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Royce E Larsen

Area Natural Resource/Watershed Advisor
Cooperative Extension San Luis Obispo County
350 N. Main Street, Ste. B
Templeton, CA, CA 93465
(805) 434-4106
relarsen@ucanr.edu Create VCard

Also in:
Monterey County
Santa Barbara County

Education

--, Oregon State Univ. 1993

Specialty

Water Quality and Non-point Source Pollution on Rangelands. Also, other natural resource issues including: Rangeland Improvements, Noxious Invasive Weeds, Wildland Fires, Grassland Restoration and Endangered Species.

Areas of Expertise (click to see all ANR academics with this expertise)

Bibliography

Peer Reviewed

  • Feuz, Ryan; Bosworth, Ryan, et al. (2023). Expanding on Basis Risk Estimates for Pasture, Rangeland, and Forage Insurance. Journal of Applied Farm Economics. 6:1, 1-16.
  • Larsen, Royce (2023). Statistical considerations of using the 1-ft 2 quadrat for monitoring peak standing crop and residual dry matter on California annual rangelands. Rangelands. 45:5, 102-108.
  • Ratcliff, Felix (2022). Cattle grazing reduces fuel and leads to more manageable fire behavior. California Agriculture. 76:2, 60-69. https://doi.org/10.3733/ca.2022a0011
  • Baldwin, Roger A. (2022). Estimating forage loss from California ground squirrels in central California rangelands. Range Ecology and Management. 83, 50-58. 2022. https://doi.org/10.1016/j.rama.2022.03.002
  • Larsen, Royce E. (2021). Forage Quantity and Quality Dynamics Due to Weathering over the Dry Season on California Annual Rangelands. Range Ecology and Management. 76, 150-156.
  • Hibbard, Chase (2021). Potential to Improve Winter Grazing Pastures: Sieben Land and Livestock Study. Rangelands. 43:3, 100-110.
  • Royce E. Larsen, Daniel Cook (2021). Seasonal Changes in Forage Nutrient and Toxicity Levels on California Central Coast Rangelands: A Preliminary Study. Grasslands Journal. 31:1, 15-24.
  • Scott M. Devine, Anthony T. O’Geen (2020). Terrain attributes and forage productivity predict catchment-scale soil organic carbon stocks. Geoderma. https://doi.org/10.1016/j.geoderma.2020.114286
  • Lui, Han; Randy, Dahlgren, et al. (2019). Estimating Rangeland Forage Production Using Remote Sensing Data from a Small Unmanned Aerial System (sUAS) and PlanetScope Satellite. Remote Sensing. 11:5, 595.
  • Devine, Scott M; O'Geen, Anthony T, et al. (2019). Microclimate-forage growth linkages across two strongly contrasting precipitation years in a Mediterranean catchment. Ecohydrology. e2156 https://doi.org/10.1002/eco.2156.
  • Scott M.Devine, Anthony T. O’Geen (2019). Microclimate-forage growth linkages across two strongly contrasting precipitation years in a Mediterranean catchment. Ecohydrology. e2156. https://doi.org/10.1002/eco.2156
  • Xunde, li; Flores, A, et al. (2019). Statewide Cross-Sectional Survey of Cryptosporidium and Giardia in California Cow-Calf Herds. Rangeland Ecology and Management. 72, 461-466.
  • Salls, Wilson B; Larsen, Royce E, et al. (2018). Modeled Soil Erosion Potential is Low Across California’s Annual Rangelands. California Agriculture. 72:3, 179-191.
  • Brownsey, P.; James, J., et al. (2017) Using phenology to design optimal mowing and grazing treatments for medusahead (Taeniatherum caput-medusae). Rangeland Ecology and Management 70, 210-218
  • Macon, D.K.; Barry, S, et al. (2016). "Coping with drought on California Rangelands." Rangelands 38(4): 222-228.
  • Becchetti, T.; George, M., et al. (2016) Rangeland Management Series: Annual Range Forage Production. University of California, Agriculture and Natural Resouces ANR 8018, 1-13
  • Larsen, R.E.; Tietje, W., et al. (2016). The Ranching Sustainability Self-Assessment Project.A. Iwaasa, H. Lardner, M. Schellenberg, W. Willms and K. Larson. Proceedings 10th International Rangeland Congress. Http://2016CANADA.RANGELANDCONGRESS.ORG, Pp. 548-549. July 16-22. Http://2016CANADA.RANGELANDCONGRESS.ORG
  • Work, G.; Striby, K., et al. (2015). Availability and Accessibility of Water for Livestock and Wildlife: A New Water Trough Design. National Grazing Lands Coalition's 6th National Conference on Grazing Lands! December 13-16, 2015, Grapevine, Texas, 6NCGL.
  • Xunde, L.; Pereira, M., et al. (2015). "Cryptosporidium rubeyi n.(Apicomplexa: Cryptosporidiidae) in multiple Spermophilus ground Squirrel species." International Journal for Parasitology-Parasites and Wildlife 4(2015): 343-350.
  • Larsen, R.; Striby, K., et al. (2015). Fourteen Years of Forage Monitoring on the California Central Coast Shows Tremendous Variation. Proceedings of the seventh California oak symposium: managing oak woodlands in a dynamic world.R. Standiford and K. Purcell. PSW-GTR-251, 273-281. 2015.
  • Larsen, R.; Striby, K., et al. (2015). Ranching Sustainability Analysis. Proceedings of the seventh California oak symposium: managing oak woodlands in a dynamic world, UC Berkely, and USDA Forest Service, PSW-GTR-251.
  • Benjamin, L.A.p; Jay-Russell, M.T., et al. (2015). "Risk Factors for Escherichia coli O157 on beef cattle ranches located near a major produce production region." Epidemiology and Infection 143(1): 81-93.
  • Brownsey, P.; and Larsen, R. (2014). "Managing Diversity in California: An Exploration or Range Management in California." Rangelands 36(5): 2-3.
  • Larsen, R.; Horney, M., et al. (2014). "Update of the 2014 Drought on California Rangelands." Rangelands 36(5): 52-58.
  • Thompson, L.; Voss, J., et al. (2012). Southern steelhead (Oncorhynchus mykiss), hard woody debris, and temperature in a California central coast watershed. Transactions of the American Fisheries Society. 141:2, 275-284.
