GOERT: Garry Oak Ecosystems Recovery Team

Invasive Species

Eastern grey squirrel, an invasive species in Garry oak and associated ecosystems (photo by Marilyn Fuchs)

Invasive Species and Restoration

We have replaced our former Decision Support Tool for Invasive Species Management (DST) with a new guide, the General Decision Process for Managing Invasive Plant Species in Garry Oak and Associated Ecosystems (GDP), and the more specific information for blackberry, ivy and broom removal has been moved into separate Best Management Practices (BMP). In addition, two new BMPs have been created for orchard-grass and daphne. Additional information for other invasive species is available in our field manual on Invasive Species in Garry Oak and Associated Ecosystems in British Columbia (see below).

The GDP includes an appendix with a new algorithm to help set priorities for invasive species. This tool was developed by the BC Ministry of Forest and Range’s Invasive Alien Plant Program and has been modified for paper use, and is available in Excel format which allows for automatic calculations. Over the coming months we will be filling in 3 of the 4 sets of criteria questions in the algorithm for a number of invasive species in Garry oak ecosystems. This will make the algorithm easier and faster to use.

• General Decision Process for Managing Invasive Plant Species in Garry Oak and Associated Ecosystems (PDF 69KB)
• Species Scoring Algorithm (Excel 48KB)
• Best Practices for Blackberry Management (PDF 81KB)
• Best Practices for Daphne Management (PDF 200KB)
• Best Practices for Broom Management (PDF 81KB)
• Best Practices for Ivy Management (PDF 79KB)
• Best Practices for Orchard-grass Management (PDF 66KB)
• The Garry Oak Gardener’s Handbook
• Best Times to Remove Invasive Species in Victoria,
  courtesy of Patricia Boyle (PDF 44KB)

Background Documents

• Towards a Decision Support Tool to Address Invasive Species
  in Garry Oak & Associated Ecosystems in B.C. (PDF 1MB)
• Adaptive Management Strategy for the Decision Support Tool for Invasive Species in Garry Oak and Associated Ecosystems (PDF 110KB)

Field manual: Invasive Species in Garry Oak
and Associated Ecosystems in BC

• Introduction (PDF 372KB)
• Table of Contents (PDF 36KB)
• Acknowledgements (PDF 56KB)

Annotated Bibliographies on
Ecology and Management of Invasive Species

List of exotic (non-native) plant species

Complete list of exotic (non-native)
vertebrate species