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ARS Home » People & Locations » Steven Seefeldt (Steve)
Steven S Seefeldt (Steve) (PhD)
Location not available
Research Agronomist

Phone: (907) 474-1898
Fax: (907) 474-1813

355 O`NEILL BLDG.
905 KOYUKUK - UAF CAMPUS
FAIRBANKS, AK 997757200

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Publications (Clicking on the reprint icon Reprint Icon will take you to the publication reprint.)
Estimation of dose-response models for discrete and continuous data in weed science - (Peer Reviewed Journal)
Sheep bedding in the Centennial Mountains of Montana and Idaho: effects on vegetation - (Peer Reviewed Journal)
Seefeldt, S.S., Leytem, A.B. 2011. Sheep bedding in the Centennial Mountains of Montana and Idaho: effects on vegetation. Western North American Naturalist. 71(3):361-373.
Control of Orange Hawkweed (Hieracium aurantiacum) in Southern Alaska - (Peer Reviewed Journal)
Seefeldt, S.S., Conn, J.S. 2011. Control of Orange Hawkweed (Hieracium aurantiacum) in Southern Alaska. Journal of Invasive Plant Science and Management. 4(1):87-94.
Integrated weed management systems identified for jointed goatgrass (Aegilops cylindrica) in the Pacific Northwest - (Peer Reviewed Journal)
Young, F.L., Ball, D.A., Thill, D.C., Alldredge, J.R., Ogg Jr, A.G., Seefeldt, S.S. 2010. Integrated weed management systems identified for jointed goatgrass (Aegilops cylindrica) in the Pacific Northwest. Weed Technology. 24:430–439. DOI: 10.1614/WT-D-10-00046.1.
Moose as a vector for non-indigenous plant species in Alaska - (Abstract Only)
Hawkweed Control in Alaska - (Abstract Only)
Development of a soil bioassay for triclopyr residues and comparison with a laboratory extraction - (Peer Reviewed Journal)
Ranft, R., Seefeldt, S.S., Zhang, M., Barnes, D. 2010. Development of a soil bioassay for triclopyr residues and comparison with a laboratory extraction. Weed Technology. 24(4):538-543.
Dose-Response: Background and Perspectives on the Development of Analysis Methodology - (Abstract Only)
Moose as a vector for non-indigenous plant species in Alaska - (Proceedings)
Seefeldt, S.S., Collins, W.B., Kuhl, J.C., Clauss, M. 2010. Moose as a vector for non-indigenous plant species in Alaska [abstract]. Emerging Landscapes: Providing for the Future. Paper No. O-322.
White Sweetclover (Melilotus albus) and Narrowleaf Hawksbeard (Crepis tectorum) Seed Germination after Passing Through Moose - (Peer Reviewed Journal)
Seefeldt, S.S., Collins, W.B., Kuhl, J.C., Clauss, M. 2010. White Sweetclover (Melilotus albus) and Narrowleaf Hawksbeard (Crepis tectorum) Seed Germination after Passing Through Moose. Journal of Invasive Plant Science and Management. 3:26-31.
Controlling white sweetclover with herbicides and non-chemical methods - (Abstract Only)
Spotted knapweed, Centaurea stoebe, control options - (Abstract Only)
Vegetation changes in Conservation Reserve Program Lands in Interior Alaska - (Peer Reviewed Journal)
Seefeldt, S.S., Conn, J.S., Zhang, M., Kaspari, P. 2009. Vegetation changes in Conservation Reserve Program Lands in Interior Alaska. Agriculture, Ecosystems and Environment. Available online at http://dx.doi.org/10.1016/agee,2009.09.001.
Relative suitability of indices derived from Landsat ETM+ and SPOT 5 for detecting fire severity in sagebrush steppe - (Peer Reviewed Journal)
Norton, J., Glenn, N., Germino, M., Weber, K., Seefeldt, S.S. 2009. Relative suitability of indices derived from Landsat ETM+ and SPOT 5 for detecting fire severity in sagebrush steppe. International Journal of Applied Earth Observation and Geoinformation. 11:360-367.
