Invasive species disrupt food chains
Invasive species eat native prey and kill native predators. Without prey, predators will starve. Without natural predators, the invasive species will reproduce, and their population will grow out of control.
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The Argument
Invasive species disrupt a habitat’s food chain. Cane toads were used to get rid of beetles that ate sugar cane, but they killed native predators and ate plants and small mammals too.[1] When invasive species start consuming native species, the food chain of the habitat is disrupted.
Counter arguments
Invasive species can change the food chain for the better. The red fox was a helpful hand in thinning out wild rabbits in Australia.[2] The rabbits were an invasive species that multiplied rapidly and became a problem. Therefore, the introduction of another invasive species worked well.
Proponents
Premises
[P1] Invasive species disrupt food chains.
[P2] Native species cannot survive if the food chain is changed.
Rejecting the premises
[Rejecting P1] Invasive species can refine the food chain.
[Rejecting P2] Native species can adapt to changes.