Invasive Species
An invasive species is a plant, animal or fish that has been introduced to an area outside of its normal geographic range, and threatens the health of our natural areas by out-competing native species for food and habitat. Invading species are one of the greatest threats to the biodiversity of Ontario’s waters and woodlands.
Species migrate to new locations naturally; for example a bird can carry a seed to a new location, or by people: weeds attached to the bottom of a boat. Most relocated species do not survive a foreign habitat. A few survive and if there are no predators in the new environment, those species can become invasive.
A number of programs have been established in order to address the increasing threats posed by invading species in Ontario. Many of the programs focus on early detection and rapid response. I believe that the best defense is always to prevent the spread of unwanted species.
The Invading Species Awareness Program provides a lot of common sense advice on preventing spread. Some tips include:
- Look before you leave – mud, boots, boats, your pet can all carry seeds. Clean your boots before heading up to the lake, wash your boat if you are moving it from one lake to the next, remove seeds from your pets.
- Exotic aquatic species have the potential to become invasive. Never dispose of aquatic, invertebrates or fish into natural waterways. Do not introduce exotic fish to water gardens near natural waterways. No matter how diligent you are at keeping your goldfish in the pond, an animal or bird can relocate the fish to the lake. A simple gold fish has know to become invasive.
- Buy only local firewood. Burn it on site.
- Garden with non-invasive plants. Buy from a reputable garden supply centre.
For more information, refer to the Invading Species Awareness Program web site.
Canada Food Inspection Agency web site offers a lot of information about bio-security, plant protection, the risks of moving firewood and much more.
