2002-2003 Edition
Texas A&M University Graduate CatalogTexas A&M University Graduate Catalog
Catalog Contents
Academic Calendar
Board of Regents and System Administrative Officers
Texas A&M University Administrative Officers
Office of Graduate Studies
General Information
Degree Information
Admission
Registration and Academic Status
Tuition, Fees and Other Financial Information
Housing
Orientation
Resources for Students
Texas A&M University at Galveston
Course Descriptions
Faculty
Appendices
Section ContentsPrevious PageNext Page
 

Department of Rangeland Ecology
and Management

R. J. Ansley, Jr., T. W. Boutton, D. D. Briske, J. R. Conner, T.D.Forbes, W. T. Hamilton, C. W. Hanselka, C. R. Hart, S. L. Hatch, R. W. Knight, M. M. Kothmann*, U. P. Kreuter, D. K. Loh, R. K. Lyons, A. McGinty, B. Mohanty, M. K. Owens, W. E. Pinchak, J. L. Schuster, F. E.Smeins, J. W. Stuth, C. A. Taylor, Jr., R. W. Teague, D. N. Ueckert, J. W. Webb, S. G. Whisenant, L.D. White, R.E.Whitson (Head), B. P. Wilcox, X. Wu

* Graduate Advisor

Graduate studies lead to the MAgr, MS and PhD degrees in Rangeland Ecology and Management. The MS-thesis and PhD degrees place emphasis upon fundamental research into the ecology, conservation and integrated management of rangeland resources. The MAgr and MS-nonthesis degrees are professional (nonresearch) programs providing advanced instruction on the ecology and management of rangeland resources.

The MAgr degree program is designed to give students broad academic training combined with practical experience to develop management skills. The program includes a work internship on a rangeland resource or in the range-livestock industry, and emphasizes a diversified, multidisciplinary set of courses involving faculty with both scientific and industry experience. The MS degree is designed to give the student an advanced understanding of rangeland ecology and management. The degree prepares the student for further graduate work or careers in the public or private sector of environmental or resource management, research, teaching and extension.

Facilities and equipment are available for advanced instruction and student research in all phases of rangeland ecology and management. Field sites and facilities are available throughout Texas for the study of biosystematics, biogeochemistry, economics, range animal and plant nutrition, watershed management, plant ecology, landscape ecology, natural resource policy, resource management, ecological restoration, vegetation manipulation, knowledge engineering and simulation modeling and ecosystem management. The department is an approved participant in the U.S. Department of Energy graduate student global change program.

Graduate courses are designed to develop the academic skills of individuals and to advance their knowledge in the professional field of rangeland ecology and management and supporting disciplines. Departmental seminars supplement the individual education of graduate students and serve to relate the most recent research findings applicable to the discipline. Individually planned graduate programs assure a sound education for each candidate.

Students in the Department of Rangeland Ecology and Management are required to have adequate preparation in rangeland ecology and management as well as one or more supporting fields such as animal science, botany, economics, soil science and wildlife science. There is no foreign language requirement for the PhD degree in Rangeland Ecology and Management.

(RLEM)

601. Rangeland Resource Management. (3-0). Credit 3.

Basic concepts and theories of rangeland resource management; trends in range classification, grazing management and improvement practices. Prerequisite: Graduate classification in agriculture or related subject matter areas.*

602. Ecology and Land Uses. (3-0). Credit 3.

Ecological foundations for sustained use of natural resources; climatic, edaphic, biotic and cultural factors in land resource allocation; land and cover viewed with respect to population dynamics, succession and climax, gradients and graduation, equilibria and imbalance. Prerequisite: Graduation classification in agriculture or in allied subject.*

603. Range and Forest Watershed Management. (3-0). Credit 3.

Management of range and forest watersheds; influence of range and forest practices on runoff, interception, infiltration, erosion and water quality; current literature and research advances.*

604. Grazing Management and Range Nutrition. (3-0). Credit 3.

Nutritional ecology of domestic and wild herbivores on rangelands; vegetation and animal response to various grazing management practices; diet selection, quality, intake and supplementation of herbivores.*

607. Range Plant Ecophysiology. (3-0). Credit 3.

Investigation of physiological mechanisms influencing ecological patterns and processes, including plant acclimation and adaptation in contrasting habitats, abiotic controls on species productivity and distribution, relevant conceptual and experimental approaches, and integration among ecological scales. Prerequisites: RENR 205 or MEPS 313 or equivalent; graduate classification.

