Subject
- Forests and forestry -- Research -- Oregon32
- Wildlife management -- Oregon23
- Fishing -- Oregon21
- Hunting -- Oregon21
- Reforestation -- Oregon21
- Conifers -- West (U.S.) -- Ecology12
- Forest ecology -- West (U.S.)12
- Forests and forestry -- Oregon12
- Lake ecology -- West (U.S.)12
- Stream ecology -- West (U.S.)12
- Douglas fir11
- Forest management -- Congresses9
- Hill farming -- Congresses9
- Hillside planting -- Congresses9
- Mycorrhizas9
- Hatfield Marine Science Center8
- Marine sciences7
- Plant-soil relationships7
- Plant-water relationships7
- Coho salmon6