August Ludwig "Gus" Hormay (1907–1999) developed and applied the concept of the rest-rotation grazing management system in areas of the Western United States. Rest-rotation rangeland management system uses deferred grazing to manage increased plant reproduction and maintenance, while providing grazing lands for both livestock and wildlife. Gus Hormay's rest-rotation management system was developed to increase a healthy plant community, watershed, soil and wildlife habitat, while at the same time increasing livestock production. It has been in use in various forms since the mid-1960s as a rangeland management tool.