Invasive species step by step

What are invasive species?

Organisms that are introduced to a new environment and cause ecological harm.

Example of an invasive plant.

Kudzu: a fast-growing vine that outcompetes native plants.

True or false: All non-native species are invasive.

False, because only some non-native species disrupt ecosystems.

What is ecosystem disruption?

When species alter the food web, nutrient cycling, or habitat structure.

Difference between native and invasive species.

Native species evolve in their environment; invasive species do not.

Fill in the blank: Invasive species can lead to __________ of native species.

extinction

What is biological control?

Using natural predators to manage invasive species populations.

Question: How do invasive species spread?

Through human activities, wind, water, and animals.

True or false: Invasive species only impact plants.

False, because they can harm animals and ecosystems too.

Impact of invasive species on local economies.

They can damage agriculture, fisheries, and tourism industries.

What is a common method to control invasive species?

Mechanical removal, chemical treatments, and habitat restoration.

Example of an invasive animal.

Burmese python: it preys on native wildlife in the Everglades.

Question: Why are invasive species a concern?

They threaten biodiversity and ecosystem stability.

Fill in the blank: The __________ of invasive species can be costly.

management

Compare invasive species management vs. prevention.

Management addresses existing populations; prevention stops introduction.