1. Introduction of Non-Native Species Invasive species: a non-native species whose intentional or accidental introduction negatively impacts the natural environment

2. Introduction of Non-Native Species Invasive species: a non-native species whose intentional or accidental introduction negatively impacts the natural environment e.g.Carp Earwigs European Starlings

3. Introduction of Non-Native Species Invasive species: a non-native species whose intentional or accidental introduction negatively impacts the natural environment Types of Impact: 1. Ecological: competes or feeds on native species

4. Introduction of Non-Native Species Invasive species: a non-native species whose intentional or accidental introduction negatively impacts the natural environment Types of Impact: 1. Ecological: competes or feeds on native species 2. Economic: damage to forests or agricultural areas Emerald ash borer

5. Introduction of Non-Native Species Invasive species: a non-native species whose intentional or accidental introduction negatively impacts the natural environment Types of Impact: 1. Ecological: competes or feeds on native species 2. Economic: damage to forests or agricultural areas 3. Tourism: species loss & reduced water quality reduce attractiveness Water milfoil

6. Introduction of Non-Native Species Invasive species: a non-native species whose intentional or accidental introduction negatively impacts the natural environment Types of Impact: 1. Ecological: competes or feeds on native species 2. Economic: damage to forests or agricultural areas 3. Tourism: species loss & reduced water quality reduce attractiveness 4. Health: disease-causing organisms, such as West Nile virus are introduced

7. Introduction of Non-Native Species Controlling Invasive Species: Chemical Control: the use of pesticides Mechanical Control: physical barriers or removal. e.g. carp barrier in Cootes Paradise Biological Control: introducing organisms that prey on the invasive species e.g. insects released to consume purple loosestrife