Subject
- African buffalo -- Parasites -- Ecology -- South Africa -- Kruger National Park1
- African buffalo -- Parasites -- South Africa -- Kruger National Park1
- Ascomycetes -- Oregon -- Classification1
- Atheliaceae -- Oregon -- H.J. Andrews Experimental Forest1
- Atmospheric carbon dioxide -- Oregon -- Metolius River Watershed1
- Biochemical markers1
- Biological ecology -- Oregon1
- Bird populations -- Alaska -- Prince William Sound1
- Blood -- Parasites -- South Africa -- Kruger National Park1
- Bryophytes -- Cascade Range1
- Bryophytes -- Ecology -- Oregon1
- Bryophytes -- Oregon1
- California black oak -- Oregon -- Rogue River Watershed (Klamath County-Curry County)1
- Camp sites, facilities, etc. -- Environmental aspects -- California -- Yosemite National Park1
- Carbon cycle (Biogeochemistry) -- Central America1
- Carbon cycle (Biogeochemistry) -- Oregon -- Metolius River Watershed1
- Cavity-nesting birds -- Effect of fires on -- Oregon, Eastern1
- Cavity-nesting birds -- Habitat -- Oregon, Eastern -- Remote sensing1
- Ceanothus -- Effect of fires on -- Oregon -- Applegate River Watershed1
- Ceanothus -- Effect of grazing on -- Oregon -- Applegate River Watershed1