Subject
- Animal population density23
- Carcinus maenas -- Oregon22
- Introduced aquatic organisms -- Oregon22
- Carcinus maenas -- Washington17
- Introduced aquatic organisms -- Washington17
- Animal populations7
- Fish populations -- Oregon -- Pacific Coast6
- Insect population density6
- Marine animals -- Oregon -- Pacific Coast -- Geographical information5
- Marine fishes -- Oregon -- Pacific Coast5
- Agricultural pests -- Control -- Congresses4
- Fish surveys2
- Fruit -- Diseases and pests2
- Oregon -- Heceta Bank2
- Population biology -- Statistical methods2
- American pika -- Climatic factors -- West (U.S.)1
- American pika -- Variation -- West (U.S.)1
- American pika -- West (U.S.) -- Genetics1
- Animal behavior1
- Animal diversity -- Tanzania1