609. Plant and Range Ecology. (3-0). Credit 3.

Investigation of community/ecosystem/landscape distribution patterns, structure, spatial/temporal organization and function, paleoecology, ecological succession, disturbance regimes, ecological diversity and classification schemes. North American rangelands (grasslands, shrublands, deserts, wetlands, etc.) stressed but world ecosystems reviewed. Prerequisites: RENR 205; RENR 215 or equivalent; graduate classification.*

610. Range Grasses and Grasslands. (2-3). Credit 3.

Basic concepts of grass structure and classification, recent advances in agrostological research, genetic and ecological basis for patterns of variation and evolution in grasses. Offered Spring Semester of even numbered years.*

612. Restoration Ecology. (3-0). Credit 3.

Conceptual framework for restoration ecology and ecological restoration; background information, restoration strategies and critical thinking skills; examination of current literature and case studies involving numerous objectives, problems, limitations, socioeconomic considerations and ecological potentials. Prerequisite: Graduate classification.*

614. Advances in Range Improvement Practices. (3-0). Credit 3.

Principles and recent advances in brush and weed control with mechanical, chemical, burning and biological methods; interrelationships of brush management with grazing, wildlife and watershed management; planning and economic analysis of range improvement practices.*

616. Fire and Natural Resources Management. (2-3). Credit 3.

Behavior and use of fire in the management of natural resources; principles underlying the role of weather, fuel characteristics and physical features of the environment related to development and implementation of fire plans. Prerequisites: Graduate classification and approval of instructor. Offered Spring Semester of odd numbered years.*

619. Ecology of Shrubs and Shrublands. (3-0). Credit 3.

Structure and function of savannas, woodlands and shrub-dominated landscapes in arid and semi-arid regions; physiological ecology and population biology of contrasting growth forms discussed and related to soils, herbivory, succession, stability and dynamics of grass-woody plant interactions; current literature emphasized. Prerequisites: RENR 205 or equivalent; graduate classification.*

622. Nutrient Cycling: Global and Ecosystem Perspectives. (3-0). Credit 3.

Biogeochemical cycles of carbon, nitrogen, sulfur and phosphorus and their interaction with biotic and abiotic processes; biogeochemical processes investigated at the global level and in several types of terrestrial ecosystems; addressing global climate change, deforestation, acid precipitation, ozone depletion. Prerequisites: RENR 205 or equivalent; graduate classification.*

633. Wetland Plant Taxonomy. (1-4). Credit 3.

Interpretation of plant morphologies for keying and the identification of wetland plants from prime habitats; plant communities including the plant's adaptation to variation in salinity and soils; identification of inconspicuous flowered plant species including sedges, rushes and grasses. Prerequisite: RLEM 304 or approval of instructor. Offered Fall Semester of even numbered years.*

635. Landscape Analysis and Modeling. (2-2). Credit 3.

Introduction to quantitative methods of landscape analysis and modeling for applications in natural resource conservation and management; quantification of landscape composition and configuration; spatial statistical methods for characterizing landscape pattern; methods for hypothesis testing with spatial data; landscape modeling approaches and applications; current literature and software. Prerequisite: Approval of instructor.*

681. Seminar. Credit 1 each semester.

Current scientific work in natural resource management and related subjects in American and foreign fields. Prerequisite: Graduate classification.

684. Professional Internship. Credit 1 to 4.

Work study program for on-the-job training in Master of Agriculture program in range science. Prerequisite: Master of Agriculture candidate in rangeland ecology and management.

685. Directed Studies. Credit 1 to 4 each semester.

Investigations not included in student's research for thesis or dissertation. Lectures, conferences, field work, reports. Prerequisite: Graduate majors or minors in range science.

689. Special Topics in... Credit 1 to 4.

Selected topics in an identified area of range science. May be repeated for credit. Prerequisite: Graduate classification.

691. Research. Credit 1 or more each semester.

Research for thesis or dissertation. Prerequisite: Graduate majors in rangeland ecology and management.

*Field trips required for which departmental fees may be assessed to cover costs.