Terrestrial/Riparian Invasive Species

Terrestrial and riparian invasive plants are non-native species that are generally free of the natural predators that help keep them in check in their native country of origin. Without natural predators and/ or diseases to control them, and with their aggressive growth and abundant seed production, these plants spread rapidly and extensively through our native ecosystem.

CKISS Invasive Plant Priority Lists

CKISS Plant Priority List 2020


Invasive knotweeds

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Aquatic Invasive Species

Aquatic invasive species are plants, animals and other organisms that have been introduced into an aquatic ecosystem (lake, river, wetland or ocean) where they do not naturally occur. Because they are generally lacking the natural pathogens or predators that keep them under control in their native habitats, they can spread rapidly and extensively through waterways. Once established, aquatic invasive species are very difficult, if not impossible, to control and can form thick patches over large areas. These dense monocultures can negatively impact biodiversity, species at risk, fisheries productivity, water quality and power generation.

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