Invasive White Sweetclover (Melilotus officinalis) Control With Herbicides, Cutting and Flaming - (Peer Reviewed Journal)
Conn, J.S., Seefeldt, S.S. 2009. Invasive White Sweetclover (Melilotus officinalis) Control With Herbicides, Cutting and Flaming. Journal of Invasive Plant Science and Management. 2:270-277.
Assessment of Grazing Effect on Sheep Fescue (Festuca valesiaca)Dominated Steppe Rangelands in the semi-arid Central Anatolian Region of Turkey - (Peer Reviewed Journal)
Firincioglu, H.K., Seefeldt, S.S., Sahin, B., Vural, M. 2009. Assessment of Grazing Effect on Sheep Fescue (Festuca valesiaca)Dominated Steppe Rangelands in the semi-arid Central Anatolian Region of Turkey. Journal of Arid Environments. 73:1149-1157.
Delaying sheep grazing after wildfire in sagebrush steppe may not affect vegetation recovery - (Peer Reviewed Journal)
Roselle, L., Seefeldt, S.S., Launchbaugh, K. 2010. Delaying sheep grazing after wildfire in sagebrush steppe may not affect vegetation recovery. International Journal of Wildland Fire. 19(1):115-122.
Fire Severity Model Accuracy Using Short-term, Rapid Assessment versus Long-term, Anniversary Date Assessment - (Peer Reviewed Journal)
Weber, K.T., Seefeldt, S.S., Moffet, C.A. 2009. Fire Severity Model Accuracy Using Short-term, Rapid Assessment versus Long-term, Anniversary Date Assessment. GIScience and Remote Sensing. 46(1):24-38.
Persistence of triclopyr in Alaska subarctic environments - (Abstract Only)
Seefeldt, S.S., Barnes, D.L., Ranft, R., Rhodes, W.J., Schnabel, W.E. 2009. Persistence of triclopyr in Alaska subarctic environments [abstract]. Weed Science Society of America Meeting Abstracts. Paper no. 517.
Invasive plant management in Alaska with examples showing the use of new mowing equipment and orange hawkweed - (Abstract Only)
Comparing fire severity models from post-fire and pre/post-fire differenced imagery - (Peer Reviewed Journal)
Weber, K.T., Seefeldt, S.S., Moffet, C.A., Norton, J. 2009. Comparing fire severity models from post-fire and pre/post-fire differenced imagery. GIScience and Remote Sensing. 45(4):1-14.
Pilot Study for an Assessment of Vegetation Structure for Steppe Rangelands of Central Anatolia - (Peer Reviewed Journal)
Firincioglu, H.K., Sahin, B., Seefeldt, S.S., Mert, F., Hakyemez, H., Vural, M. 2008. Pilot Study for an Assessment of Vegetation Structure for Steppe Rangelands of Central Anatolia. Turkish Journal of Agriculture and Forestry. 32(5):401-414.
Impact of sheep bedding on soil nutrient dynamics in the Centennial Mountains of Montana and Idaho - (Peer Reviewed Journal)
Leytem, A.B., Seefeldt, S.S. 2008. Impact of sheep bedding on soil nutrient dynamics in the Centennial Mountains of Montana and Idaho. Soil Science. 173(8):503-510.
Comparison of broadcast and wet-blade applications of 2,4-D and triclopyr for control of woody species and off target impacts on Conservation Reserve Program lands in Alaska - (Abstract Only)
Fire severity modeling of sagebrush-steppe rangelands in Southeastern Idaho - (Peer Reviewed Journal)
Weber, K.W., Seefeldt, S.S., Norton, J.M., Finley, C. 2008. Fire severity modeling of sagebrush-steppe rangelands in Southeastern Idaho. GIScience and Remote Sensing. 45(1):68-82.
RESPONSE OF SEEDLING BIRD VETCH (VICCIA CRACCA) TO SIX HERBICIDES - (Peer Reviewed Journal)
Seefeldt, S.S., Conn, J.S., Jackson, B.E., Sparrow, S.D. 2007. Response of seedling bird vetch (Viccia cracca) to six herbicides. Weed Technology. 21(3):692-694.