  • Villalba, J.; Provenza, F., et al. (2011). "Preference for diverse pastures by sheep in response to intraruminal administrations of tannins, saponins, and alkaloids." Grass and Forage Science 66: 224-236.
  • McCreary, D.; Tietje, W., et al. (2011). "Tree Shelters and Weed Control Enhance Growth and Survival of Natural Blue Oak Seedlings." California Agriculture 65(4): 192-196.
  • George, M.; Larsen, R., et al. (2010). "Determining Drought on California’s Mediterranean-Type Rangelands: The Noninsured Crop Disaster Assistance Program." Rangelands 32(3): 16-20.
  • Zingo, J.; George, M., et al. (2009). Ranching Sustainability Self-Assessment Project. Grazing Lands Conservation Initiative’s 4th National Conference on Grazing Lands. Reno, NV. December 13-16, 2009. http://esis.sc.egov.usda.gov/
  • George, M.; Larsen, R., et al. (2008). Clay Loam (Linne) Ecological Site Description (R015XI017CA). Ecological Site Information System. USDA Natural Resources Conservation Service. http://esis.sc.egov.usda.gov/
  • George, M.; Barry, S., et al. (2008). Coastal Clayey (Diablo, Cibo, Cropley) High Production Ecological Site Description (R015XI020CA). Ecological Site Information System. USDA Natural Resources Conservation Service. http://esis.sc.egov.usda.gov/
  • Meade, D.; Althouse, L., et al. (2008). Diversity and Abundance Comparisons Between Vineyard and Grazing Land Adjacent to Oak Woodland. Sixth Symposium on Oak Woodlands: California’s Oaks: Today’s Challenges, Tomorrows Opportunities. Sonoma, CA. USDA Forest Service PSW-GTR-217. October 9-12, 2006.
  • George, M.; McDougald, N., et al. (2008). "Effectiveness of Nutrient Supplement Placement for Changing Beef Cow Distribution." Journal of Soil and Water Conservation 63(1): 11-17.
  • George, M.; Barry, S., et al. (2008). Fine Loamy Upland (Los Osos) Ecological Site Description (R015XI012CA). Ecological Site Information System. USDA Natural Resources Conservation Service. http://esis.sc.egov.usda.gov/
  • George, M.; Barry, S., et al. (2008). Fine Loamy Upland Ecological Site Description (R015XI015CA). Ecological Site Information System. USDA Natural Resources Conservation Service. http://esis.sc.egov.usda.gov/
  • George, M.; Becchetti, T., et al. (2008). Loamy Uplands (Santa Lucia, Lockwood, Sheridan, Arbuckle) Ecological Site Description (R015XI022CA). Ecological Site Information System. USDA Natural Resources Conservation Service. http://esis.sc.egov.usda.gov/
  • Larsen, R.; Althouse, L., et al. (2008). Nutrient and Sediment Transport from a New Vineyard in an Oak Woodland. Sixth Symposium on Oak Woodlands: California’s Oaks: Today’s Challenges, Tomorrows Opportunities. Sonoma, CA. USDA Forest Service PSW-GTR-217. October 9-12, 2006.
  • Thompson, L.; Voss, J., et al. (2008). Role of Hardwood in Forming Habitat for Southern California Steelhead. Sixth Symposium on Oak Woodlands: California’s Oaks: Today’s Challenges, Tomorrows Opportunities. Sonoma, CA. USDA Forest Service PSW-GTR-217. October 9-12, 2006.
  • George, M.; Larsen, R., et al. (2008). Shallow Fine Loamy Ecological Site Description (R015XI006CA). Ecological Site Information System. USDA Natural Resources Conservation Service. http://esis.sc.egov.usda.gov/
  • George, M.; Larsen, R., et al. (2008). Silt Loam (Gazos) Ecological Site Description (R015XI023CA). Ecological Site Information System. USDA Natural Resources Conservation Service. http://esis.sc.egov.usda.gov/
  • George, M.; Jensen, W., et al. (2007). Coastal Fine Loamy Ecological Site Description (R015XI004CA). Ecological Site Information System. USDA Natural Resources Conservation Service. http://esis.sc.egov.usda.gov/
  • George, M.; Larsen, R., et al. (2007). Fine Loamy Ecological Site Description (R015XI003CA). Ecological Site Information System. USDA Natural Resources Conservation Service. http://esis.sc.egov.usda.gov/
  • George, M.; Harper, J., et al. (2005). Implementation, participation and evaluation of a voluntary water quality protection program for grazing land owners and managers. International Grassland Congress. Dublin, Ireland.
  • Barry, S.; Guenther, K., et al. (2005). Understanding Livestock Grazing Impacts. UC ANR. Publication 21626. http://grazingimpacts.info/
  • Barry, S.; Guenther, K., et al. (2005). Understanding Livestock Grazing Impacts: a decision support tool to develop goal-oriented grazing management strategies. Utilisation of grazed grass in temperate systems.J. Murphy. Cork, Ireland. 209. July 2005.
  • Larsen, R.; Lewis, D., et al. (2005). Watershed Management in Oak Woodlands. A Planners Guide for Oak Woodlands.G. Guisti, D. McCreary and R. Standiford. Oakland, CA, UC ANR. Publication 3491: 32-38.
  • George, M.; Larsen, R., et al. (2004). "Cattle Grazing Has Varying Impacts On Stream-Channel Erosion In Oak Woodlands." California Agriculture 58(3): 138-143.
  • Thompson, L.; Larsen, R. (2004). Fish Habitat in Fresh Water Streams. UC ANR. Publication 8112.
  • George, M.; Larsen, R., et al. (2002). "Influence of Grazing on Channel Morphology of Intermittent Streams." Journal of Range Management 55(6): 551-557.
  • George, M.; McDougald, N., et al. (2001). Sediment Dynamics and Sources in a Grazed Hardwood Rangeland Watershed. USDA Forest Service General Technical Report. PSW-GTR-184, 65-73.
  • Tate, K.; Atwill, E., et al. (2000). "Cryptosporidium parvum Transport from Cattle Fecal Deposits on California Rangelands." Journal of Range Management 53(3): 295-229.
  • Larsen, R.; Krueger, W., et al. (1998). "Viewpoint: Livestock Influences on Riparian Zones and Fish Habitat: An Analysis of the Literature." Journal of Range Management 51(6): 661-664.
  • Larsen, R.; Krueger, W., et al. (1997). Livestock Influences on Riparian Zones and Fishery Habitat: A Bibliography. Oregon State University Extension Service. Corvallis, OR. EM 8660.
