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Invasive species

Invasive species

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Invasive species

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  1. Invasive species

  2. Objectives • Define exotic species (alien) and invasive species. • Describe how invasive species affect an ecosystem.

  3. Exotic (alien) species • Species that has been introduced into a new environment • A non-native species • Examples: plants, animals, diseases

  4. Invasive species • An exotic (alien) species that has a negative effect on the new ecosystem

  5. Brief History • Fire ants introduced into Mobile Bay in 1918 • Painful sting • Zebra mussels introduced into the Great Lakes in 1988 • Clogged pipes • Displace native game fish

  6. Common Florida Invasive Species • Cane toads • Wild hogs • Fire ants • Burmese python • Lionfish

  7. Common Florida Invasive Species • Brazilian pepper • Melaleuca • Australian pine • Hydrilla • Water hyacinth

  8. Characteristics of Invasive species • Rapid lifespan • High rate of reproduction • Tolerate a large range of environmental conditions • Effective and efficient method of dispersal • Highly competitive for limited resources

  9. Control/Management Strategies • Control of rabbits in Australia by Myxoma virus • Cottony Cushion Scale in citrus controlled by Vedalia ladybugs