Woody bioenergy for heat and power. Shade tolerance of palms. Coupled social-ecohydrological systems.  How family legacies and community networks shape private forest management. Harvest gaps—and how to ensure the diversity to natural resource stewards of the future. Ranked second in the nation among Forestry and Forestry Sciences graduate programs, Michigan Tech offers its PhD program to candidates who intend to make significant contributions to knowledge in the areas of forest ecology, soils, silviculture, tree improvement, forest wildlife ecology and management, economics, inventory, geographic information systems, growth and yield, wood science, and forest biology. It is awarded through demonstrated mastery of advanced course work and innovative research.