  • Larsen, R.; George, M., et al. (1997). Preliminary Results from the Evaluation of Different Seasons and Intensities of Grazing on the Erosion of Intermittent Streams at the San Joaquin Experimental Range. USDA Forest Service General Technical Report. Albany, CA, U.S. Department of Agriculture. PSW-GTR-160, 331-337.
  • Larsen, R. (1996). Survival and Transport of Fecal Pathogens in Grazed Watersheds. Livestock Management in Grazed Watersheds: A Review of Practices that Protect Water Quality.M. George. Oakland, CA, UC ANR. Publication 3381: 59-71.
  • Larsen, R.; Miner, J., et al. (1994). "Water-Quality Benefits of Having Cattle Manure Deposited Away from Streams." Bioresource Technology 48: 113-118.
  • Larsen, R.; Buckhouse, J., et al. (1988). Rangeland Cattle and Manure Placement: A Link to Water Quality. Oregon Academy of Science Proceedings. 24, 7-15.

Non-Peer Reviewed

  • Larsen, Royce (2023). Grazing Reduces Fuel Loads Which Reduces Fire Risks. Livestock, Range, and Watershed Newsletter. San Luis Obispo and Monterey Counties.R. Larsen. Summer 2023.
  • Larsen, Royce (2023). Irrigated Pasture Seeding Trial. Livestock, Range, and Watershed Newsletter. San Luis Obispo and Monterey Counties.R. Larsen. http://cesanluisobispo.ucanr.edu/Custom_Program355/Newsletter_810/. Spring 2023.
  • Larsen, Royce (2023). Weather Update. Livestock, Range, and Watershed Newsletter. San Luis Obispo and Monterey Counties.R. Larsen. http://cesanluisobispo.ucanr.edu/Custom_Program355/Newsletter_810/. Spring 2023.
  • Larsen, Royce (2022). Adapting Ranch Management to Prolonged Drought and Changing Plant Species Composition. . Plenary III Session, The 8th California Oak Symposium: Sustaining Oak Woodlands and Future Conditions. October 31 – November 3, 2022. Embassy Suites, San Luis Obispo, California. https://ucanr.edu/sites/oaksymposium/files/375103.pdf.
  • Ozeran, Rebecca (2022). An Updated California Rangeland Decision Assistance Tool: the CRSA. The 8th California Oak Symposium: Sustaining Oak Woodlands and Future Conditions. October 31 – November 3, 2022. Embassy Suites, San Luis Obispo, California. https://ucanr.edu/sites/oaksymposium/files/375103.pdf.
  • Larsen, Royce (2022). California Ground Squirrel Study. Livestock, Range, and Watershed Newsletter. San Luis Obispo and Monterey Counties. Summer 2022. https://cesanluisobispo.ucanr.edu/newsletters/Livestock-_Range-_Watershed-_Oaks93731.pdf
  • Larsen, Royce (2022). Fire, Flood, Mud and Drought – Is Our Climate Changing? Livestock, Range, and Watershed Newsletter. San Luis Obispo and Monterey Counties. Summer 2022. https://cesanluisobispo.ucanr.edu/newsletters/Livestock-_Range-_Watershed-_Oaks93731.pdf
  • Rao, D. (2022). Influence of California ground squirrels on forage availability for ranching operations. 30th Vertebrate Pest Conference. March 2022.
  • Baldwin, R. A. (2022). Influence of California ground squirrels on forage availability for ranching operations. 29th Annual Meeting of the Wildlife Society National Conference. November 7, 2022.
  • Larsen, Royce (2022). Survival and Growth of Blue Oaks Under Power Transmission Lines10 Years After Tree Topping. The 8th California Oak Symposium: Sustaining Oak Woodlands and Future Conditions. October 31 – November 3, 2022. Embassy Suites. San Luis Obispo, CA. https://ucanr.edu/sites/oaksymposium/files/375103.pdf.
  • Larsen, Royce (2022). The 8th California Oak Symposium. Livestock, Range, and Watershed Newsletter. San Luis Obispo and Monterey Counties. Winter 2022. https://cesanluisobispo.ucanr.edu/Custom_Program355/Newsletter_810/?newsletteritem=95735
  • Baldwin, R. A. (2021). . Rangeland forage loss from California ground squirrels. Vertebrate Pest Control Research Advisory Committee Webinar.
  • Felix Ratcliff, Devii Rao (2021). Benefits of cattle grazing for reducing fire fuels and fire hazard. Western Livestock Journal. : https://www.wlj.net/top_headlines/benefits-of-cattle-grazing-for-reducing-fire-fuels-and-fire-hazard/article_f5067342-ee0f-11ea-9bc1-3b86a02abdd0.html. January 31, 2021.
  • Larsen, Royce (2021). Forage Quantity and Quality Changes Over the Summer Dry Period. Livestock, Range, and Watershed Newsletter. San Luis Obispo and Monterey Counties. http://cesanluisobispo.ucanr.edu/Custom_Program355/Newsletter_810/. Spring 2021:2.
  • Larsen, Royce (2021). Summer Growing Plants: Are they Poisonous, Good Forage, Or Just Plain Weeds. Livestock, Range, and Watershed Newsletter. San Luis Obispo and Monterey Counties. http://cesanluisobispo.ucanr.edu/Custom_Program355/Newsletter_810/. Spring 2021:4.
  • Larsen, Royce (2021). We are in a Drought-Again! Livestock, Range, and Watershed Newsletter. San Luis Obispo and Monterey Counties. http://cesanluisobispo.ucanr.edu/Custom_Program355/Newsletter_810/. Spring 2021:1.
  • Felix Ratcliff, Devii Rao (2020). Benefits of Cattle Grazing for Reducing Fire Fuels and Fire Hazard. UCANR Blog. https://ucanr.edu/blogs/blogcore/postdetail.cfm?postnum=43533.
  • Larsen, Royce; Shapero, Matthew, et al. (2020). Forage Production Report, California Central Coast, 2001-2019. https://ucanr.edu/sites/SLO/files/317791.pdf. 20 pages.
  • Scott Devine, Anthony O'Geen (2020). Soil Organic Carbon. Livestock, Range, and Watershed Newsletter. San Luis Obispo and Monterey Counties.R. Larsen. http://cesanluisobispo.ucanr.edu/Custom_Program355/Newsletter_810/, UCANR. Spring 2020, 14 Pages. 2020.
