HR job title
- Retired Senior Professor
- Contact Info
- 1 979 845 5575
Kothmann, Merwyn Professor and Associate Department Head
Positions
- Professor and Associate Department Head, Ecology and Conservation Biology, College of Agriculture and Life Sciences
Dr. Kothmann's research is focused on developing models for ranchers to utilize in planning, monitoring and evaluating grazing management. He is also exploring the use of Bayesian belief networks as probabilistic expert systems for decision analysis in natural resources management.
- Overview
- Publications
- Research
- Teaching
- Works By Students
- Background
- Contact
- Other
- View All
Overview
Publications
selected publications
-
academic article
-
Fowler, D. A., Bakenhus, C., Kothmann, M. M., Macik, M. L., Poling, N., & MacWillie, S.
(2016).
Redesigning Natural Resources Curricula: A Redesign Process Model at Texas A&M University. Journal of Natural Resources and Life Sciences Education: an international journal.
45(1), 1-10.
-
Naumann, H. D., Hagerman, A. E., Lambert, B. D., Muir, J. P., Tedeschi, L. O., & Kothmann, M. M.
(2014).
Molecular weight and protein-precipitating ability of condensed tannins from warm-season perennial legumes. Journal of Plant Interactions.
9(1), 212-219.
-
Naumann, H. D., Armstrong, S. A., Lambert, B. D., Muir, J. P., Tedeschi, L. O., & Kothmann, M. M.
(2014).
Effect of molecular weight and concentration of legume condensed tannins on in vitro larval migration inhibition of Haemonchus contortus. Veterinary Parasitology.
199(1-2), 93-98.
-
Naumann, H. D., Tedeschi, L. O., Muir, J. P., Lambert, B. D., & Kothmann, M. M.
(2013).
Effect of molecular weight of condensed tannins from warm-season perennial legumes on ruminal methane production in vitro. Biochemical Systematics and Ecology.
50, 154-162.
-
Allen, V. G., Batello, C., Berretta, E. J., Hodgson, J., Kothmann, M., Li, X., ... Committee, T.
(2011).
An international terminology for grazing lands and grazing animals. Grass and Forage Science.
66(1), 2-28.
-
Kothmann, M.
(2009).
Grazing Methods: A Viewpoint. Rangelands.
31(5), 5-10.
-
Brown, J., & Kothmann, M.
(2009).
Rotational Grazing and the Profession and Practice of Rangeland Management. Rangelands.
31(5), 3-4.
-
Brown, J., & Kothmann, M.
(2009).
Rotational Grazing on Rangelands: Synthesis and Recommendations. Rangelands.
31(5), 37-38.
-
Kothmann, M., Teague, R., Daz-Sols, H., & Grant, W.
(2009).
Viewpoint: New Approaches and Protocols for Grazing Management Research. Rangelands.
31(5), 31-36.
-
Diaz-Solis, H., Grant, W. E., Kothmann, M. M., Teague, W. R., & Diaz-Garcia, J. A.
(2009).
Adaptive management of stocking rates to reduce effects of drought on cow-calf production systems in semi-arid rangelands. Agricultural Systems.
100(1-3), 43-50.
-
Teague, W. R., Kreuter, U. P., Grant, W. E., Diaz-Solis, H., & Kothmann, M. M.
(2009).
Economic implications of maintaining rangeland ecosystem health in a semi-arid savanna. Ecological Economics.
68(5), 1417-1429.
-
Teague, W. R., Grant, W. E., Kreuter, U. P., Diaz-Solis, H., Dube, S., Kothmann, M. M., Pinchak, W. E., & Ansley, R. J.
(2008).
An ecological economic simulation model for assessing fire and grazing management effects on mesquite rangelands in Texas. Ecological Economics.
64(3), 611-624.
-
Thurow, T. L., Kothmann, M. M., Tanaka, J. A., & Dobrowolski, J. P.
(2007).
Which Direction Is Forward: Perspectives on Rangeland Science Curricula. Rangelands.
