- Oregon State University. Extension Service62
- Oregon State University. Agricultural Experiment Station48
- Oregon State University47
- Oregon State University. Forest Research Laboratory21
- Oregon State University. Malheur Experiment Station13
- Ruttle, Marilyn13
- Valde, Gary11
- Pscheidt, Jay W.8
- Meigs, Garrett W.7
- Scharback, Ron7
- U.S. International Biological Program. Coniferous Forest Biome7
- Hatfield Marine Science Center6
- Kennedy, Robert E.6
- Campbell, John L.5
- Maguire, Douglas A.5
- Shaw, David C.5
- United States. Agricultural Research Service5
- Bailey, John D.4
- Castagnoli, S.4
- Einhorn, Todd C.4