Native Species

What is the definition of a native species?

• A species which is local and has lived in the same ecosystem.

• A species which travels to many ecosystems as long as they are in Australia.

• A species which was once introduced but so old that is very common.

• A species which competes with other native species.

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When introduced to a new habitat, non-native plants often threaten the native plants. Why is this?

• Non-native plants eat the native plants.

• Non-native plants are eaten by more native animals.

• Non-native plants cause native animals to relocate.

• Non-native plants compete with the native plants for resources.

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What defines a species as invasive?

• Species brought to a new ecosystem but unable to adapt.

• Species which fight with other invasive species for space.

• Species moved to a new ecosystem and taking resources from the native species.

• Species moved to a new ecosystem and giving resources to the native species.

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How do invasive plants damage the environment? Select all correct answers.

• Competition with native species.

• Grow in specific areas on their own.

• Change the natural plant community.

• Effect the survival rate of native plants.

• Alter biodiversity by effecting native plant survival rate.

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The populations of native species often decline after new species are introduced to an ecosystem by humans. This is because non-native species -

• reduce the use of pesticides by humans

• provide diversity to the ecosystem

• are always preferred by natural selection

• occupy the same niche as native species

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TRUE or FALSE? Invasive species grow quickly due to the lack of predators. This leads to a decline or extinction of the native population.

• True

• False

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Which of the following are features of cane toads? Select all which apply.

• They can survive in wet and dry conditions.

• Toxic through entire life.

• Females carry thousands of eggs.

• They absorb moisture through their stomach.

A native species is

• a species that lives in the region where it evolved.

• a species that came from ancient ecosystems

• a species that can out produce other species

• a species that was brought to a region by people

Native species

• are plants only

• can be plants, animals, fungi, or bacteria

This native tree is blooming this week, it is called

• a redbud tree

• an ornamental crabapple tree

• a sweet magnolia tree

• a flowering maple tree

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