29(6), 40-51.
-
Thurow, T. L., Kothmann, M. M., Tanaka, J. A., & Dobrowolski, J. P.
(2007).
Which Direction Is Forward: Perspectives on Rangeland Science Curricula. Rangelands.
29(6), 40-51.
-
Diaz-Solis, H., Kothmann, M. M., Grant, W. E., & De Luna-Villarreal, R.
(2006).
Application of a simple ecological sustainability simulator (SESS) as a management tool in the semi-arid rangelands of northeastern Mexico. Agricultural Systems.
88(2-3), 514-527.
-
Diaz-Solis, H., Kothmann, M. M., Grant, W. E., & De Luna-Villarreal, R.
(2006).
Use of irrigated pastures in semi-arid grazinglands: A dynamic model for stocking rate decisions. Agricultural Systems.
88(2-3), 316-331.
-
Kreuter, U. P., Amestoy, H. E., Kothmann, M. M., Ueckert, D. N., McGinty, W. A., & Cummings, S. R.
(2005).
The Use of Brush Management Methods: A Texas Landowner Survey. Rangeland Ecology and Management.
58(3), 284-291.
-
Kreuter, U. P., Amestoy, H. E., Kothmann, M. M., Ueckert, D. N., McGinty, W. A., & Cummings, S. R.
(2005).
The use of brush management methods: A Texas landowner survey. Rangeland Ecology and Management.
58(3), 284-291.
-
Kothmann, M.
(2005).
SRM 2004 in Review. Rangelands.
27(2), 2-4.
-
Kothmann, M.
(2005).
Exciting Changes in SRM Publications. Rangelands.
27(1), 2-2.
-
Kreuter, U. P., Amestoy, H. E., & Kothmann, M. M.
(2005).
The Use of Brush Management Methods: A Texas Landowner Survey. JOURNAL OF RANGE MANAGEMENT.
58(3),
-
Diaz-Solis, H., Kothmann, M. M., Hamilton, W. T., & Grant, W. E.
(2003).
A simple ecological sustainability simulator (SESS) for stocking rate management on semi-arid grazinglands. Agricultural Systems.
76(2), 655-680.
-
Pittroff, W., & Kothmann, M. M.
(2001).
Quantitative prediction of feed intake in ruminants I. Conceptual and mathematical analysis of models for sheep. Livestock Science.
71(2-3), 131-150.
-
Pittroff, W., & Kothmann, M. M.
(2001).
Quantitative prediction of feed intake in ruminants II. Conceptual and mathematical analysis of models for cattle. Livestock Science.
71(2-3), 151-169.
-
Pittroff, W., & Kothmann, M. M.
(2001).
Quantitative prediction of feed intake in ruminants III. Comparative example calculations and discussion. Livestock Science.
71(2-3), 171-181.
-
Riddle, R. R., Taylor, C. A., Huston, J. E., & Kothmann, M. M.
(1999).
Intake of ashe juniper and live oak by angora goats. JOURNAL OF RANGE MANAGEMENT.
52(2), 161-165.
-
Iglesias, R., & Kothmann, M. M.
(1998).
Evaluating expert knowledge: Plant species responses to cattle grazing and fire. JOURNAL OF RANGE MANAGEMENT.
51(3), 332-344.
-
Iglesias, R., & Kothmann, M. M.
(1998).
Best linear unbiased prediction of herbivore preferences. JOURNAL OF RANGE MANAGEMENT.
51(1), 19-28.
-
Iglesias, R., & Kothmann, M. M.
(1997).
Structure and causes of vegetation change in state and transition model applications. JOURNAL OF RANGE MANAGEMENT.
50(4), 399-408.
-
Taylor, C. A., Ralphs, M. H., & Kothmann, M. M.
(1997).
Vegetation Response to Increasing Stocking Rate under Rotational Stocking. JOURNAL OF RANGE MANAGEMENT.
50(4), 439-442.