Control of Bird Vetch in Alaska - (Proceedings)
Seefeldt, S.S., Conn, J.S., Jackson, B., Sparrow, S. 2007. Control of Bird Vetch in Alaska. Western Society of Weed Science Meeting Proceedings.
REDUCING LEAFY SPURGE (EUPHORBIA ESULA) WITH A COMBINATION OF SHEEP GRAZING AND IMAZAPIC - (Peer Reviewed Journal)
Seefeldt, S.S., Taylor, J.B., Van Vleet, S.A. 2007. Reducing leafy spurge (euphorbia esula) with a combination of sheep grazing and imazapic. Journal of Arid Environments. 69:432-440.
MANIPULATION OF SHEEP GRAZING CAN BE USED TO PREDICTABLY ALTER VEGETATION IN THE SAGEBRUSH STEPPE - (Proceedings)
Seefeldt, S.S. 2007. Manipulation of sheep grazing can be used to predictably alter vegetation in the sagebrush steppe. Society for Range Management Meeting Proceedings(CD).
Prescribed fires in Artemisia tridentata ssp. vaseyana steppe have minor and transient effects on vegetation cover and composition - (Peer Reviewed Journal)
Seefeldt, S.S., Germino, M., Dicristina, K. 2007. Prescribed fires in Artemisia tridentata ssp. vaseyana steppe have minor and transient effects on vegetation cover and composition. Applied Vegetation Science. 10:249-256.
THE EFFECTS OF LONG-TERM EXCLOSURES ON RANGE PLANTS IN THE CENTRAL ANATOLIAN REGION OF TURKEY. - (Peer Reviewed Journal)
Firincioglu, H.K., Seefeldt, S.S., Sahin, B. 2007. The effects of long-term exclosures on range plants in the central Anatolian region of Turkey. Environmental Management. 39(3):326-337.
SPECTRA CHARACTERISTICS OF WATER EXTRACTABLE ORGANIC MATTER FROM SOILS OF DIFFERENT LAND USES IN A SUBARCTIC ALASKA ENVIRONMENT - (Abstract Only)
MEASURING PLANT COVER IN SAGEBRUSH STEPPE: A COMPARISON OF METHODS - (Peer Reviewed Journal)
Seefeldt, S.S., Booth, D.T. 2006. Measuring plant cover in sagebrush steppe rangelands: A comparison of methods. Environmental Management. 37:703-711.
USING SHEEP TO REDUCE EXOTIC WEEDS IN EASTERN IDAHO: THEIR POTENTIAL AS BIOCONTROL AGENTS - (Abstract Only)
Seefeldt, S.S. 2006. Using sheep to reduce exotic weeds in eastern Idaho: their potential as biocontrol agents. Western Society of Weed Science Meeting Proceedings.
Monitoring for Success - (Book / Chapter)
Sharrow, S.H., Seefeldt, S.S. 2006. Monitoring for Success. In: Daines, R., Launchbaugh, K., Walker, J., editors. Targeted Grazing: a natural approach to vegetation management and landscape enhancement. Centennial, CO. Cottrell Printing. p. 40-49.
THE USE OF REMOTE SENSING IMAGERY TO DETERMINE WILDLAND BURN SEVERITY IN SEMIARID SAGEBRUSH-STEPPE RANGELANDS - (Abstract Only)
Norton, J., Glenn, N., Weber, K., Seefeldt, S.S., Taylor, J.B. 2006. The use of remote sensing imagery to determine wildland burn severity in semiarid sagebrush-steppe rangelands. Society of Range Management.
