the big idea

the big idea

What makes a species invasive?

1HOW do we know when a non-native species has established itself?

When it becomes a reproducing population.

Life cycle of bug

2WHEN does a non-native species become invasive?
2

WHEN does a non-native species become invasive?

When it causes harm to any of these areas: 

a) THE ENVIRONMENT
leavesThe emerald ash borer feeds on ash trees, causing enough damage to kill them.

b) THE ECONOMY
dollar sign iconInvasive weeds and insects reduce crop yields and crowd out native plants in forests.

c) HUMAN HEALTH
heart iconJumping invasive carp can damage boats and harm passengers.

1HOW do we know when a non-native species has established itself?

When it becomes a reproducing population.

Life cycle of bug

bigideanumb-mobile
2WHEN does a non-native species become invasive?

When it causes harm to any of these areas: 

a) THE ENVIRONMENT
leavesThe emerald ash borer feeds on ash trees, causing enough damage to kill them.

b) THE ECONOMY
dollar sign iconInvasive weeds and insects reduce crop yields and crowd out native plants in forests.

c) HUMAN HEALTH
heart iconJumping invasive carp can damage boats and harm passengers.

three WHAT can I do to help?
three WHAT can I do to help?
Wood stack

xDon’t plant invasive trees and shrubs.

flower

xDon’t move firewood from one region to another.

laptop

xReport invasive species on the web or an app.

boat

xClean boats and other aquatic equipment before leaving.

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