Invasive Species

What is a common misconception about invasive species?

• All non-native species are harmful; some can coexist without causing problems.

• Invasive species are always plants and not animals.

• All invasive species can be easily eradicated.

• Invasive species only affect local wildlife and not ecosystems.

What is an invasive species?

• A native organism that thrives in its natural habitat.

• A non-native organism that can cause harm to the ecosystem, economy, or human health.

• A species that is endangered and needs protection.

• An organism that is beneficial to the environment.

What role do predators play in controlling invasive species?

• Predators can help control invasive species populations by preying on them, thus reducing their impact on native species.

• Predators increase the population of invasive species by competing for resources.

• Predators have no effect on invasive species and their populations remain stable.

• Predators only affect native species and do not interact with invasive species.

How can invasive species affect agriculture?

• They can improve crop yields by providing nutrients.

• They can damage crops, reduce yields, and increase the cost of farming due to the need for control measures.

• They have no effect on agriculture whatsoever.

• They can help in pest control and reduce the need for pesticides.

What happens when an invasive species reproduces rapidly?

• It becomes extinct due to lack of resources.

• It can dominate the ecosystem, outcompeting native species for resources.

• It has no effect on the ecosystem.

• It helps native species thrive by providing new resources.

What is the difference between native and invasive species?

• Native species are organisms that naturally occur in a specific area, while invasive species are non-native and can disrupt the local ecosystem.

• Native species are always beneficial to the ecosystem, while invasive species are harmless.

• Native species can be found in multiple regions, while invasive species are restricted to one area.

• Native species are larger than invasive species.

What is an example of an invasive species in Australia?

• The European rabbit

• The red kangaroo

• The koala

• The emu

Why are invasive species a problem?

• They can enhance biodiversity by introducing new species.

• They can outcompete native species for resources, disrupt food chains, and lead to the decline or extinction of native species.

• They have no significant impact on the ecosystem.

• They are beneficial for the economy by creating new markets.

What is the role of competition in ecosystems?

• Competition is a natural process where species compete for limited resources, which helps maintain balance in ecosystems.

• Competition leads to the extinction of weaker species, disrupting ecosystem balance.

• Competition has no significant impact on ecosystems and is often negligible.

• Competition only occurs among similar species and does not affect biodiversity.

What is one way to control invasive species?

• Introducing natural predators or diseases.

• Planting more native species.

• Increasing chemical pesticide use.

• Creating more habitats for invasive species.