Tamzen Stringham


Photo of Tamzen Stringham

Professor - Department Chair

Interim Departmental Chair
Department of Agriculture, Veterinary & Rangeland Sciences
University of Nevada/Mail Stop 202
1664 N. Virginia Street
Reno,  Nevada   89557

Office: (775) 784-6755
Fax: 784-1375

Email: tstringham@cabnr.unr.edu
Building: Max Fleischmann Agriculture,  Office 102b
Personal Web: https://naes.unr.edu/rangeland_ecology/

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EDUCATION
B.S. California State University, Chico 1981
M.S. Oregon State University, 1984
Ph.D. Oregon State University, 1996

ACADEMIC & RESEARCH INTEREST

Current research projects include:

  1. Revegetation of constructed meadow channels using sedge plugs
  2. Riparian capability as defined by environmental and physical attributes of forested streams
  3. Use of western juniper as a barrier to wildlife herbivory of young willow plants
  4. Winterfat ecology and restoration of degraded winterfat sites
  5. Livestock performance relative to winter grazing of winterfat range
  6. State-and-transition modeling of one-seed juniper encroached rangelands in New Mexico
  7. Winter grazing, sage grouse habitat and insect populations

NV State-and-Transition Model Reports

REPRESENTATIVE PUBLICATIONS

Abstracts
Expediting state-and-transition models through sorting of ecological sites into disturbance response groups. Stringham, T., Novak-Echenique, P., Freese, E., Wiseley, L., Shaver, P. 2011, N/A
Journals
Comparison of Landsat and Land-Based Phenology Camera Normalized Difference Vegetation Index (NDVI) for Dominant Plant Communities in the Great Basin Snyder, K. A., Huntington, J., Wehan, B., Morton, C., Stringham, T. 2019, Sensors 2019, 19(5)
Rainfall Interception by Singleleaf PiƱon and Utah Juniper: Implications for Stand-Level Effective Precipitation Stringham, T., Snyder, K. A., Snyder, D. K., Lossing, S. S., Carr, C. A., Stringham, B. J. 2018, Rangeland Ecology & Management
(2017). Slash Application Reduces Soil Erosion in Steep-Sloped Pinon-Juniper Woodlands. Rangeland Ecology and Management, 70, 774-780. Noelle, S. M., Carr, C. A., Stringham, T. K., Weltz, M. A. 2017, Rangeland Ecology & Management 70(6):774-780.
Evaluating mountain meadow groundwater response to Pinyon-Juniper and temperature in a great basin watershed. Carroll, R. W.H., Huntington, J. L., Snyder, K. A., Niswonger, R. G., Morton, C., Stringham, T. 2016, Ecohydrology, 1-18
Extracting Plant Phenology Metrics in a Great Basin Watershed: Methods and Consierations for Quantifying Phenophases in a Cold Desert. Snyder, K. A., Wehan, B. L., Filippa, G., Huntington, J. L., Stringham, T., Snyder, D. K. 2016, Sensors, 1-20.
Disturbance Response Grouping of Ecological Sites Increases Utility of Ecological Sites and State-and-Transition Models for Landscape Scale Planning in the Great Basin. Stringham, T., Novak-Echenique, P., Snyder, D. K., Peterson, S., Snyder, K. A. 2016, Rangelands, 38(6), 371-378.
Soil water dynamics and transpiration rates of Western juniper in central Oregon. Mollnau, C., Newton, M., Stringham, T. 2014, J. of Arid Environments, 102, 117-126.
Grazing for Fuels Management and Sage Grouse Habitat Maintenance and Recovery

More than half the total acres (381,727 acres) burned in Nevada during 2012 occurred in sage grouse (Centrocercus urophasianus) Preliminiary Priority Habitat (M. Boomer,) personal Communication, 2013), an alarming fact for a candidate threatened or endangered species.  Preliminary Priority Habitat is defined by the Bureau of Land Management (BLM) as having the highest conservation value to maintaining habitat, brood-rearing, winter range, and important movement corridors.  Burning sagebrush (Artemisia sp.) communities does not generally benefit sage grouse due to the reduction or elimination of sagebrush cover, which can take decades to more than a century to recover.  Fires can be particularly detrimental to thequality of sage grouse habitat when invasive annual grasses are present prior to the fire and respond well or expand after fire.  Furthermore, it has been suggested that larege, frequent fires, like those occuring on Squaw Valley Ranch, may lead to the extinction of sage gruse.  With the continual threat of large fires is sage grouse habitat, it is imperative that cost-effective tools, such as properly managed cattle grazing, are available and utilized to reduce fire frequency, severity, continuity, and size.


Freese, E. A., T.K. Stringham, G. Simonds, E. Sant. 2013, Rangelands 35 (4):13-17.
Catastrophic Thresholds: A Synthesis of Concepts, Perspectives and Applications. David D. Briske, Robert A. Washington-Allen, Craig R. Johnson, Jeffrey A. Lockwood, Dale R. Lockwood , Tamzen K. Stringham, Herman H. Shugart, 2010, Ecology and Society, 15(3), 10.
Ecological Site Descriptions: Considerations for Riparian Systems. Stringham, T., Repp, J. P. 2010, Rangelands, 32(6), 6.
A process-based application of state-and-transition models: A case study of Western juniper (Juniperus occidentalis) encroachment.. Petersen, S. L., Stringham, T. 2009, Rangeland Ecology and Management, 62, 186-193.
Intercanopy community structure across a heterogeneous landscape in a western juniper encroached ecosystem. Petersen, S. L., Stringham, T. 2009, Journal of Vegetation Science, 20, 1163-1175.
Lay or Popular Publications
Evaluation of the Winnemucca District Drought Response Plan Perryman, B. L., Stringham, T., Schultz, B. W. 2015, The Progressive Rancher
Research Reports
Ecological potential of sagebrush dominated rangeland: Nevada and NE California. A case study utilizing BLM Nevada AIM and NRCS Nevada NRI Monitoring Data Major Land Resource Area 25 Nevada. University of Nevada Reno, Nevada Agricultural Experiment Station Research Report 2017-02. P.55. http://www.cabnr.unr.edu/resources/MLRA.aspx Stringham, T. K. and D. K. Snyder 2017, http://www.cabnr.unr.edu/resources/MLRA.aspx
Final Report for USDA Ecological Site Description State-and-Transition Models, Major Land Resource Area 28A and 28B Nevada. (01st ed., vol. 2015, pp. 1524). Stringham, T., Novak-Echenique, P., Blackburn, P., Coombs, C., Snyder, D., Wartgow, A. 2015, Reno, Nevada: Nevada Agricultural Experiment Station Research Report 2015-01.
Final Report for USDA Ecological Site Description State-and-Transition Models by Disturbance Response Groups, Major Land Resource Area 25 Nevada. (01st ed., vol. 2015, pp. 530). Stringham, T., Novak-Echenique, P., Blackburn, P., Snyder, D., Wartgow, A. 2015, Reno, Nevada: Nevada Agricultural Experiment Station Research Report 2015-02.
State-and-transition models for Major Land Resource Area 24, Nevada: Final Report Stringham, T. 2011, USDA, NRCS