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- Nancy and John Steimer Professor of Agricultural Sciences
- Professor of Forest Ecology and Physiology
- Academy Professor and Professor Emeritus of Molecular Genetics
- Past Director of The Schatz Center for Tree Molecular Genetics
Areas of Expertise
- Genomics
- Conservation Genetics
- Renewable Energy
- Biotechnology
- Professor of Pedology & Graduate Program Chair
Areas of Expertise
- Soil Science
- Watershed Management
- Landscape Ecology
- Natural Resource Management
- Professor and Ibberson Chair in Community and Urban Forestry
Areas of Expertise
- Technical assistance to municipalities in preparation and enactment of environmental ordinances and other policy.
- Professor of Forest Resources
Areas of Expertise
- Water Energy Food Nexus
- Bioenergy
- Agroforestry
- Forest Economics and Finance
- International Forestry
- Forest Extension
- Non Timber Forest Products
- Interim Department Head and Professor of Forest Ecology
Areas of Expertise
- Global change ecology
- Forest ecology
- Dendrochronology
- Community ecology
- Assistant Dean for Access and Equity
- Research Professor of Quantitative Forest Ecology
- Associate Professor of Forest Management
- Director, James C. Finley Center for Private Forests at Penn State
- Associate Research Professor, Private Forests Management
Areas of Expertise
- Forest stewardship
- Private forest landowners
- Woodland care
- Collaborative learning
- Action research
- Peer-to-peer education
- Goddard Chair - Forestry & Environ. Conservation
- Professor - Ecosystem Science & Management
Areas of Expertise
- Watersheds, high mountain hydrology, glacier loss
- Water-energy-food nexus, water security, transboundary waters
- Resource conservation and policy, climate adaptation
- Energy transitions, renewables, carbon mitigation
- Resilience, adaptation, social-ecological systems
- Appalachians, Alleghenies, Andes, Himalayas
- Teaching Professor in Forest Resources and
- Natural Resources & Youth Extension Specialist
Areas of Expertise
- Youth and Natural Resources Education
- Forest Stewardship
- Natural Resources Volunteerism
- Private Forestland Management
- Connecting Youth with Nature
- Forest Dendrology and Botany
- Professor Emeritus of Forest Biology
- Associate Professor of Silviculture
Areas of Expertise
- Forestry
- Silviculture
- Forest ecology
- Disturbance ecology
