Rassa O Dale

STATISTICIAN (BIOLOGY)

Contact Info

Short Biography

Rassa O. Draugelis-Dale, Ph.D. 1985, M.S. 1981, M.S. 1979, B.S. 1975

Loma Linda University, CA, University of Southern California, California State University, Los Angeles

Mathematical Sciences, Biometry, Biomedical Engineering, and Biology

Draugelis-Dale is experienced in mathematical/computer modeling and statistical consultations/analyses for a variety of disciplines; initiated, directed and implemented research projects; developed and conducted university lectures, seminars, and workshops; as well as created/instituted curricula and education programs. Her research interests range from mathematical/computer modeling and statistical analyses of biomedical (physiological) and organic/inorganic analytical data, epidemiological models, and environmental sciences to theoretical research in robust statistics, sensitivity analysis, small sample asymptotic techniques, and habitat suitability models (Loma Linda University, University of Southern California, University of California, Irvine, California Summer Mathematics Institute, Lockheed Environmental Systems and Technologies Co., Mifflin & Associates, Inc., USGS National Wetlands Research Center).

Draugelis-Dale is employed as Statistician at USGS National Wetlands Research Center (1995-current), where duties include full statistical support and authorship for migratory waterfowl and aquatic animal research, forest ecology, and National Water Quality Assessment programs: (1) research project and manuscript peer review; (2) consultation; (3) experimental design; (4) analyses for a broad range of statistical applications (univariate and multivariate), including ordination and Bayesian methods, Monte Carlo simulations, and time series analyses; (5) data results presentation, interpretation, and documentation; and (6) authorhip of manuscripts, abstracts, posters, and technical or open file reports.

Draugelis-Dale has completed extensive continuing education training at the SAS Institute, Inc. in SAS software, and created and developed three (in five parts) self-training, computer programming course manuals in SAS statistical software for workshop training.

Publications

Jill A. Jenkins, Eilts, B.E., Guitreau, A.M., Figiel, C.R., Draugelis-Dale, R.O., and Tiersch, T.R. 2011. Sperm quality assessments for endangered razorback suckers Xyrauchen texanus. Reproduction 141(1): 55–65.

Jenkins, J.A., H.M. Olivier, R.O. Draugelis-Dale, M.D. Kaller. 2011. Davis Pond freshwater diversion biomonitoring: prediversion and postdiversion freshwater fish data. U.S. Geological Survey Data Series 604, 5 p. [Link]

Keeland, B.D., R.O. Draugelis-Dale, J.W. McCoy. 2010. Tree growth and mortality during 20 years of managing a Green-Tree Reservoir in Arkansas, USA. Wetlands 30(2):345-357.

McCoy, J.W., R.O. Draugelis-Dale, B.D. Keeland, R. Darville. 2010. A comparison of litter production in young and old baldcypress (Taxodium distichum [L.]) stands at Caddo Lake, Texas. Texas Journal of Science 62(1): 25-40.

Draugelis-Dale, Rassa. 2007. Assessment of effectiveness and limitations of habitat suitability models for wetland restoration. U.S. Geological Survey Open File Report 2007-1254, 136p.

Jenkins, J.A. and R. Draugelis-Dale. 2006. Bioindicators from mosquitofish (Gambusia affinis) sampled from the Imperial Valley in Southern California. U.S. Geological Survey Open File Report 2006-1307, 48p.

Patino, R., S.L. Goodbred, R. Draugelis-Dale, C.E. Barry, J.S. Foott, M.R. Wainscott, T.S. Gross, K.J. Covay. 2003. Morphometric and histopathological arameters of gonadal development in adult common carp from contaminated and reference sites in Lake Mead, Nevada. Journal of Aquatic Animal Health, 15(1): 55-68.

Draugelis, R.O. 1985. A Sensitivity Analysis of the Coefficients for the Transformation of the Electrocardiographic Orthogonal Three-lead System to the Standard Twelve-lead System. Doctoral dissertation, Department of Mathematical Sciences, Loma Linda University, Loma Linda. 346 p.

Draugelis-Dale, R.O. 1992. Robust acceptance regions for performance evaluation studies. Lockheed Environmental Systems and Technologies Co., Environmental Services Division, and U.S. Environmental Protection Agency Status Report contract 68-CO-0009.

Dale, Rassa. 2000. Probability of contamination: How can you tell if a fish is from contaminated waters? Presentation. Lake Mead Endocrine-disruptive Contaminants Study Meeting, Denver, Aug 28-30, 2000.

Burkett, V., R. Draugelis-Dale, H. Williams, S. Schoenholtz. 2005. Effects of flooding regime and seedling treatment on early survival and growth of Nuttall oak. Restoration Ecology, 13(3): 471-479.

Day, R.H., T.W. Doyle, R.O. Draugelis-Dale. 2006. Interactive effects of substrate, hydroperiod, and nutrients on seedling growth of Salix nigra and Taxodium distichum. Environmental and Experimental Botany 55(1-2): 163-174.

My USGS Science Strategy Areas

Understanding Ecosystems & Predicting Ecosystems Change

Modeling Tree Damage Using Probit Analysis

The map of Louisiana parishes showing tree damage using 2005 Forest Inventory Analysis (FIA) data following Hurricane Gustav in 2008.

Contact Information

Rassa O Dale
700 Cajundome Blvd.
Lafayette, LA 70506
daler@usgs.gov
337-266-8689
337-266-8586 - Fax
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