Division of Agriculture and Natural Resources
Division of Agriculture and Natural Resources
Division of Agriculture and Natural Resources
University of California
Division of Agriculture and Natural Resources

Dr Royce Larsen E.

Photo of Dr Royce Larsen E.
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

  • Macon, D.K.; Barry, S; Becchetti T., Davy; Doran, M.P.; Finzel, J.A.; George, H.; Harper, J.M.; Huntsinger, L.; Ingram, R.S.; Lancaster, D.E.; Larsen, R.E.; Lewis, D.J.; Lile, D.F.; McDougald, N.K.; Mashiri, F.E.; Nader, G.; Oneto, S.R.; Stackhouse, J.W.; Roche, L.M. (2016). "Coping with drought on California Rangelands." Rangelands 38(4): 222-228.
  • Becchetti, T.; George, M.; McDougald, N.; Dudley, D.; Connor, M.; Vaughn, C.; Forero, L.; Frost, W.; Larsen, R.; Davy, J.; Striby, K.; Doran, M.; Marrkegard, G. (2016) Rangeland Management Series: Annual Range Forage Production. University of California, Agriculture and Natural Resouces ANR 8018, 1-13
  • Larsen, R.E.; Tietje, W.; Lazanoff, A.; Work, G.; Sinton, S.; Pritchard, C.; Striby., K. (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.
  • Brownsey, P.; James, J.; Barry, S.; Becchetti, T.; Davy, J.; Doran, M.; Forero, L.; Harper, J.; Larsen, R.; Larson-Praplan, S.; Zhang, J.; Laca., E. (2016) Using phenology to design optimal mowing and grazing treatments for medusahead (Taeniatherum caput-medusae). Rangeland Ecology and Management
  • Work, G.; Striby, K.; Tietje, W.; Barnett, M.; Larsen, R. (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.; Larsen, R.; Xiao, C.; Vodoz, T.; Phillips, R.; Striby, K.; McCowan, B.; Atwill, E. (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.; and Horney, M. (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.
  • Larsen, R.; Striby, K.; M., and Horney (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.; Atwill, E.R.; Cooley, M.B.; Carychao, D.; Larsen, R.E.; Mandrell, and R.E. (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.; and Macon, D. (2014). "Update of the 2014 Drought on California Rangelands." Rangelands 36(5): 52-58.
  • Thompson, L.; Voss, J.; Larsen, R.; Tietje, W.; Cooper, R.; Moyle, P. (2012). Southern steelhead (Oncorhynchus mykiss), hard woody debris, and temperature in a California central coast watershed. Transactions of the American Fisheries Society. 141: 275-284.
  • Villalba, J.; Provenza, F.; Clemensen, A.; Larsen, R.; Junke, J. (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.; Davy, J.; Larsen, R.; Doran, M.; Flavel, D.; Sergio, S. (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.; McDougald, N.; Vaughn, C.; Flavel, D.; Dudley, D.; Frost, W.; Striby, K.; Forero, L. (2010). "Determining Drought on California’s Mediterranean-Type Rangelands: The Noninsured Crop Disaster Assistance Program." Rangelands 32(3): 16-20.
  • Zingo, J.; George, M.; Larsen, R.; Tietje, W. (2009). Ranching Sustainability Self-Assessment Project. Grazing Lands Conservation Initiative’s 4th National Conference on Grazing Lands. Reno, NV,
  • George, M.; Larsen, R.; Barry, S.; Striby, K.; Oster, K.; Marquis, D. (2008). Clay Loam (Linne) Ecological Site Description (R015XI017CA). Ecological Site Information System. USDA Natural Resources Conservation Service.
  • George, M.; Barry, S.; Ward, T.; Larsen, R.; Davy, J.; Larsen, R.; Striby, K. (2008). Coastal Clayey (Diablo, Cibo, Cropley) High Production Ecological Site Description (R015XI020CA). Ecological Site Information System. USDA Natural Resources Conservation Service.
  • Meade, D.; Althouse, L.; Larsen, R. (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
