Conceptual diagram of imported grain as a pathway for the introduction of weed seeds. Six points, or events, along the pathway that have relevance for weed risk are illustrated from left to right along a timeline from point of origin to end use at destination. Factors that increase the risk of introducing new weed species to Canada are shown in red boxes, while factors that decrease the risk are shown in green boxes.

  Part of: Wilson CE, Castro KL, Thurston GB, Sissons A (2016) Pathway risk analysis of weed seeds in imported grain: A Canadian perspective. In: Daehler CC, van Kleunen M, Pyšek P, Richardson DM (Eds) Proceedings of 13th International EMAPi conference, Waikoloa, Hawaii. NeoBiota 30: 49–74.