Correction
This edition of Countryside Stewardship Mail stated oak wilt, an invasive species, has been found in the Credit River Watershed. This statement was made in error. Oak wilt has been found in Ontario, but not within our watershed. We apologize for any confusion.
The Credit River Watershed is under attack from invasive species! But what makes a species invasive? Test your knowledge with the poll below:
- Invasive species have environmental, economic and social detriments, such as outcompeting native species, lowering food production and property values, and limiting recreational activities
- Species that are intentionally or accidentally introduced to a new ecosystem outside of their range
- All of the above
If you guessed all of the above, you’re correct! Species must meet these criteria to be considered invasive. If they don’t, they’re simply considered non-native. An example of a non-native species within the watershed is the gingko tree. Whereas a species like jumping worm, oak wilt and starry stonewort are invasive, all of which have been found recently within the watershed. Here’s a quick rundown of some of the environmental, economic and social impacts invasive species have:
Environmental Impacts
By outcompeting and predating native species and by degrading their habitats, invasive species reduce biodiversity and contribute to the extinction of endangered species. They also cause soil degradation and erosion and increase wildfire risk.
Economic Impacts
Invasive species are costly to control and manage, and often reduce productivity and yields in the forestry, agriculture and fishing industries. They also have the potential to lower your property value.
Social Impacts
Many invasive species can threaten human and animal health, for example giant hogweed can cause severe burns if you come in contact with its sap. Invasive species can also limit recreational opportunities and contribute to the loss of traditional foods and medicinal plants.
How Can You Help?
Stop the spread and report any sightings. If you’re curious to learn more, pursue the resources below:
- Ontario’s Reporting App.
- Invasive Species – Check out CVC’s resources on invasives.
- Invasive Species List – Learn about CVC’s priority invasive plants.
We Want to Hear from You!
Do you have questions or concerns about invasive species in your area? Connect with us at [email protected].