Subject
- Bryophytes -- Cascade Range1
- Bryophytes -- Oregon1
- Dendrochronology -- Middle West1
- Douglas fir -- Thinning -- Oregon, Western1
- Fire ecology -- Klamath National Forest (Calif. and Or.)1
- Forest canopy gaps -- Oregon, Western1
- Forest ecology -- Middle West1
- Forest management -- Oregon, Western1
- Forest management -- Klamath National Forest (Calif. and Or.)1
- Forest regeneration -- Klamath National Forest (Calif. and Or.)1
- Forest restoration -- Cascade Range1
- Forest restoration -- Oregon1
- Herbivores -- Puerto Rico -- Luquillo Experimental Forest1
- Hickories -- Middle West1
- Klamath National Forest (Calif. and Or.)1
- Nutrient cycles -- Puerto Rico -- Luquillo Experimental Forest1
- Oak -- Middle West1
- Plant communities -- Klamath National Forest (Calif. and Or.)1
- Plant succession -- Cascade Range1
- Plant succession -- Oregon1