What are Invasive Species?

Species that are found in an ecosystem where they did not evolve are considered “alien”.  An alien species is considered invasive if it has “weedy” characteristics that enable it to reproduce quickly, spread rapidly, and compete aggressively with other species.  Invasive species can take over and displace native species. 

Invasive Species Working Group

The Invasive Species Working Group (ISWG) is a PSPS working group that was formed at the suggestion of the GVRD so that their staff could better support the growing number of volunteers wanting to get involved in the removal of invasive plants from Pacific Spirit Regional Park.  The Invasive Species Working Group collaborates other PSPS groups and Metro Vancouver to develop work plans.

The Holly Haulers and Ivy Pullers conduct on site work parties. Metro V. supplies tools, safety training, expert advice, insurance, and facilities for debris removal, while the volunteers supply their labour and enthusiasm.

Meetings of the Invasive Species Working Group are held on a more-or-less bimonthly basis.  Topics for discussion have included ongoing work projects, annual work plans, technical reports, and best practices for invasives removal.  The group is conducting research into the most effective means for removal of Japanese knotweed in Pacific Spirit Regional Park.