This study was conducted on three contiguous range units within the Douglas Fir biogeoclimatic zone in the Cranbrook Forest District, British Columbia. The role of cattle in relation to hound’s-tongue (Cynoglossum officinale L.) seed (burr) dispersal was examined in two experiments in the early 90’s. The first examined movement of burrs onto cattle and the gain/loss of burrs from cattle over time. Sixty individual plants were identified in each paddock; number of burrs per stock was counted before and after grazing. Cattle were photographed monthly throughout the grazing season to determine the number of burrs per face. The second study was set up to determine the relationship between hound’s-tongue density and the number of burrs on cattle. Cows were allowed to graze paddocks in 1992 to 1994, over the course of this study cattle were photographed a total of 13 times to determine the number of burrs per face. Density of Hound’s-tongue was estimated by counting the number of burr stocks in disturbed sites across each paddock.
Citations and enhanced abstracts for journals articles and documents focused on rangeland ecology and management. RSIS is a collaboration between Montana State University, University of Idaho, and University of Wyoming.