The authors of this study compared the vegetative and reproductive growth of moderately and heavily grazed jojoba (Simmondsia chinensis) plants to jojoba plants that had been rested from grazing for 7 years inside livestock exclosures. The density of jojoba plants was similar inside and outside of exclosures, however, grazed plants were shorter, had less canopy cover, and produced less flowers than ungrazed plants. Moderate grazing enhanced twig growth and heavy grazing decreased twig growth, however, plants exposed to both grazing levels were able to compensate for vegetation lost to herbivory. The authors of the study suggest that moderate grazing intensities will maintain the health and productivity of jojoba plants in most pastures and that livestock producers should manage grazing intensities for the maintenance of moderately sized jojoba plants.
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.