Subject
- Forest ecology -- West (U.S.)6
- U.S. International Biological Program. Coniferous Forest Biome6
- Forests and forestry -- Research -- West (U.S.)3
- Agricultural pests -- Integrated control2
- Bacillus thuringiensis2
- Conifers -- Ecology -- United States2
- Conifers -- Environmental aspects -- West (U.S.)2
- Conifers -- West (U.S.) -- Ecology2
- Conifers -- West (U.S.) -- Environmental aspects2
- Lake ecology -- West (U.S.)2
- Stream ecology -- West (U.S.)2
- Aquatic ecology1
- Arthrobacter1
- Benthos -- Microbiology1
- Biodegradation1
- Biodegradation -- Research1
- Carbon cycle (Biogeochemistry) -- Mathematical models1
- Carbon cycle (Biogeochemistry) -- Washington (State) -- Washington, Lake, Watershed1
- Diatoms -- Oregon -- Yaquina River Estuary1
- Drinking water -- Microbiology1