THE UNITED STATES SHEEP EXPERIMENT STATION: SHEDDING LIGHT ON RANGELAND ECOSYSTEMS AND THEIR MANAGEMENT. - (Popular Publication)
Seefeldt, S. S., Laycock, W. 2006. The United States Sheep Experiment Station: Shedding light on rangeland ecosystems. Rangelands. 28:30-35
CONSEQUENCES OF SELECTING RAMBOUILLET EWES FOR MOUNTAIN BIG SAGEBRUSH (ARTEMISIA TRIDENTATA SSP. VASEYANA) DIETARY PREFERENCE - (Peer Reviewed Journal)
Seefeldt, S.S. 2005. Consequences of selecting Rambouillet ewes for mountain big sagebrush (Artemisia Tridentata SSP. Vaseyaba)dietary preference. Rangeland Ecology and Management. 58:380-384.
THE USE OF SHORT-DURATION INTENSIVE SHEEP GRAZING TO INCREASE SHEEP UTILIZATION OF LEAFY SPURGE (EUPHORBIA ESULA L.) - (Peer Reviewed Journal)
Taylor, J.B., Seefeldt, S.S., Thelen, T.M. 2005. The use of short-duration intensive sheep grazing to increase sheep utilization of leafy spurge (Euphorbia esula L.). Journal of Food, Agriculture and Environment. 3(2):323-326.
HISTORICAL DEVELOPMENT OF DOSE-RESPONSE RELATIONSHIPS - (Proceedings)
Seefeldt, S.S. 2005. Historical development of dose-response relationships. In: Proceedings of the Western Society of Weed Science. 58th Annual Western Society of Weed Science Meeting. March 8-10, 2005, Vancouver, Canada. CDROM.
THE CONTROL OF LEAFY SPURGE (EUPHORBIA ESULA L.) USING STRATEGIC SHEEP GRAZING AND IMAZAPIC - (Proceedings)
Van Vleet, S.M., Seefeldt, S.S. 2005. The control of leafy spurge (Euphorbia esul L.)using strategic sheep grazing and imazapic. In: Proceedings of the Western Society of Weed Science. 58th Annual Western Society of Weed Science Meeting. March 8-10, 2005, Vancouver, Canada. CDROM.
EFFECTS OF GRAZING AFTER FIRE IN SAGEBRUSH STEPPE COMMUNITIES - (Abstract Only)
Roselle, L.M., Launchbaugh, K.L., Seefeldt, S.S. 2005. Effects of grazing after fire in sagebrush steppe communities. In: Society for Range Management Proceedings. 58th Annual Society for Range Management Meeting, February 5-11, 2005, Fort Worth, Texas. 2005 CDROM.
QUANTIFYING THE IMPACT OF A WEED IN A PERENNIAL RYEGRASS (LOLIUM PERENNE) WHITE CLOVER (TRIFOLIUM REPENS) PASTURE - (Peer Reviewed Journal)
Seefeldt, S.S., Stephens, J.M.C., Verkaaik, M.L., Rahman, A. 2005. Quantifying the impact of a weed in a perennial ryegrass-white clover pasture. Weed Science. 53:113-120.
SOIL MOISTURE PATTERNS AND RELATED CHANGES IN VEGETATION FOLLOWING FIRE IN SAGE-STEPPE - (Proceedings)
Gerimino, M.J., Seefeldt, S.S., DiCristina, K., Baum, R. 2004. Soil moisture patterns and related changes in vegetation following fire in sage-steppe. In: Proceedings of the Society of Range Management. 57th Annual Meeting, January 24-30, 2004, Salt Lake City, Utah. 2004 CDROM. 2004. Effects of soil moisture and surrounding vegetation on sagebrush seedling establishment following fires. In: Proceedings of the Society of Range Management. 57th Annual Meeting, January 24-30, 2004, Salt Lake City, Utah. 2004 CDROM.
ECOLOGICAL SYNDROMES OF INVASION IN SEMIARID RANGELANDS AND THEIR IMPLICATIONS FOR LAND MANAGEMENT AND RESTORATION - (Proceedings)
Germino, M.J., Seefeldt, S.S., Hill, J., Weber, K.T. 2004. Ecological syndromes of invasion in Semiarid rangelands and their implications for land management and restoration. In: Proceedings of the Society for Ecological Restoration. 16th International Conference for Ecological Restoration, August 24-26, 2004, Victoria, Canada. 2004 CDROM.
