Glossary for Species & Ecosystems At Risk
Here are some definitions for terms found in the BC Species & Ecosystems Explorer.
The Conservation Framework is a science-based approach for coordinating and aligning effective conservation efforts in B.C. by:
- Contributing to global efforts for species and ecosystem conservation
- Preventing species and ecosystems from becoming at risk
- Maintaining the diversity of native species and ecosystems
Exotic species are non-native species that have become established and/or naturalized in BC as a result of human activity. Exotic species are also known as alien species, foreign species, introduced species, non-indigenous species and non-native species. Exotic species are excluded from the Red, Blue and Yellow lists.
Not all exotic species are invasive. Many simply occupy disturbed sites (e.g. roadsides), and don't displace native species. Invasive species are (usually) exotic species that have moved into natural ecosystems and have altered natural ecosystem characteristics.
The CDC also maintains a "Non-established" vascular plant list that includes non-native taxa (often garden escapes) that have been observed growing outside of cultivation, but that have not yet become established. Non-established taxa are grouped into the following categories: Ephemeral: Lasting for a season or rarely a bit longer, but do not persist. Occasional: Sometimes persisting, but not known to have spread beyond limited sites and usually found near plantings. To access the Non-established list, please visit the EFlora website