  • Larsen, Royce (2020). Weather Outlook-Spring 2020. Livestock, Range, and Watershed Newsletter. San Luis Obispo and Monterey Counties.R. Larsen. http://cesanluisobispo.ucanr.edu/Custom_Program355/Newsletter_810/. Spring 2020, 14 Pages.
  • Larsen, Royce (2019). Updates from Research Projects on the Central Coast. Livestock, Range, and Watershed Newsletter. San Luis Obispo and Monterey Counties, Vol. Summer 2019. http://cesanluisobispo.ucanr.edu/newsletters/Livestock-_Range-_Watershed-_Oaks81570.pdf.
  • Larsen, Royce (2019). Updates from Research Projects on the Central Coast. Livestock, Range, and Watershed Newsletter. San Luis Obispo and Monterey Counties. http://cesanluisobispo.ucanr.edu/newsletters/Livestock-_Range-_Watershed-_Oaks81570.pdf. Summer 2019, 2 Pages.
  • Guenther, Keith; Doran, Karen, et al. (2018). . The Herbage Assessed Remotely to Predict Environmental Risk (HARPER) Process Improves Effectiveness of rangeland monitoring. Abstract of Papers, Society for Range Management, Annual Meeting, Reno NV.
  • Royce Larsen, William Tietje (2018). The Ranchers Sustainability Self-Assessment (RSA). The 7th National Grazing Lands Conference, Taking the Gamble out of Grazing. December 2-5, 2018. Reno, NV.
  • Guenther, Keith; Doran, Karen, et al. (2018). Using LANDSET (HARPER) processes for herbage assessments of Blunt Nosed Leopard Lizard (BNLP) habitat status.S. Managment. Abstract of Papers. Society for Range Management, Annual Meeting. Reno NV.
  • Liu, Han; Jin, Yufang, et al. (2017). Estimating Rangeland Forage Production Using Remote Sensing Data from a small Unmanned Aerial System (sUAS). Abstract of Papers. American Geophysical Union (AGU) Society, Fall Meeting, December 11-15, 2017. New Orleans, Louisiana.
  • Lui, Han; Jin, Yugang, et al. (2017). Estimating Rangeland Forage Production Using Remote Sensing Data from a Small Unmanned Aerial System (sUAS). Abstract of Papers, American Geophysical Union (AGU), Fall Meeting, December 11-15, 2017, New Orleans, Louisiana, USA.
  • Larsen, Royce (2017). Fire, Mud, Flood and Drought. Livestock, Range, and Watershed Newsletter. San Luis Obispo and Monterey Counties, Vol. Spring 2017. http://cesanluisobispo.ucanr.edu/newsletters/Livestock-_Range-_Watershed-_Oaks69395.pdf. Spring 2017.
  • Larsen, Royce; Striby, Karl, et al. (2017). Forage Production Report, San Luis Obispo County 2001-2017. http://cesanluisobispo.ucanr.edu/files/273417.pdf. 14 pages.
  • Larsen, Royce; Striby, Karl, et al. (2016). Forage Production Report, San Luis Obispo County 2001-2016. http://cesanluisobispo.ucanr.edu/files/243630.pdf. 18 pages.
  • Larsen, Royce (2016). The “Ground Drinker” Water Trough. Livestock, Range, and Watershed Newsletter. San Luis Obispo and Monterey Counties, Vol. Winter 2016. http://cesanluisobispo.ucanr.edu/Custom_Program355/Newsletter_810/.
  • Larsen, R.; Striby, K.: and Horney (2015). . FORAGE MONITORING ON THE CALIFORNIA CENTRAL COAST SHOWS TREMENDOUS VARIATION. 68th Annual Society for Range Management, January 31 - February 6, 2015, Abstracts of Papers. Society for Range Management Annual Meeting, Sacramento, California. January 31 – February 6, 2015.
  • Brownsey, Philip; Barry, Sheila, et al. (2015). . USING MULTI-STATE MODELING TO DESCRIBE OPTIMAL TREATMENT WINDOWS FOR MEDUSAHEAD AND BARBED GOATGRASS. 68th Annual Society for Range Management, January 31 - February 6, 2015, Abstracts of Papers. Society for Range Management Annual Meeting, Sacramento, California. January 31 – February 6, 2015.
  • Larsen, R. (2015). Drought-Where are we today? LLivestock, Range, and Watershed Newsletter. San Luis Obispo and Monterey Counties, Vol. Spring Summer 2015. Spring-Summer 2015. 2015. http://cesanluisobispo.ucanr.edu/newsletters/Livestock-_Range-_Watershed-_Oaks57730.pdf
  • Larsen, Royce; Striby, Karl, et al. (2015). Forage Production Report, San Luis Obispo County 2001-2015. 350 N. Main Street. Templeton, CA 93465. 10 pages. 2015. http://cesanluisobispo.ucanr.edu/files/213802.pdf
  • Larsen, Royce; Tietje, William, et al. (2015). GLCI FORUM: THE RANCHING SUSTAINABILITY SELF-ASSESSMENT: A WORKSHOP FOR RANCHERS AND LAND MANAGERS. 68th Annual Society for Range Management, January 31 - February 6, 2015, Abstracts of Papers. Society for Range Management Annual Meeting, Sacramento, California. January 31 – February 6, 2015.
  • Larsen, R. (2015). Prepared for a wet winter? Livestock, Range, and Watershed Newsletter. San Luis Obispo and Monterey Counties, Vol. Spring Summer 2015. 2015. . http://cesanluisobispo.ucanr.edu/newsletters/Livestock-_Range-_Watershed-_Oaks57730.pdf
  • Tierney, Katie; LynneDee Althouse, Meade, et al. (2015). THE FUTURE: COMBINING ENERGY PRODUCTION WITH RANGELAND CONSERVATION. 68th Annual Society for Range Management, January 31 - February 6, 2015.
  • Larsen, R. (2015). Update on Camelina and Canola Trials in SLO County. Livestock, Range, and Watershed Newsletter. San Luis Obispo and Monterey Counties, Vol. Spring Summer 2015. 2015. http://cesanluisobispo.ucanr.edu/newsletters/Livestock-_Range-_Watershed-_Oaks57730.pdf
  • Larsen, R.; Atwill, R., et al. (2014). . Pathogen Risks from Livestock, Wildlife and the Environment in the California Central Coast. Society for Range Managment. Feb 8-13.
