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Managing Invasive Species: Threats and Solutions

Invasive species are non-native organisms that cause environmental issues by outcompeting native species. These invaders reproduce rapidly, lack predators, adapt easily, and exploit various food sources. Examples include the Emerald Ash Borer and European Starling, which have devastated ecosystems. Various methods like mechanical removal, biological control, chemical manipulation, and cultural awareness are used to combat invasive species.

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Managing Invasive Species: Threats and Solutions

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  1. Invasive Species

  2. What do you think an invasive species is?

  3. Invasive Species​ • ​means non-native or not originally from that place • ​causes problems in the non-native environment​

  4. Characteristics of Invaders​ • ​reproduce very quickly • ​lack of predators = lack of population control • ​adapts well to new environments • ​can live off of a wide variety of food sources

  5. Emerald Ash Borer​ • ​accident • ​thought to be brought to North America by traveling in ship containers • originally from Asia • ​can now be found in 15 states and Canada • has killed ​50-100 million ash trees • ​one of the most destructive invasive insects in North America

  6. Emerald Ash Borer​

  7. European Starling​ • ​on purpose • ​Shakespeare mentioned this bird in his writing so in 1890 100 birds were released in Central Park in NYC  • ​originally from Eurasia • now can be found all over U.S. • ​destroy crops • rob native birds of nesting sites 

  8. European Starling​ ​

  9. What next?​ • Mechanical-prescribed fire, manual removal, explosives • Biological-natural enemies such as insects or pathogens that attack the invasive species • Chemical-manipulation of water or soil chemistry to increase the growth of native species • Cultural-educating people, encouraging actions that minimize the spread of invasive species

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