-
Taylor, C. A., Ralphs, M. H., & Kothmann, M. M.
(1997).
Vegetation response to increasing stocking rate under rotational stocking. JOURNAL OF RANGE MANAGEMENT.
50(4), 439-442.
-
Riddle, R. R., Taylor, C. A., Kothmann, M. M., & Huston, J. E.
(1996).
Volatile oil contents of ashe and redberry juniper and its relationship to preference by Angora and Spanish goats. JOURNAL OF RANGE MANAGEMENT.
49(1), 35-41.
-
VOLESKY, J. D., OFARRELL, F. D., ELLIS, W. C., KOTHMANN, M. M., HORN, F. P., PHILLIPS, W. A., & COLEMAN, S. W.
(1994).
A COMPARISON OF FRONTAL, CONTINUOUS, AND ROTATION GRAZING SYSTEMS. JOURNAL OF RANGE MANAGEMENT.
47(3), 210-214.
-
MCFARLAND, A., KOTHMANN, M. M., & BLACKBURN, H. D.
(1992).
CALIBRATING A DIET SELECTION MODEL FOR SHEEP GRAZING RANGELANDS. Agricultural Systems.
39(4), 361-386.
-
BLACKBURN, H. D., & KOTHMANN, M. M.
(1991).
MODELING DIET SELECTION AND INTAKE FOR GRAZING HERBIVORES. ECOLOGICAL MODELLING.
57(1-2), 145-163.
-
KNIGHT, J. C., KOTHMANN, M. M., MATHIS, G. W., & HINNANT, R. T.
(1990).
COW-CALF PRODUCTION WITH ALTERNATIVE GRAZING SYSTEMS. JOURNAL OF PRODUCTION AGRICULTURE.
3(4), 407-414.
-
TAYLOR, C. A., & KOTHMANN, M. M.
(1990).
DIET COMPOSITION OF ANGORA-GOATS IN A SHORT-DURATION GRAZING SYSTEM. JOURNAL OF RANGE MANAGEMENT.
43(2), 123-126.
-
RALPHS, M. H., KOTHMANN, M. M., & TAYLOR, C. A.
(1990).
VEGETATION RESPONSE TO INCREASED STOCKING RATES IN SHORT-DURATION GRAZING. JOURNAL OF RANGE MANAGEMENT.
43(2), 104-108.
-
BLACKBURN, H. D., & KOTHMANN, M. M.
(1989).
A FORAGE DYNAMICS MODEL FOR USE IN RANGE OR PASTURE ENVIRONMENTS. Grass and Forage Science.
44(3), 283-293.
-
WALKER, J. W., HEITSCHMIDT, R. K., DEMORAES, E. A., KOTHMANN, M. M., & DOWHOWER, S. L.
(1989).
QUALITY AND BOTANICAL COMPOSITION OF CATTLE DIETS UNDER ROTATIONAL AND CONTINUOUS GRAZING TREATMENTS. JOURNAL OF RANGE MANAGEMENT.
42(3), 239-242.
-
HINNANT, R. T., & KOTHMANN, M. M.
(1988).
COLLECTING, DRYING, AND PRESERVING FECES FOR CHEMICAL AND MICROHISTOLOGICAL ANALYSIS. JOURNAL OF RANGE MANAGEMENT.
41(2), 168-171.
-
HINNANT, R. T., & KOTHMANN, M. M.
(1987).
NITROGEN CONCENTRATION IN BLOOD AND RUMEN LIQUOR OF CATTLE FED LOW PROTEIN DIETS. JOURNAL OF RANGE MANAGEMENT.
40(5), 425-427.
-
KOTHMANN, M. M., & HINNANT, R. T.
(1987).
NITROGEN-FERTILIZATION OF BAHIAGRASS AND NATIVE VEGETATION. 1-5.
-
RALPHS, M. H., KOTHMANN, M. M., & MERRILL, L. B.
(1986).
CATTLE AND SHEEP DIETS UNDER SHORT-DURATION GRAZING. JOURNAL OF RANGE MANAGEMENT.