  • Battany, Mark; Bianchi, Mary, et al. (2014). 2014 drought: Impacts on San Luis Obispo County Agriculture. 2156 Sierra Way, Ste. C. San Luis Obispo, CA 93421. 17 pages. 2014. http://cesanluisobispo.ucanr.edu/files/201665.pdf
  • Larsen, R.; George, N. (2014). Camelina and Canola Trials Update. Livestock, Range, and Watershed Newsletter. San Luis Obispo and Monterey Counties.R. Larsen. July. http://cesanluisobispo.ucanr.edu/Custom_Program355/Newsletter_810/
  • Tietje, B. (2014). Drought Effects on Native Oaks. Livestock, Range, and Watershed Newsletter. San Luis Obispo and Monterey Counties.R. Larsen. January. http://cesanluisobispo.ucanr.edu/Custom_Program355/Newsletter_810/
  • Larsen, R.; Horney, M. (2014). Drought Update in California. Livestock, Range, and Watershed Newsletter. San Luis Obispo and Monterey Counties.R. Larsen. July. http://cesanluisobispo.ucanr.edu/Custom_Program355/Newsletter_810/
  • Larsen, R.E.; M. Horney, M. (2014). Forage Production Report for San Luis Obispo County 2001 – 2013. http://cesanluisobispo.ucanr.edu/Custom_Program355/Forage_Production_Report/
  • George, M.R.; Becchetti, T.A., et al. (2014) Monitoring Annual Rangeland Forage Production. 1-6
  • Larsen, R.; Atwill, R., et al. (2014). Pathogen Risks from Livestock, Wildlife and the Environment in the California Central Coast. 9th Biennial Association of Natural Resource Professionals Conference. May 18-22. http://ucanr.edu/sites/ANREP/files/190562.pdf
  • Tietje, B.; Work, G., et al. (2014). Ranching Sustainability Analysis Program. Livestock, Range, and Watershed Newsletter. San Luis Obispo and Monterey Counties.R. Larsen. Winter 2014. January. http://cesanluisobispo.ucanr.edu/Custom_Program355/Newsletter_810/
  • Tietje, B.; Work, G., et al. (2014). Staying sustainable – Local Ranching Advocates Develop Sustainability Analysis Program. California Cattlemen. July/August, 70-72.
  • Larsen, R. (2014). The Drought Continues. Livestock, Range, and Watershed Newsletter. San Luis Obispo and Monterey Counties.R. Larsen. January. http://cesanluisobispo.ucanr.edu/Custom_Program355/Newsletter_810/
  • Tietje, B.; Work, G., et al. (2014). The Ranching Sustainability Analysis System. 9th Biennial Association of Natural Resource Professionals Conference. May 18-22. http://ucanr.edu/sites/ANREP/files/190562.pdf
  • Larsen, R.E.; Striby, K., et al. (2014). Thirteen Years of Forage Monitoring on the California Central Coast Shows Tremendous Variation in Rainfall, Production and Plant Species Composition. Association of Natural Resource Professionals Conference. May 18-22. http://ucanr.edu/sites/ANREP/files/190562.pdf
  • Larsen, R. (2014). Will we have a Wet Winter? Are you Ready? Livestock, Range, and Watershed Newsletter. San Luis Obispo and Monterey Counties.R. Larsen. July. http://cesanluisobispo.ucanr.edu/Custom_Program355/Newsletter_810/
  • Larsen, R.; Horney, M. (2013). A Drought – Again. Livestock, Range, and Watershed Newsletter. San Luis Obispo and Monterey Counties. Summer 2013.
  • Larsen, R.; Horney, M. (2013). Forage Production Report for San Luis Obispo County 2001 – 2013.
  • Larsen, R. (2013). Megastorms, Droughts and Range Management. Livestock, Range, and Watershed Newsletter. San Luis Obispo and Monterey Counties. Winter 2013.
  • Larsen, R. (2013). Tannins, Are They Good or Bad? Livestock, Range, and Watershed Newsletter. San Luis Obispo and Monterey Counties. Winter 2013.
  • Larsen, R. (2012). Droughts or Floods: Which will It Be? Livestock, Range, and Watershed Newsletter. San Luis Obispo and Monterey Counties. Spring 2012.
  • Larsen, R. (2012). Droughts: A Challenge to Ranching in Oak Woodlands. Oak Conservation Blog.S. Kolding. March 9, 2012. http://ucanr.org/blogs/OakCon/
  • Larsen, R. (2012). The Soil Food Web. Livestock, Range, and Watershed Newsletter. San Luis Obispo and Monterey Counties. Spring 2012.
  • Tietje, W.; McCreary, D., et al. (2011). A New Strategy to Enhance Blue Oak Regeneration. Livestock, Range, and Watershed Newsletter. San Luis Obispo and Monterey Counties. Winter 2011.
  • Larsen, R. (2011). Can We Improve an Animals Chance for Better Nutrition and Weight Gain? Livestock, Range, and Watershed Newsletter. San Luis Obispo and Monterey Counties. Winter 2011.
  • Larsen, R. (2011). Conservation and Management of Rangelands. Livestock, Range, and Watershed Newsletter. San Luis Obispo and Monterey Counties. Winter 2011.
  • Larsen, R.; Striby, K., et al. (2011). Peak Forage Production Report for San Luis Obispo County 2001 – 2011.
  • Thompson, L.; Voss, J., et al. (2011). Southern steelhead (Oncorhynchus mykiss), hard woody debris, and temperature: predicting climate change effects in a California central coast watershed. 45th Annual Conference California-Nevada Chapter American Fisheries Society. Folsom, CA. March 30-April 2, 2011.
  • Larsen, R. (2011). The “Waterboxx” A Device to help with planting Trees. Livestock, Range, and Watershed Newsletter. San Luis Obispo and Monterey Counties. April 2011.
  • Larsen, R.; Tietje, W. (2011). The Native Tree Committee of San Luis Obispo. Livestock, Range, and Watershed Newsletter. San Luis Obispo and Monterey Counties. Spring 2011.
  • Larsen, R. (2010). Chicago Climate Exchange. Livestock, Range, and Watershed Newsletter. San Luis Obispo and Monterey Counties. Spring 2010.
  • Tietje, W.; Zingo, J., et al. (2010). Ranching Sustainability Assessment System. Western Section of the Wildlife Society Conference. Visalia, CA. January 26-29, 2010.
