… Grassland Management Certificate (Graduate) Michele Dudash Have an interest in being involved with the conservation and management of natural areas with its challenging dual role of food production and the maintenance of biodiversity. Graduate Certificate Department … Certified for success. Grasslands - including rangelands, pasturelands and haylands - are the principal land resource type in the Great Plains, comprising more than 50% of the land surface area. Grasslands represent a fundamental resource of the region that determines the environmental and economic future of the Great Plains states. The grassland …