Subject
- American marten -- Habitat -- California, Northern1
- Biological productivity -- Northwest, Pacific1
- Burrowing owl -- California, Southern -- Reproduction1
- Burrowing owl -- Ecology -- California, Southern1
- Burrowing owl -- Habitat -- California, Southern1
- Butterflies -- Ecology -- Oregon -- Willamette River Valley1
- Endangered species -- California, Northern1
- Grazing -- Environmental aspects -- Oregon -- Jack Creek Watershed1
- Habitat selection1
- Host-parasite relationships1
- Insect-plant relationships -- Oregon -- Willamette River Valley1
- Plant species diversity -- Northwest, Pacific1
- Spotted frog -- Ecology -- Oregon -- Jack Creek1
- Spotted frog -- Habitat -- Oregon -- Jack Creek1
- Spotted frog -- Oregon -- Jack Creek -- Geographical distribution1
- Washington ground squirrel -- Columbia River Valley -- Geographical distribution1
- Washington ground squirrel -- Ecology -- Columbia River Valley1
- Washington ground squirrel -- Habitat -- Columbia River Valley1
- Washington ground squirrel -- Mortality -- Columbia River Valley1
- Woody plants -- Ecology -- Northwest, Pacific1