  • Larsen, R. (2010). Range Management as it Relates to Water Quality Regulations. Livestock, Range, and Watershed Newsletter. San Luis Obispo and Monterey Counties. Fall 2010.
  • Tietje, W.; Larsen, R., et al. (2010). Sycamore Study in San Luis Obispo County. Livestock, Range, and Watershed Newsletter. San Luis Obispo and Monterey Counties. Fall 2010.
  • Horney, M.; Rutherford, R., et al. (2010). Topaz Solar Farm Grazing Test. Topaz Solar Farms Report. Oakland, CA. October 2010.
  • Tietje, W.; Zingo, J., et al. (2009). Ranching Sustainability Analysis. Oaks’n’Folks Newsletter. University of California Integrated Hardwood Range Management Program. 24:1. December 2009. http://groups.ucanr.org/oakrange
  • Work, G.; Zingo, J., et al. (2009). Ranching Sustainability Self-Assessment Project. Grazing Lands Conservation Initiative 4th National Conference. Reno, NV. December 13-16, 2009.
  • Work, G.; Garrison, G., et al. (2009). Ranching Sustainability Self-Assessment Project. Western Sustainable Agriculture Research and Education Western Regional California Conference. Visalia, CA. December 2-3, 2009.
  • Larsen, R. (2009). The BEHAVE Program at USU. Livestock, Range, and Watershed Newsletter. San Luis Obispo and Monterey Counties. Spring 2009.
  • Larsen, R.; Summers, A., et al. (2009). The Reduction of Escherichia Coli O157:H7 in Cattle Grazing Different Forages on Irrigated Pastures. 8th Annual Western Region Extension Professional Development Conference. Mesquite NV. November 10-12, 2009.
  • Becchetti, T.; Schriefer, C., et al. (2008). Controlling Medusahead – Identifying the period of susceptibility. Society for Range Management 61st Annual Meeting. Louisville, KY. January 26-31, 2008.
  • Frost, W.; McDougald, N., et al. (2008). Disappearance of residual dry matter on coastal and Sierran annual rangeland of California. Society for Range Management: Building Bridges Grasslands to Rangelands. Louisville, KY. Abstract No. 2435.
  • Frost, W.; McDougald, N., et al. (2008). Disappearance of residual dry matter on coastal and Sierran annual rangeland of California. Society for Range Management: Building Bridges Grasslands to Rangelands. Louisville, KY. Abstract No. 2435.
  • Meade, D.; Althouse, L., et al. (2008). Diversity and Abundance Comparisons Between Vineyard and Grazing Land Adjacent to Oak Woodland. Sixth Symposium on Oak Woodlands: California’s Oaks: Today’s Challenges, Tomorrows Opportunities. October 9-12, 2006.
  • Larsen, R. (2008). Drought and Grazing. Livestock, Range, and Watershed Newsletter. San Luis Obispo and Monterey Counties. Winter 2008.
  • Laca, E.; Becchetti, T., et al. (2008). Grazing Strategies to Control Medusahead in California. Davis, CA. Project Number: SW06-038:Cooperative Agreement Number: 2006-38640-16743.
  • Rice, E.; Piirto, D., et al. (2008). Identifying and Addressing Contemporary Issues in Central Coast Oak Woodlands. Sixth Symposium on Oak Woodlands: California’s Oaks: Today’s Challenges, Tomorrows Opportunities. October 9-12, 2006.
  • Larsen, R.; Althouse, L., et al. (2008). Nutrient and Sediment Transport From a New Vineyard in an Oak Woodland. Sixth Symposium on Oak Woodlands: California’s Oaks: Today’s Challenges, Tomorrows Opportunities. October 9-12, 2006.
  • Thompson, L.; Voss, J., et al. (2008). Role of Hardwood in Forming Habitat for Southern California Steelhead. Sixth Symposium on Oak Woodlands: California’s Oaks: Today’s Challenges, Tomorrows Opportunities. October 9-12, 2006.
  • Larsen, R.; Barry, S., et al. (2008). State and Transition Models for California’s Central Coast Oak Woodlands. Sixth Symposium on Oak Woodlands: California’s Oaks: Today’s Challenges, Tomorrows Opportunities. USDA Forest Service PSW-GTR-217. October 9-12, 2006.
  • Voss, J.; Thompson, L., et al. (2007). Cooperator Report: Habitat Requirements of Steelhead in the Upper Salinas River Watershed. Templeton, CA, UCCE.
  • Voss, J.; Thompson, L., et al. (2007). Cooperator Report: Habitat Requirements of Steelhead in the Upper Salinas River Watershed. Davis, CA.
  • Thompson, L.; Voss, J., et al. (2007). Distribution of Steelhead in the Upper Salinas River Watershed: Seasonal and Inter-annual Shifts. Annual American Fisheries Society Conference. San Francisco CA. September 2007.
  • Larsen, R. (2007). Steelhead in the Upper Salinas. Livestock, Range, and Watershed Newsletter. San Luis Obispo and Monterey Counties. Summer 2007.
  • Larsen, R. (2007). The E. coli Outbreak and the Livestock Industry. Livestock, Range, and Watershed Newsletter. San Luis Obispo and Monterey Counties. Winter 2007.
  • Larsen, R. (2006). Central Coast Oak Survey. Livestock, Range, and Watershed Newsletter. San Luis Obispo and Monterey Counties. August 2006.
  • Larsen, R. (2006). Grazing Management and RDM. Livestock, Range, and Watershed Newsletter. San Luis Obispo and Monterey Counties. Spring 2006.
  • Becchetti, T.; Tate, K., et al. (2006). Riparian grazing strategies and their impact on riparian health. Rangeland Watershed Workgroup Meeting. Davis, CA.
  • Becchetti, T.; Tate, K., et al. (2006). Riparian grazing strategies and their impact on riparian health. International Conference on the Future of Agriculture: Science, Stewardship, and Sustainability. Sacramento, CA.
  • Becchetti, T.; Tate, K., et al. (2006). Riparian grazing strategies and their impact on riparian health. Cal-Pac Society for Range Management. San Jose, CA.
  • Larsen, R.; Barry, S., et al. (2006). State and Transition Models for California’s Central Coast Oak Woodlands. Society for Range Management 59th Annual Meeting. Vancouver, Canada. February 12-17, 2006.