39(3), 217-223.
-
SCARNECCHIA, D. L., & KOTHMANN, M. M.
(1986).
OBSERVATIONS ON HERBAGE GROWTH, DISAPPEARANCE, AND ACCUMULATION UNDER LIVESTOCK GRAZING. JOURNAL OF RANGE MANAGEMENT.
39(1), 86-87.
-
DOREN, P. E., SHUMWAY, C. R., KOTHMANN, M. M., & CARTWRIGHT, T. C.
(1985).
AN ECONOMIC-EVALUATION OF SIMULATED BIOLOGICAL PRODUCTION OF BEEF-CATTLE. Journal of Animal Science.
60(4), 913-934.
-
KOTHMANN, M. M., & SMITH, G. M.
(1983).
EVALUATING MANAGEMENT ALTERNATIVES WITH A BEEF-PRODUCTION SYSTEMS-MODEL. JOURNAL OF RANGE MANAGEMENT.
36(6), 733-740.
-
Scarnecchia, D. L., & Kothmann, M. M.
(1983).
A mathematically and conceptually unified approach to grazing- management terminology. 522-525.
-
SCIFRES, C. J., SCIFRES, J. R., & KOTHMANN, M. M.
(1983).
DIFFERENTIAL GRAZING USE OF HERBICIDE-TREATED AREAS BY CATTLE. JOURNAL OF RANGE MANAGEMENT.
36(1), 65-69.
-
ANDERSON, D. M., & KOTHMANN, M. M.
(1982).
A 2-STEP SAMPLING TECHNIQUE FOR ESTIMATING STANDING CROP OF HERBACEOUS VEGETATION. JOURNAL OF RANGE MANAGEMENT.
35(5), 675-677.
-
WHITSON, R. E., HEITSCHMIDT, R. K., KOTHMANN, M. M., & LUNDGREN, G. K.
(1982).
THE IMPACT OF GRAZING SYSTEMS ON THE MAGNITUDE AND STABILITY OF RANCH INCOME IN THE ROLLING PLAINS OF TEXAS. JOURNAL OF RANGE MANAGEMENT.
35(4), 526-532.
-
ALLISON, C. D., KOTHMANN, M. M., & RITTENHOUSE, L. R.
(1982).
EFFICIENCY OF FORAGE HARVEST BY GRAZING CATTLE. JOURNAL OF RANGE MANAGEMENT.
35(3), 351-354.
-
SCARNECCHIA, D. L., & KOTHMANN, M. M.
(1982).
A DYNAMIC APPROACH TO GRAZING MANAGEMENT TERMINOLOGY. JOURNAL OF RANGE MANAGEMENT.
35(2), 262-264.
-
HEITSCHMIDT, R. K., KOTHMANN, M. M., & RAWLINS, W. J.
(1982).
COW-CALF RESPONSE TO STOCKING RATES, GRAZING SYSTEMS, AND WINTER SUPPLEMENTATION AT THE TEXAS EXPERIMENTAL RANCH. JOURNAL OF RANGE MANAGEMENT.
35(2), 204-210.
-
HINNANT, R. T., & KOTHMANN, M. M.
(1982).
POTASSIUM CONTENT OF 3 GRASS SPECIES DURING WINTER. JOURNAL OF RANGE MANAGEMENT.
35(2), 211-213.
-
HINNANT, R. T., & KOTHMANN, M. M.
(1982).
A DURABLE LIVESTOCK EXCLOSURE FOR HERBAGE PRODUCTION AND UTILIZATION SAMPLING. JOURNAL OF RANGE MANAGEMENT.
35(1), 127-128.
-
KOTHMANN, M. M., & SMITH, G. M.
(1981).
COW-CALF MANAGEMENT ALTERNATIVES FOR THE TEXAS COASTAL PRAIRIE. 44-47.
-
TAYLOR, C. A., KOTHMANN, M. M., MERRILL, L. B., & ELLEDGE, D.
