William J. Crins
William "Bill" J. Crins (born 1955) is a botanist, naturalist, and ecologist. After graduating from M. M. Robinson High School in Burlington, Ontario, Crins matriculated in 1974 at the University of Guelph, where he graduated in 1978 with a B.Sc. in botany. During the summers of the years 1972–1978 he worked at Algonquin Provincial Park as an interpretive naturalist. In 1985 he graduated from the University of Toronto with a Ph.D. in systematic botany. After receiving his Ph.D., he did research at the University of British Columbia, where he worked on tarweed evolution with Bruce Arthur Bohm . Crins then worked on plant systematics at the New York State Museum. He was from 1998 to 2011 a Senior Conservation Ecologist in the Ontario Ministry of Natural Resources (OMNR) in Peterborough and from 2011 to 2016 a Senior Program Coordinator, Resource Conservation in the OMNR, Parks & Protected Areas Policy Section From January 2017 to the present, he has been employed by the University of Toronto Scarborough as a lecturer, teaching a graduate course on population ecology, community ecology, and management of protected areas. In August 1989 Crins gave an address to the Canadian Botanical Association/Association botanique du Canada  (CBA/ABC). As a naturalist, he has outstanding expertise in grasses, sedges, wildflowers, and birds. He also has expertise in entomology, especially flower flies. He was the first to scientifically describe the species "Carex juniperorum".