  • Larsen, R.; Barry, S., et al. (2006). Using Environmental and economic indicators to compare and evaluate different grazing strategies. Society for Range Management 59th Annual Meeting. Vancouver, Canada. February 12-17, 2006.
  • Larsen, R. (2005). Rainfall and Forage Variability in San Luis Obispo County. Livestock, Range, and Watershed Newsletter. San Luis Obispo and Monterey Counties. October 2005.
  • Larsen, R.; Atwill, E., et al. (2005). Statewide seasonal trends and small-scale spatial patterns of fecal shedding of Cryptosporidium in California ground squirrels. Society for Range Management Annual Meeting. Fort Worth, TX. February 5-11 2005.
  • Larsen, R. (2005). The Role of Fire in Rangeland Management. Livestock, Range, and Watershed Newsletter. San Luis Obispo and Monterey Counties. March 2005.
  • Barry, S.; Guenther, K., et al. (2005). Understanding Livestock Grazing Impacts: A decision support tool to develop goal-oriented grazing management strategies. International Grassland Congress. Dublin, Ireland.
  • Larsen, R. (2005). Water Rights (Stock Pond) Fees Update. Livestock, Range, and Watershed Newsletter. San Luis Obispo and Monterey Counties. October 2005.
  • Larsen, R. (2004). Annual vs Perennial Grass in Relation to Watershed Function. Annual Conference of the California Native Grass Association. Modesto, CA. April 22-24, 2004.
  • Larsen, R. (2004). Average Rainfall and Perennial Grass Seeding. Livestock, Range, and Watershed Newsletter. San Luis Obispo and Monterey Counties. Winter 2004.
  • Larsen, R.; Striby, K. (2004). Establishment of Perennial Grasses on Retired Cropland in California. Society for Range Management Annual Meeting. Salt Lake City, Utah. January 24-30, 2004.
  • Larsen, R. (2004). Fire in California Oak Woodlands. Livestock, Range, and Watershed Newsletter. San Luis Obispo and Monterey Counties. Winter 2004.
  • Larsen, R. (2004). Stock Pond Fee. Livestock, Range, and Watershed Newsletter. San Luis Obispo and Monterey Counties. August 2004.
  • Larsen, R. (2004). Update on the Ranch Water Quality Short Course. Livestock, Range, and Watershed Newsletter. San Luis Obispo and Monterey Counties. August 2004.
  • Larsen, R.; Althouse, L. (2004). Water Quality Study of Three Drainages Associated With Cuesta Ridge Vineyard. Central Coast Regional Water Quality Control Board Report. San Luis Obispo, CA.
  • Larsen, R. (2003). Living with Wildland Fire. Livestock, Range, and Watershed Newsletter. San Luis Obispo and Monterey Counties. July 2003.
  • Larsen, R. (2003). Perennial Grass Seeding Risks. Livestock, Range, and Watershed Newsletter. San Luis Obispo and Monterey Counties. October 2003.
  • Larsen, R. (2003). Preventing Erosion During Winter Storms. Livestock, Range, and Watershed Newsletter. San Luis Obispo and Monterey Counties. October 2003.
  • Larsen, R. (2003). Rainfall Records in Paso Robles. Livestock, Range, and Watershed Newsletter. San Luis Obispo and Monterey Counties. February 2003.
  • Ward, T.; Tate, K., et al. (2003). Results of a Cross-Sectional Survey: Grazing Managment Effects on Riparian Habitat. Society for Range Management. Casper, Wyoming.
  • Ward, T.; Tate, K., et al. (2003). Riparian Friendly Grazing. Sierra Research and Extension Center Field Day Proceedings. 18-21.
  • Ward, T.; Tate, K., et al. (2003). Riparian Grazing-Can it work for me? California Cattlemen Magazine. July/August 2003.
  • Isensee, M.; Larsen, R., et al. (2003). Wildlife Habitat and the Working Agricultural Lands of San Luis Obispo County. Wildlife Habitat Workshop Report. San Luis Obispo, CA, UCCE.
  • Tate, K.; Lewis, D., et al. (2002). A Survey of Natural Resource Professionals on Threats to Water Resources on California Rangelands: A Statewide Workshop Series. California Department of Forestry and Fire Protection Final Report.
  • Larsen, R. (2002). Drought and Climate Change. Livestock, Range, and Watershed Newsletter. San Luis Obispo and Monterey Counties. July 2002.
  • Larsen, R. (2002). Evaluating Riparian Zone Literature Used To Make Management Decisions. Livestock, Range, and Watershed Newsletter. San Luis Obispo and Monterey Counties. March 2002.
  • Ward, T.; Tate, K., et al. (2002). Grazing California’s Annual Grassland Riparian Areas- Newest Research and Future Questions. Annual Grassland Short Course. UC Davis. December 10-12, 2002.
  • Larsen, R. (2002). West Nile Virus. Livestock, Range, and Watershed Newsletter. San Luis Obispo and Monterey Counties. October 2002.
  • Larsen, R. (2001). A Grazing Study on Intermittent Streams. Livestock, Range, and Watershed Newsletter. San Luis Obispo and Monterey Counties. March 2001.
  • Larsen, R.; Althouse, L. (2001). Erosion Control in Vineyards. Prepared for Robert Mondavi Winery, Central Coast. Templeton, CA, UCCE.
  • Larsen, R.; George, M., et al. (2001). Evaluation of different seasons and intensities of grazing on erosion along intermittent stream channels at the San Joaquin Experimental Range. Society for Range Management. Kona, Hawaii.
  • Larsen, R. (2001). Invasive Noxious Weeds. Livestock, Range, and Watershed Newsletter. San Luis Obispo and Monterey Counties. July 2001.
  • Larsen, R. (2001). Rangeland Water Quality Short Course. Livestock, Range, and Watershed Newsletter. San Luis Obispo and Monterey Counties. January 2001.
  • Larsen, R. (2001). Watershed Management and Non-Point Source Pollution. Livestock, Range, and Watershed Newsletter. San Luis Obispo and Monterey Counties. December 2001.
  • Larsen, R. (2000). A Reunion Field Day, Update on Rangeland WQ Short Courses. Livestock, Range, and Watershed Newsletter. San Luis Obispo and Monterey Counties. March 2000.
  • Larsen, R.; George, M., et al. (1999). Evaluation After Four Years of Different Seasons and Intensities of Grazing on Erosion Along Intermittent Stream Channels at the San Joaquin Experimental Range. Seventh National Nonpoint Source Monitoring Workshop. Morro Bay, CA. Sep. 1999.
