biological control

The process went wrong and the introduced predator caused a problem

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9

What is an example of biological control GONE WRONG!!

Some bio control populations grew rapidly because they had no predators / ate species apart from the pest species

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10

what can biological control GONE WRONG cause

Negative implications on local wildlife

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11

what are needed for biological control

Research trials to assess the effects of biological control agents on non targeted native species

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