Subject
- Bald eagle -- Ecology -- Alaska1
- Conifers -- Effect of wind on1
- Conifers -- Mechanical properties1
- Deforestation -- Environmental aspects -- Brazil -- Rondônia1
- Ectomycorrhizal fungi -- Blue Mountains (Or. and Wash.)1
- Ectomycorrhizal fungi -- Effect of fires on -- Blue Mountains (Or. and Wash.)1
- Forest dynamics -- Environmental aspects -- Brazil -- Rondônia1
- Forest management -- Blue Mountains (Or. and Wash.)1
- Forests and forestry -- Fire management -- Environmental aspects -- Oregon, Western1
- Mountain quail -- Ecology -- Oregon1
- Nature -- Effect of human beings on -- Alaska1
- Northern spotted owl -- Conservation -- Oregon, Western1
- Northern spotted owl -- Effect of forest management on -- Oregon, Western1
- Northern spotted owl -- Habitat -- Conservation -- Oregon, Western1
- Ponderosa pine -- Blue Mountains (Or. and Wash.) -- Roots1
- Ponderosa pine -- Ecology -- Blue Mountains (Or. and Wash.)1
- Prescribed burning -- Blue Mountains (Or. and Wash.)1
- Restoration ecology -- Blue Mountains (Or. and Wash.)1
- Slashburning -- Environmental aspects -- Brazil -- Rondônia1