jaycv1

Iowa State University, Ames, Iowa
Ph.D.: Co-major in Statistics and EEB (Ecology and Evolutionary Biology), August, 1991.
Dissertation title: Statistical Analysis of Spatial Pattern in Ecological Data.
University of Alaska, Fairbanks, Alaska
M.S.: Botany, December, 1985.
Thesis title: Vegetation Patterns of Two Areas in Southeast Alaska's Forests.
Colorado State University, Fort Collins, Colorado
B.S.: Botany, May, 1979.

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Work Information

1991-present: Biometrician for the Wildlife Conservation Division of the Alaska Department of Fish and Game. I act as a statistical consultant on a wide variety of statistical methods for wildlife research and management; and where I continue my statistical research interests. I am also an adjunct professor of Statistics with the Mathematics Department of the University of Alaska, Fairbanks.
1986-1991: Research Assistant, Department of Botany, Iowa State University. I collected data and conducted research on pattern analysis and developed spatial statistical models of 1) plant populations from glade vegetation of the Ozark region of southeast Missouri, 2) photographic images of vegetation from chalk grasslands, The Netherlands and Germany, and 3) prairies in eastern Minnesota and western Wisconsin. I also assisted in grant writing.
1982-1986: Teaching Assistant, Departments of Biology, University of Alaska, Fairbanks, and Botany, Iowa State University. I taught biology, botany, and genetics labs.
1979-1982: Research Biologist; Chugach and Tongass National Forests, Alaska; Denali National Park, Alaska; and Mt. St. Helens National Monument, Washington. I collected and helped analyze ecological data on plant communities and wildlife usage.

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Teaching

Taught Applied Spatial Statistics at Joint Statistical Meetings, Atlanta, Georgia, 4 August, 2001, 8 hour course.

Taught Introduction to Geostatistical Analysis at the ESRI User Conference, San Diego, California, 24 June, 2000, and 7 July, 2001, 8 hour course.

Co-taught Bayesian Statistics, STAT 692 at University of Alaska, Fairbanks, with Ron Barry, Fall, 1997.

Co-taught Spatial Statistics, STAT 664 at University of Alaska, Fairbanks, with Ron Barry, Fall, 1994.

Co-taught Advanced Sampling Design, STAT 661 at University of Alaska, Fairbanks, with Pham Quang, Spring 1991.

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Some Consulting Projects

Spatial Statistics

Cokriging for precision agricultural data;
Estimation and prediction under aggregation for comparing agricultural crop varieties;
Conditional autoregressive models (CAR) for estimating brucellosis disease rates in Alaska wildlife populations;
Spatio-temporal block kriging of climatic data;
Spatial statistical methods for sampling and analyzing moose surveys;
Integrating spatial statistical methods into GIS software;
Inhomogeneous Poisson point process models for moose relocations;
Poisson point process likelihood methods for line transect sampling;

Bayesian Statistics

Bayesian hierarchical models for monitoring harbor seal counts
Bayesian hierarchical models for survival analysis of grizzly bears;
Bayesian analysis of deer pellet decomposition rates
Parametric empirical Bayes methods for estimating population trends;
Parametric empirical Bayes capture/recapture methods for estimating bear populations;

Generalized Linear Models

Poisson regression for factors affecting harbor seal haulout;
Zero-inflated Poisson regression to model site-specific harbor seal counts as a function of explanatory variables such as tide height and survey date;
Logistic regression analysis of caribou parturition, perinatal calf survival/mortality, and calving time data;
Generalized linear model using logit link for the modeling of sex, age, and location factors affecting trichinosis in bears, lynx and wolves;
Generalized linear model using logit link for modeling of sex, age, and location factors affecting herpes virus in marine mammals;
Generalized linear model with a binomial distribution to analyze proportional data on bear cub mortality and adult mortality for garbage bears near Prudhoe Bay
Logistic regression analysis on the effect of airplane height on seal disturbance;
Linear and logistic regression analyses on factors affecting nest box use by boreal owls;
Linear and logistic regression analyses of caribou calving distribution in relation to oil development on the North Slope

Repeated Measures

Repeated measures analysis of harbor seal movement data;
Repeated measures analysis of caribou calf weight data from various herds around the state;

