Although the importance of pollination in ecosystem structure and function is wellappreciated, there are few studies that attempt to explain the ways in which thediversities and abundances of plants and pollinators interact, and how to assess theeffects of stress on these complex inter-relationships. Refer to papers of Kevanet al., Laroca and group new paper by Dicks, Corbet, and so on. This is an activearea of current research with recent funding received from NSERC, and othersources.