tamzen stringham

Tamzen Stringham



I’m a rangeland and riparian ecologist. I’ve worked, studied, performed research, and played in the cold desert ecosystems of the western United States and the temperate rangelands of the Pacific Northwest and Canada since 1984. The Great Basin is a place exemplified by extremes in elevation, climate, soils, and vegetation with long distances between gas stations and towns. Like the landscape, the people are hardy and interesting and have deep history of caring for the land. I am fascinated by the magnitude and diversity of this desert ecosystem and the challenges faced by both private and public land managers. I want to understand the ecology of this amazing place well enough to assist land managers by providing useful, science-based knowledge and tools for adaptive management.

  • Developing state and transition models for upland and riparian systems
  • Quantifying water availability and vegetation change in response to land management actions
  • Understanding and improving sustainable grazing management
  • Developing tools and conducting applied research for land managers


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


Publications are listed below.


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.


Evaluating mountain meadow groundwater response to Pinyon-Juniper and temperature in a great basin watershed.


Ecohydrology, 1-18

Carroll, R. W.H., Huntington, J. L., Snyder, K. A., Niswonger, R. G., Morton, C., Stringham, T.

Extracting Plant Phenology Metrics in a Great Basin Watershed: Methods and Consierations for Quantifying Phenophases in a Cold Desert.


Sensors, 1-20.

Snyder, K. A., Wehan, B. L., Filippa, G., Huntington, J. L., Stringham, T., Snyder, D. K.

Ecological Site Descriptions: Considerations for Riparian Systems.


Rangelands, 32(6), 6.

Stringham, T., Repp, J. P.

A process-based application of state-and-transition models: A case study of Western juniper (Juniperus occidentalis) encroachment..


Rangeland Ecology and Management, 62, 186-193.

Petersen, S. L., Stringham, T.

Intercanopy community structure across a heterogeneous landscape in a western juniper encroached ecosystem.


Journal of Vegetation Science, 20, 1163-1175.

Petersen, S. L., Stringham, T.

Lay or Popular Publications

Evaluation of the Winnemucca District Drought Response Plan


The Progressive Rancher

Perryman, B. L., Stringham, T., Schultz, B. W.

Professional Papers

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.


Experiment Station, University of Nevada, Reno, RR-2017-02

Stringham, T. K. and D. K. Snyder

USDA Ecological Site Description State-and-Transition Models Major Land Resource Area 24


Experiment Station, University of Nevada, Reno, RR-2017-03

T.K. Stringham, P. Novak-Echenique, A. Wartgow, D. Snyder

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).


Nevada Agricultural Experiment Station, University of Nevada, Reno, RR-2015-01.

Stringham, T., Novak-Echenique, P., Blackburn, P., Coombs, C., Snyder, D., Wartgow, A.

State-and-transition models for Major Land Resource Area 24, Nevada: Final Report



Stringham, T.