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Max S. Hayes School Invaders Who are these Invaders? More than 4,500 non-native species in the USA More than 3,000 occur in Ohio 25% of Ohio species are non-native No Stopping These Invaders Introduction is accidental and deliberate Compete with native species National problem A Threat

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Who are these invaders l.jpg
Who are these Invaders?

  • More than 4,500 non-native species in the USA

  • More than 3,000 occur in Ohio

  • 25% of Ohio species are non-native


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No Stopping These Invaders

  • Introduction is accidental and deliberate

  • Compete with native species

  • National problem


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A Threat

  • Second largest threat to biodiversity and endangered species


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Accidental Introduction:Zebra Mussel

• FromRussia

• ZebraMusselsaremostdamagingaquaticorganism

• Spreadeasily due to size, breeding and ability to live out of water


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Problem with Zebra Mussels

• Found millions per square meter

• Have closed down municipal water supply

• Cost companies money to unclog pipes chemically treated.






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Gypsy Moth

  • Came From Eurasia

  • Introduced in the 1860’s

  • Brought Intentionally


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Problems with Gypsy Moth

  • Eats leaves on trees and shrubs

  • Leaves large areas bare of all vegetation

  • Devours 1 million acres of leaves a year

  • Can’t be controlled


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Intentional Use: Purple Loosestrife

  • From Europe and Asia

  • Introduced in 1800’s

  • Brought to US for ornamental and medicinal purposes


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Purple Loosestrife

  • Is a Threat to Plants in the US

  • Easy adapts to all wetlands


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Starling

  • Brought to America in 1890’s

  • Compete with native birds for nest holes in trees


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What You Can Do

  • Spread the word about invasive species

  • Be careful not to transport invasive species.

  • Volunteer to help control invasive species

  • Discourage the sale of invasive, and non-native plants.



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Conclusion: Invasive Species

  • Conclusion, the invasive species are dangerous to or the environment and they can damage or native species.

  • Invasive get here by deliberate, intentional, and accidental introduction.

  • 3. Remember our slide show we told you how to prevent invasive species -do your part!

  • We hope you enjoyed this presentation and learned new cool things.


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