A Professor of Biology and Environmental Studies, David has taught at Trinity Western University since 1994. He was a founding board member and chair of A Rocha Canada, and has also served on the boards of the Langley Environmental Partners Society, The Langley Field Naturalists and the Salmon River Enhancement Society.
His principal area of study is weed biology and ecology; he supervises research and restoration at sites in Langley, in Canada’s Gulf Islands and in Hawaii. David is President of the Canadian Weed Science Society, has been invited to annual exchanges with the Yunnan Academy of Agricultural Sciences to study invasive weeds in China and has published more than 50 papers. He is editor for Weed Research Journal; he initiated and edits the series “Biology and Impacts of Pacific Island Invasive Species” for Pacific Science Journal.
David is very interested in the ethics and bioethics of weed science; he sees the potential for a Christian theology of environmental stewardship to invite humanity into a deeper, more holistic commitment to caring for the Earth.
David grew up in Ontario and completed his Ph.D. at Queen’s University. He lives in Walnut Grove, BC with his wife and four sons, who are growing like weeds themselves.