  • George, M.; McDougald, N.; Jensen, W.; Larsen, R.; Cao, D.; Harris, N. (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.; Larson, S.; Becchetti, T.; Harper, J.; Larsen, R.; Schriefer, C.; Striby, K.; Lennox, M. (2008). Fine Loamy Upland (Los Osos) Ecological Site Description (R015XI012CA). Ecological Site Information System. USDA Natural Resources Conservation Service.
  • George, M.; Barry, S.; Larson, S.; Becchetti, T.; Harper, J.; Larsen, R.; Schriefer, C.; Striby, K.; Lennox, M. (2008). Fine Loamy Upland Ecological Site Description (R015XI015CA). Ecological Site Information System. USDA Natural Resources Conservation Service.
  • George, M.; Becchetti, T.; Larson, S.; Davy, J.; Larsen, R.; Barry, S.; Marquis, D.; Striby, K. (2008). Loamy Uplands (Santa Lucia, Lockwood, Sheridan, Arbuckle) Ecological Site Description (R015XI022CA). Ecological Site Information System. USDA Natural Resources Conservation Service.
  • Larsen, R.; Althouse, L.; Meade, D.; Battany, M. (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
  • Thompson, L.; Voss, J.; Larsen, R.; Tietje, W.; Cooper, R.; Moyle, P. (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
  • George, M.; Larsen, R.; Doran, M.; Striby, K. (2008). Shallow Fine Loamy Ecological Site Description (R015XI006CA). Ecological Site Information System. USDA Natural Resources Conservation Service.
  • George, M.; Larsen, R.; Striby, K.; Oster, K.; Larson, S.; Barry, S. (2008). Silt Loam (Gazos) Ecological Site Description (R015XI023CA). Ecological Site Information System. USDA Natural Resources Conservation Service.
  • George, M.; Jensen, W.; Larsen, R.; Striby, K. (2007). Coastal Fine Loamy Ecological Site Description (R015XI004CA). Ecological Site Information System. USDA Natural Resources Conservation Service.
  • George, M.; Larsen, R.; Striby, K. (2007). Fine Loamy Ecological Site Description (R015XI003CA). Ecological Site Information System. USDA Natural Resources Conservation Service.
  • George, M.; Harper, J.; Larson, S.; Larsen, R.; McDougald, N.; Lewis, D. (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.; Hayes, G.; Larsen, R.; Nader, G.; Doran, M. (2005). Understanding Livestock Grazing Impacts. UC ANR. Publication 21626
  • Barry, S.; Guenther, K.; Hayes, G.; Larsen, R.; Nader, G.; Doran, M. (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.
  • Larsen, R.; Lewis, D.; Valachovic, Y. (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.; McDougald, N.; Tate, K.; Gerlach, J.; Fulgham, K. (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.; McDougald, N.; Tate, K.; Gerlach, J.; Fulgham, K. (2002). "Influence of Grazing on Channel Morphology of Intermittent Streams." Journal of Range Management 55(6): 551-557.
  • George, M.; McDougald, N.; Tate, K.; Larsen, R. (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.; George, M.; McDougald, N.; Larsen, R. (2000). "Cryptosporidium parvum Transport from Cattle Fecal Deposits on California Rangelands." Journal of Range Management 53(3): 295-229.
  • Larsen, R.; Krueger, W.; Barrington, M.; Buckhouse, J.; George, M.; Johnson, D. (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.; Barrington, M.; Buckhouse, J.; George, M.; Johnson, D. (1997). Livestock Influences on Riparian Zones and Fishery Habitat: A Bibliography. Oregon State University Extension Service. Corvallis, OR, EM 8660
  • Larsen, R.; George, M.; McDougald, N.; Tate, K.; Fulgham, K. (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.; Buckhouse, J.; Moore, J. (1994). "Water-Quality Benefits of Having Cattle Manure Deposited Away from Streams." Bioresource Technology 48: 113-118.
  • Larsen, R.; Buckhouse, J.; Moore, J.; Miner, J. (1988). Rangeland Cattle and Manure Placement: A Link to Water Quality. Oregon Academy of Science Proceedings. 24: 7-15.

California Agriculture Article Contributions

ANR Workgroup Associations

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