About Us


Making the World a Better Place For All of Us

Our Story

David F. Polster, R.P. Bio. #148 is a plant ecologist with over 35 years of experience in vegetation studies, reclamation and invasive species management. He graduated from the University of Victoria with an Honours Bachelor of Science degree in 1975 and a Master of Science degree in 1977. He has developed a wide variety of reclamation techniques for mines, industrial developments and steep/unstable slopes as well as techniques for the re-establishment of riparian and aquatic habitats. He is the past-president (third term) of the Canadian Land Reclamation Association. He is the treasurer for the B.C. Chapter of the Society for Ecological Restoration and is the NW Regional Representative on the board of the international Society for Ecological Restoration. He serves as the alternate mining representative on the board of the Invasive Species Council of B.C. Dave has provided on-site design and direction in the development of reclamation and bioengineering systems for restoration of severely damaged ecosystems. He served as the environmental supervisor for CP Rail’s massive Roger’s Pass Project. He was responsible for developing the bioengineering systems that have successfully revegetated a portion of the Point Grey cliffs at UBC. Dave teaches soil bioengineering and ecological restoration workshops for industrial clients and stewardship groups. He has written course manuals to support his teaching. Dave has applied his knowledge in ecology to solving problems of unwanted and invasive vegetation. He has authored numerous papers and teaches graduate level courses on these topics.

Butler Brothers Live Staking

Using live staking this slope was restored using the “rough and loose” method and live staking a mix of cottonwoods and willows to add root stability.

Saanich Wattle fencing

Using wattle fences this property in central Saanich was restored using the natural process with a little help from wattle fencing a strategy used to stabilize steep slopes and create terraces for water to disperse into the soil or trickle down the face of the wattle fence.

UBC Cliffs

All the way back in 1988 Polster Environmental Services was using wattle feching and brush mats to fix the sandy UBC cliffs

Johnson's Landing Landslide

Using aerial seeding and live staking Polster Environmental Services was able to help restore this area using the natural process in a difficult to reach area.