(1980).
DIET SELECTION BY CATTLE UNDER HIGH-INTENSITY LOW-FREQUENCY, SHORT DURATION, AND MERRILL GRAZING SYSTEMS. JOURNAL OF RANGE MANAGEMENT.
33(6), 428-434.
-
BRYANT, F. C., KOTHMANN, M. M., & MERRILL, L. B.
(1980).
NUTRITIVE CONTENT OF SHEEP, GOAT, AND WHITE-TAILED DEER DIETS ON EXCELLENT CONDITION RANGELAND IN TEXAS. JOURNAL OF RANGE MANAGEMENT.
33(6), 410-414.
-
ANDERSON, D. M., & KOTHMANN, M. M.
(1980).
RELATIONSHIP OF DISTANCE TRAVELED WITH DIET AND WEATHER FOR HEREFORD HEIFERS. JOURNAL OF RANGE MANAGEMENT.
33(3), 217-220.
-
BRYANT, F. C., KOTHMANN, M. M., & MERRILL, L. B.
(1979).
DIETS OF SHEEP, ANGORA GOATS, SPANISH GOATS AND WHITE-TAILED DEER UNDER EXCELLENT RANGE CONDITIONS. JOURNAL OF RANGE MANAGEMENT.
32(6), 412-417.
-
BRYANT, F. C., & KOTHMANN, M. M.
(1979).
VARIABILITY IN PREDICTING EDIBLE BROWSE FROM CROWN VOLUME. JOURNAL OF RANGE MANAGEMENT.
32(2), 144-146.
-
ACOSTA, R. A., & KOTHMANN, M. M.
(1978).
CHEMICAL COMPOSITION OF ESOPHAGEAL-FISTULA FORAGE SAMPLES AS INFLUENCED BY DRYING METHOD AND SALIVARY LEACHING. Journal of Animal Science.
47(3), 691-698.
-
Kothmann, M. M., & Kallah, M. S.
(1978).
Phenology, Carbohydrate Reserves and Nutrient Content of Heath Aster. Southwestern Naturalist.
23(3), 347-347.
-
ANDERSON, D. M., & KOTHMANN, M. M.
(1977).
MONITORING ANIMAL TRAVEL WITH DIGITAL PEDOMETERS. JOURNAL OF RANGE MANAGEMENT.
30(4), 316-317.
-
DURHAM, A. J., & KOTHMANN, M. M.
(1977).
FORAGE AVAILABILITY AND CATTLE DIETS ON TEXAS COASTAL PRAIRIE. JOURNAL OF RANGE MANAGEMENT.
30(2), 103-106.
-
SCIFRES, C. J., & KOTHMANN, M. M.
(1976).
SITE RELATIONS, REGROWTH CHARACTERISTICS, AND CONTROL OF LOTEBUSH WITH HERBICIDES. JOURNAL OF RANGE MANAGEMENT.
29(2), 154-157.
-
Scifres, C. J., Kothmann, M. M., & Mathis, G. W.
(1974).
Range Site and Grazing System Influence Regrowth after Spraying Honey Mesquite. JOURNAL OF RANGE MANAGEMENT.
27(2), 97-97.
-
Kothmann, M. M., Mathis, G. W., & Waldrip, W. J.
(1971).
Cow-Calf Response to Stocking Rates and Grazing Systems on Native Range (La Produccion de Vacas y Becerros a Differentes Cargas y Sistemas de Pastoreo con Rotacion en Pastizales Naturales). JOURNAL OF RANGE MANAGEMENT.
24(2), 100-100.
-
Mathis, G. W., Kothmann, M. M., & Waldrip, W. J.
(1971).
Influence of Rootplowing and Seeding on Composition and Forage Production of Native Grasses (La Influencia del Arado Desenraizador Sobre la Produccion y Composicion de los Zacates Nativos). JOURNAL OF RANGE MANAGEMENT.
24(1), 43-43.
-
Kothmann, M. M.
(1966).