  • Larsen, R. (1999). Other Water Quality News. Livestock, Range, and Watershed Newsletter. San Luis Obispo and Monterey Counties. June 1999.
  • Tietje, W.; Larsen, R. (1999). Values and Water-Quality Assessment of Intermittent Streams in California Oak Woodlands. Fact Sheet. UCCE.
  • Larsen, R. (1999). Water Quality Short Course Update. Livestock, Range, and Watershed Newsletter. San Luis Obispo and Monterey Counties. June 1999.
  • Larsen, R. (1999). Water Quality Update. Livestock, Range, and Watershed Newsletter. San Luis Obispo and Monterey Counties. December 1999.
  • Larsen, R.; Padgett, P., et al. (1998). Cattle Grazing in Relation to Vegetation, Soils, and the Desert Tortoise (Gopherus agassizzi): A Study of Grazing Exclosures in the Mojave Desert. Society for Range Mange. Guadalajara, Mexico. Feb. 8-12, 1998.
  • Larsen, R.; George, M., et al. (1998). Evaluation of different seasons and intensities of three years of grazing treatments on erosion along intermittent stream channels at the San Joaquin Experimental Range. The American Water Resources Association Specialty Conference on Rangeland Management & Water Resources. Reno, NV. May 27 30, 1998.
  • Larsen, R. (1998). Rangeland Monitoring, How Are You Doing? Livestock, Range, and Watershed Newsletter. San Luis Obispo and Monterey Counties. December 1998.
  • Larsen, R. (1998). Water Quality in Oak Woodlands. Oaks’ n’ Folks Newsletter. UC Integrated Hardwood Range Management Program. 13:2.
  • Larsen, R. (1998). Water Quality, The Saga Goes On. Livestock, Range, and Watershed Newsletter. San Luis Obispo and Monterey Counties. October 1998.
  • Larsen, R.; Pratini, N., et al. (1997). A Database for Natural Resource Management in San Bernardino and Riverside Counties in Southern California. Society for Range Mange. Rapid City, South Dakota. February 16-21, 1997.
  • Larsen, R.; Padgett, P., et al. (1997). Cattle Grazing in Relation to Vegetation, Soils, and the Desert Tortoise: A Study of Grazing Exclosures in the Mojave Desert. DANR Competitive Grant Project Accomplishment Report. Oakland, CA. Project #015. August 15 1997.
  • Standiford, R.; Scott, T., et al. (1997). Value of Oaks and Open Space on Private Property Values. DANR Competitive Grants Accomplishment Report. Oakland, CA. August 28, 1997.
  • Wubishet, A.; Larsen, R., et al. (1996). Amount and composition wastewater discharge from milking facilities of dairies in Southern California. American Science Association Annual Meeting. Corvallis OR. July 1996.
  • Larsen, R.; George, M., et al. (1996). Evaluation of Different Seasons and Intensities of Grazing on the Streambank Erosion along Intermittent Stream Channels at the San Joaquin Experimental Range. Society for Range Mange. Wichita, Kansas. February 10-15, 1996.
  • Larsen, R. (1996). Manure Loading into Streams from Direct Fecal Deposits. USDA Soil Conservation Service Fact Sheet. Davis, CA, UCCE Department of Agronomy and Range Science. 25.
  • Tate, K.; George, M., et al. (1996). Water Quality Research Report. UCCE Rangeland Water Quality Field Day. Madera CA. April 15, 1996.
  • George, M.; Larsen, R. (1995). Evaluation of Different Seasons and Intensities of Grazing on Streambank Erosion Along Intermittent Stream Channels at the San Joaquin Experimental Range. San Joaquin Experimental Range Field Day Proceedings. California Agricultural Technology Institute. CATI Publication 950403, 7-10.
  • Larsen, R.; George, M. (1995). Risks of Pathogen and Nutrient Transmission from Grazing Livestock to Surface Water Sources Based on Existing Literature. Annual Beef & Range Field Day Proceedings: “Managing Hardwood Rangelands to Maintain and Enhance Water Quality”. Browns Valley, CA, University of California, Sierra Foothill Research & Extension Center. 20 April 1995.
  • Larsen, R.; George, M. (1995). Stream Channel Measurements. Annual Beef & Range Field Day Proceedings: "Managing Hardwood Rangelands to Maintain and Enhance Water Quality". Browns Valley, CA, University of California, Sierra Foothill Research & Extension Center. 51-54. 20 April 1995.
  • Larsen, R. (1994). Fishery Habitat: 1) Living Space and Reproductive Requirements. USDA Soil Conservation Service Fact Sheet. Davis, CA, UCCE Department of Agronomy and Range Science. 26.
  • Larsen, R. (1994). Fishery Habitat: 2) Temperature Requirements. USDA Soil Conservation Service Fact Sheet. Davis, CA, UCCE Department of Agronomy and Range Science. 27.
  • Larsen, R. (1994). Fishery Habitat: 3) Sediment and Pollutants. USDA Soil Conservation Service Fact Sheet. Davis, CA, UCCE Department of Agronomy and Range Science. 28.
  • Larsen, R. (1994). Fishery Habitat: 4) Dissolved Oxygen. USDA Soil Conservation Service Fact Sheet. Davis, CA, UCCE Department of Agronomy and Range Science. 29.
  • Larsen, R.; Eddleman, L. (1992). Precipitation Interception Losses by a Western Juniper Forest. Society for Range Mange. Spokane, WA. Feb 9-14, 1992.
  • Larsen, R.; Buckhouse, J. (1990). Overland Bacterial Movement From Fresh Bovine Feces. Society for Range Mange. Reno, NV. February 12-18, 1990.
  • Larsen, R.; Buckhouse, J., et al. (1988). Frequency of Cattle Fecal Deposition in a Stream. Water Quality Impacts of Alternate Rangeland Management Systems.J. Moore, J. Buckhouse and J. Miner. Corvallis, Oregon, Oregon State University. Project 85-CRSR-2-2718.
  • Larsen, R.; Buckhouse, J., et al. (1988). Sampling Transects as an Indicator of Manure Placement. Water Quality Impacts of Alternate Rangeland Management Systems.J. Moore, J. Buckhouse and D. Marquis. Corvallis, OR, Oregon State University. Project 85-CRSR-2-2718.

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