Forestry graduates interested in research or teaching may concentrate much of their course work in one or more of the related sciences with a thesis appropriate to forestry. Specialized graduate education is available in agroforestry, biometrics, community and landscape ecology, economics, fire ecology, hydrology, geographic information systems, physiological ecology, physiology, policy, silviculture, forest soils, forest management, stand dynamics, water quality, wood quality and tree-ring analysis.Students often conduct joint research with natural resource specialists at the Northern Research Station (U.S. Forest Service), the Missouri Department of Conservation, the Missouri Department of Natural Resources, the National Park Service, and the U.S. Fish and Wildlife Service.