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Title: Caribou-induced changes in species dominance of lichen woodlands: An analysis of plant remains: Journal: American Journal of Botany; Authors: S. Boudreau, and S. Payette; Date: 2004; Summary: The George River caribou herd in Quebec increased in size from the 1960's to the late 1980's before the population decreased to normal levels again in the early 1990's. Disturbances from over-grazing and trampling greatly affected the vegetation on the herd's summer range, and this study found that disturbed sites had reduced vegetative cover, and contained more plants of earlier successional stages than undisturbed sites. Since the population decline in the 1990's, some recovery has occurred and the vegetation cover contains more trampling and grazing resistant species in disturbed areas, a ...; Agrovoc Control Words: Riparian zones, Rangelands, Wildlife; View more details about this article