Nutrient Content of Forage Ingested in the Morning Compared to Evening. JOURNAL OF RANGE MANAGEMENT.
19(2), 95-95.
-
Fowler, D. A., Bakenhus, C., Kothmann, M. M., Macik, M. L., Poling, N., & MacWillie, S.
(2016).
Redesigning Natural Resources Curricula: A Redesign Process Model at Texas A&M University. Journal of Natural Resources and Life Sciences Education: an international journal.
45(1), 1-10.
-
chapter
-
Teague, R., Provenza, F., Norton, B., Steffens, T., Barnes, M., Kothmann, M., & Roath, R.
(2008).
Benefits of multi-paddock grazing management on rangelands: Limitations of experimental grazing research and knowledge gaps. Grasslands: Ecology, Management and Restoration.
(pp. 41-80).
-
Teague, R., Provenza, F., Norton, B., Steffens, T., Barnes, M., Kothmann, M., & Roath, R.
(2008).
Benefits of multi-paddock grazing management on rangelands: Limitations of experimental grazing research and knowledge gaps. Grasslands: Ecology, Management and Restoration.
(pp. 41-80).
-
conference paper
-
Kothmann, M. M.
(1995).
Rangeland ecosystems in the Great Plains: Status and management. CONSERVATION OF GREAT PLAINS ECOSYSTEMS: CURRENT SCIENCE, FUTURE OPTIONS.
199-209.
-
ACOSTA, R. A., & KOTHMANN, M. M.
(1976).
DRYING METHOD CHANGES CHEMICAL COMPOSITION OF ESOPHAGEAL SAMPLES. Journal of Animal Science.
261-261.
-
ANDERSON, D. M., & KOTHMANN, M. M.
(1976).
MONITORING HEIFER TRAVEL WITH DIGITAL PEDOMETERS. Journal of Animal Science.
209-209.
-
KALLAH, M. S., & KOTHMANN, M. M.
(1975).
NUTRIENT CONTENT AND UTILIZATION OF HEATH ASTER. Journal of Animal Science.
336-336.
-
DURHAM, A. J., & KOTHMANN, M. M.
(1975).
WINTER NUTRITION FOR COW-CALF OPERATION IN TEXAS-GULF-COAST. Journal of Animal Science.
334-334.
-
Kothmann, M. M.
(1995).
Rangeland ecosystems in the Great Plains: Status and management. CONSERVATION OF GREAT PLAINS ECOSYSTEMS: CURRENT SCIENCE, FUTURE OPTIONS.
199-209.
Research
principal investigator on
Teaching
teaching activities
- ESSM201 Explore Ecosys Sci & Mgt Instructor
- ESSM281 Hnr-seminar In Essm Instructor
- ESSM314 Prin Range Mgmt World Instructor
- ESSM315 Range Inventory & Monit Instructor
- ESSM481 Senior Seminar Instructor
- ESSM484 Internship Instructor
- ESSM485 Directed Studies Instructor
- ESSM611 Grazing Mgmt & Rng Nutr Instructor
- ESSM684 Professional Internship Instructor
- ESSM685 Directed Studies Instructor
- ESSM691 Research Instructor
Works By Students
chaired theses and dissertations
-
Dube, Sikhalazo (2006-08). A model for adaptive livestock management on semi-arid rangelands in Texas.
Background
education and training
- Ph.D. in Range Science, Texas A&M University - (College Station, Texas, United States) 1968
- M.S. in Range Management, Utah State University - (Logan, Utah, United States) 1963
- B.A.S. in Range Management, Texas A&M University - (College Station, Texas, United States) 1961
awards and honors
- Outstanding Undergraduate Teaching Award, conferred by Range Science Education Council, 2016
Contact
first name
- Merwyn
has last name
- Kothmann
mailing address
-
TEXAS A&M AGRILIFE RESEARCH
Ecosystem Science & Management
2126 TAMU
College Station, TX 77843-2126
USA
Other
- m-kothmann@tamu.edu