Restoration of Lands on the Gardiner Basin Winter Range, Yellowstone National Park, Montana, USA. The area was settled in the 1870s and converted from native vegetation to cropland and non-native grasslands. The area was acquired by the park in the 1930s. However, the habitat further degraded through the planting and seeding of non-native crested wheatgrass (Agropyron cristatum) and other non-native invasive species. Restoration efforts were initiated in 2008. The efforts consist of 1. maximizing weed control using chemical, mechanical, and cultural techniques; 2. site preparation using a barley/winter wheat cover crop to hold and decompact soil, provide competition with weeds, stimulate soil biota, and increase soil organic material; 3. fencing to exclude ungulate use during site preparation through native seed planting/ germination/ establishment; and 4. drill seeding native seeds at a rate of 16-22 lbs per acre. Click here for further information.
The images below were made during a site visit by Dr. Débora C. Rother of the Departamento de Ecologia, UNESP - Rio Claro - SP Laboratório de Ecologia e Restauração Florestal, Esalq/USP - Piracicaba, Brazil.