GUIDE TO HELP PRODUCERS MANAGE WEED RESISTANCE - (Abstract Only)
Anderson, R.L., Thill, D., Rauch, T., Hanson, B., Ball, D., Ensminger, M., Howalt, K., Seefeldt, S.S., Corp, M., Harbour, J. 2004. Guide to help producers manage weed resistance. Western Society of Weed Science Annual Meeting, March 8-11, 2004, Colorado Springs, CO. 56:89.
EFFECTS OF SOIL MOISTURE AND SURROUNDING VEGETATION ON SAGEBRUSH SEEDLING ESTABLISHMENT FOLLOWING FIRES - (Proceedings)
DiCristina, K., Gerimino, M.J., Seefeldt, S.S. 2004. Effects of soil moisture and surrounding vegetation on sagebrush seedling establishment following fires. In: Proceedings of the Society of Range Management. 57th Annual Meeting, January 24-30, 2004, Salt Lake City, Utah. 2004 CDROM.
EFFECT OF RESTRICTED ACCESS HIGH DENSITY SHEEP GRAZING REGIMEN ON LEAFY SPURGE - (Abstract Only)
Taylor, J.B., Seefeldt, S.S. Effect of restricted access high density sheep grazing regimen on leafy spurge. Western Regional Coordinating Committee #39 Annual Reports. 2003. 2003:29.
MEASURING PLANT DIVERSITY IN THE TALL THREETIP SAGEBRUSH STEPPE: INFLUENCE OF PREVIOUS GRAZING MANAGEMENT PRACTICES - (Peer Reviewed Journal)
SEEFELDT, S.S., MCCOY, S.D. MEASURING PLANT DIVERSITY IN THE TALL THREETIP SAGEBRUSH STEPPE: INFLUENCE OF PREVIOUS GRAZING MANAGEMENT PRACTICES. ENVIRONMENTAL MANAGEMENT. 2003. 32:234-245.
CONSEQUENCES OF TWO YEARS OF SHEEP GRAZING ON SPOTTED KNAPWEED (CENTAURA MACULOSA) INFESTED PASTURES IN THE SAGEBRUSH STEPPE - (Abstract Only)
Weed Science Society of America Abstracts. 2002. v. 42. Abstract p. 10.
CONSEQUENCES OF TWO YEARS OF SHEEP GRAZING ON SPOTTED KNAPWEED (CENTAUREA MACULOSA) INFESTED PASTURES IN THE SAGEBRUSH STEPPE - (Abstract Only)
Seefeldt, S.S., Hale, M., Patten, D.,Launchbaugh,K., Hendrickson, J.R. Consequences of two years of sheep grazing on spotted knapweed (Centaurea maculosa) infested pastures in the sagebrush steppe. Weed Science Society of America. 2002. v. 42. Abstract p. 10.
PLANTING GEOMETRY OF WINTER WHEAT (TRITICUM AESTIVUM) CAN REDUCE JOINTED GOATGRASS (AEGILOPS CYLINDRICA)SPIKELET PRODUCTION - (Peer Reviewed Journal)
CHARACTERIZING TRAITS WHICH ENHANCE THE COMPETITIVENESS OF WINTER WHEATS (TRITICUM AESTIVUM) AGAINST JOINTED GOATGRASS (AEGILOPS CYLINDRICA) - (Peer Reviewed Journal)
PRODUCTION OF HERBICIDE-RESISTANT JOINTED GOATGRASS (AEGILOPS CYLINDRICA)X WHEAT (TRITICUM AESTIVUM) HYBRIDS IN THE FIELD BY NATURAL HYBRIDIZATION - (Peer Reviewed Journal)
DICLOFOP-RESISTANT AVENA FATUA FROM THE WILLAMETTE VALLEY OF OREGON - (Peer Reviewed Journal)
MECHANISMS OF RESISTANCE TO DICLOFOP OF TWO WILD OAT (AVENA FATUA) BIOTYPESFROM THE WILLAMETTE VALLEY OF OREGON - (Peer Reviewed Journal)