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 • Second largest threat to biodiversity and endangered species
Accidental Introduction:Zebra Mussel • FromRussia • ZebraMusselsaremostdamagingaquaticorganism • Spreadeasily due to size, breeding and ability to live out of water
Problem with Zebra Mussels • Found millions per square meter • Have closed down municipal water supply • Cost companies money to unclog pipes chemically treated.
Gypsy Moth • Came From Eurasia • Introduced in the 1860’s • Brought Intentionally
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
Intentional Use: Purple Loosestrife • From Europe and Asia • Introduced in 1800’s • Brought to US for ornamental and medicinal purposes
Purple Loosestrife • Is a Threat to Plants in the US • Easy adapts to all wetlands
Starling • Brought to America in 1890’s • Compete with native birds for nest holes in trees
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.
Don’t transport species • Drain water carefully • Don’t flush live fish
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.