Fekedulegn Desta Research Associate Department of Statistics West Virginia University

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1 FEKEDULEGN, VITAE 1 Fekedulegn Desta Research Associate Office: 411 Hodges Hall Phone: (304) ext FAX: (304) fdesta@stat.wvu.edu Home: 180 Canfield Street Morgantown, WV, Education Ph.D. (Sep.2001) M.S. (May 2001) Certificate (May 1996) M.Sc. (July 1996) B.Sc. (September 1992) Field: Forest Resource Science Area of emphasis: Dendroecology Dissertation: Spatial and Temporal Analysis of Radial Growth in an Appalachian Watershed Field: Statistics Problem Report: Application of Principal Components Regression in Dendroecology Field: Research Methods Area of Emphasis: Analysis of observational and experimental data in biological science Department of Crop Science, Horticulture, and Forestry Field: Agriculture Area of Emphasis: Forest Biometrics Thesis: Theoretical Non-linear Mathematical Models in Forest Growth and Yield Modeling. Alemaya University of Agriculture, Ethiopia Major: Forestry (with honor)

2 FEKEDULEGN, VITAE 2 Professional Experience September 2001 to present January 2001 to August 2001 Research Associate Responsibilities: Providing statistical consulting services to CAFCS, NIOSH, DNR, USDA Forest Service and teaching undergraduate statistics courses. Instructor Responsibilities: Teaching undergraduate statistics courses, tutoring, and providing assistance to on-line laboratory classes to 2000 Graduate Teaching Assistant Responsibilities: Teaching laboratory classes for undergraduate statistics courses, providing assistance for on-line statistics course development to 1998 Graduate Research Assistant Responsibilities: Conducting research on growth-climate relationship for selected Appalachian hardwood species. I have made extensive study in the area of dendrochronology, particularly on the statistical methods used for modeling tree growth-climate relationships. Summer of 1998, 1999, and 2000 Cooperating Research Scientist USDA Forest Service, Morgantown Responsibilities: Conducting research on statistical methods used for assessing quality of tree-ring data, on statistical models used to asses the impact of gypsy moth on tree growth, and providing short courses for technical stuff on the use of common software s in dendroclimatology to 1996 Graduate Research Assistant Department of Crop Science, Horticulture, and Forestry (Biometrics div.) Responsibilities: Conducting research on applications of non-linear mathematical models in forest growth and yield. I made extensive reviews and analyses in the application of nonlinear models (such as the Chapman-Richards model, the von Bertalanffy model, the Weibul model, the Richard's model, the Gompertz model, the Logistic model, the Mitcherlich model, the Monomolecular model and the Negative exponential model) for predicting tree growth. This work received meritorious recognition Assistant Lecturer Department of Forestry Alemaya University of Agriculture Responsibilities: Teaching undergraduate forestry courses.

3 FEKEDULEGN, VITAE 3 Computer Skills Operating Systems Statistical Packages Other Application Programs Windows and Unix SAS (STAT), JMP, Mathematica, S-plus, and MS Excel MS Word, MS Power Point Courses Taught Introduction to probability and statistics (STAT 215) Elementary statistical inference (STAT 211) Courses Tutored STAT 201: Introduction to probability and statistics. STAT 211: Elementary statistical inference. STAT 311: Statistical Methods I. STAT 312: Statistical Methods II. STAT 351: Applied Regression Analysis. Academic Honors and Awards Outstanding Graduate Teaching Assistant,, Department of statistics, April 2000 Recognition for Research Achievement in Pursuit of the Master of Science in Forest Biometrics,, May 1996 (awarded $1500) Publications Fekedulegn, D., Mac Siurtain, M.P. & Colbert, J.J Parameter estimation of nonlinear growth models in forestry. Silva Fennica. 34(4): J.J. Colbert, and Fekedulegn Desta Effect of gypsy moth defoliation on tree growth-preliminary models for effects of cumulative defoliation on individual host tree radial increment. USDA Forest Service, Northeastern Research Station, Gen.Tech. Report NE-227: James, S. Rentch, Fekedulegn, Desta, and Gary W. Miller. (in press-2001). Climate, canopy disturbance, and radial growth averaging in a second growth mixed-oak forest in West Virginia, U.S.A. Canadian Journal of Forest Research. Fekedulegn, D., J.J. Colbert, M.E. Schuckers and R.R. Hicks (in review). Coping with multicollinearity: An example on theory and application of principal components regression in dendroecology. Fekedulegn, D. and M.E. Schuckers. 2001(in preparation). Concerns on elimination of principal components while developing response function in dendroecology. Fekedulegn, Desta & Colbert, J.J Introduction to Program COFECHA and its Output Interpretation. Users Manual, USAD Forest Service, 38p.

4 FEKEDULEGN, VITAE 4 Fekedulegn, D. J.J. Colbert, R.R. Hicks, and M.E. Schuckers The modified negative exponential model in dendro-climatic analysis: issues on the parameters for short tree-ring series (submitted). Fekedulegn, D., J.J. Colbert, and M.E. Schuckers The effect of detrending models on autocorrelation structure of ring-width index and on growth climate relationships (submitted). M.E. Schuckers, Fekedulegn, D and J.J. Colbert Application of nonlinear functions in modeling the dynamics of individual tree growth variables (in preparation). Fekedulegn, Desta Spatial and Temporal Analysis of Growth in an Appalachian Watershed., Dissertation (completed). Fekedulegn Desta Application of principal components regression. West Virginia University, Department of statistics, Problem report, 62p. Fekedulegn Desta Application of non-linear mathematical functions in forest growth and yield modeling., Thesis, 210p. Presentations and Posters Fekedulegn, Desta, S.J. Tajchman, and J.J. Colbert Application of non-linear functions in modeling the dynamics of individual tree/stand growth variables : Dendroclimatic analysis of pondersoa pine and Douglas-fir in the Central Colorado Front Range: Analytic methods for dendrochronological studies., Division of Forestry: August 23, Editorial Activities I have reviewed an article entitled Additivity of non-linear biomass equations for Canadian Journal of Forest Research (April, 2000). Interests Biometry, Mathematical Statistics, Dendrochronology, Forest Ecology. Funding Predicting change in the growth curves of red oak due to gypsy moth defoliation Co- Operative grant from USDA Forest service. Co-PI. ($12,000).

5 FEKEDULEGN, VITAE 5 Reference List Dr. Ray R. Hicks Jr. (Chair of my doctoral committee in Forest Resource Science) Dr. Gerald R. Hobbs, Jr. (Chair of my masters committee in Statistics) Dr. Mairtin Mac Siurtain (Chair of my masters committee in Forest Biometrics) Dr. Harshinder Singh Professor of Forest Ecology College of Agriculture, Forestry and Consumer Sciences Morgantown, WV Phone: (304) rhicks3@wvu.edu Associate Professor Eberly College of Arts and Sciences Phone: (304) ghobbs@stat.wvu.edu Faculty of Agriculture Belfield Campus Dublin 4 Ireland Phone: mairtin.macsiurtain@ucd.ie Visiting Professor Eberly College of Arts and Sciences P.O.Box 6330 Phone: (304) Fax: (304) hsingh@stat.wvu.edu