Survival Analysis

Survival analyses of moose calves using parametric models;
Cox proportional hazard models for grizzly bear survival rates;

Linear Models

Linear regression for harbor seal population trends;
General linear model of sheep calf weight in relation to age, sex, and birth weight;
Weighted regression for trend in moose twinning rates;
Weighted ANOVA for comparing groups for moose twinning rates
Regression analysis of post-calving caribou abundance response to habitat variables;
Regression analyses for relationships of fat content in several bones to caribou weight;
Analysis of variance for moose productivity in a comparison of a control area to one with increased bear harvest;
Analysis of variance on caribou calf weights across years;

Nonparametric Methods

Chi-squared tests for proportions of caribou calf mortality;
Classification and regression tree model (CART) for vegetative characteristics related to nesting and perching behaviors for birds
Nonparametric tests to examine differences by sex, age, location, and length of residency for sample survey questionnaires;
Nonparametric tests for comparing caribou and moose population parameters;

Multivariate Methods

Factor analysis to explore general trends among the questions and respondents in sample survey questionnaires;
Factor analysis of diet composition of bowhead whales;

Randomization and Monte Carlo Methods

Bootstrapping logit and loglinear models for effect of Exxon Valdez oil spill on harbor seals;

Sampling

Simple random sampling design with sightability correction factors for sheep population surveys;
Two stage stratified random sampling methods with sightability correction factors for moose population surveys;
Model-assisted survey sampling methods using regression estimators for moose populations;

Experimental Design

Power analysis for linear trend including within-year and among-year variance;
Power analysis for sheep population surveys;
Randomized sampling design for vegetation sampling for Bison reintroduction to the Fort Yukon area;
Factorial experimental design to test various noises as bear repellents in the Prudhoe Bay oil field development;
Design a sampling protocol for estimating wolf kill rates using simulations;
Design and analysis of experiments on auxin control of plant geotropism.

Nonlinear Models

Nonlinear regression for comparing two time periods of jaw bone growth rates in caribou from the western arctic herd;
Population modeling for musk oxen, caribou, and moose;

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Journal Articles

Ver Hoef, J.M., Neiland, B.J., and Glenn-Lewin, D.C. 1988. Vegetation gradient analysis of two sites in Southeast Alaska. Northwest Science 62: 171-180.
Glenn-Lewin, D.C. and Ver Hoef, J.M. 1988. Prairies and grasslands of the St. Croix National Scenic Riverway, Wisconsin and Minnesota. Prairie Naturalist 20: 65-80.
Ver Hoef, J.M., and Glenn-Lewin, D.C. 1989. Multiscale ordination: a method for detecting pattern at several scales. Vegetatio 82: 59-67.
Ver Hoef, J.M., Glenn-Lewin, D.C., and Werger, M.J.A. 1989. Relationship of horizontal pattern and vertical cover in a chalk grassland. Vegetatio 83: 147-155.
Ver Hoef, J.M. and Cressie, N. 1993. Multivariable spatial prediction. Mathematical Geology 25: 219-240.
Ver Hoef, J.M., Cressie, N., and Glenn-Lewin, D.C. 1993. Spatial models for spatial statistics: Some unification. Journal of Vegetation Science 4: 441-452.
Valkenburg, P., Kelleyhouse, D.G., Davis, J.L., and Ver Hoef, J.M. 1994. Case history of the Fortymile caribou herd, 1920-1990. Rangifer 14(1): 11-24.
Cameron, R.D., and Ver Hoef, J.M. 1994. Predicting parturition rate of caribou from autumn body mass. Journal of Wildlife Management 58: 674-679.
Zarnke, R.L., Gajadhar, A.A., Tiffin, G.B., and Ver Hoef, J.M. 1995. Prevalence of Trichinella nativa in lynx. Journal of Wildlife Diseases 31: 314-318.
Miller, R.E., Ver Hoef, J.M., and Fowler, N.L. 1995. Spatial heterogeneity in eight central Texas grasslands. Journal of Ecology 83: 919-928.
Valkenburg, P., Davis, J.L., Ver Hoef, J.M., Boertje, R.D., McNay, M.E., Eagan, R.M., Reed, D.J., Gardner, C.L., and Tobey, R.W. 1996. Population decline in the Delta caribou herd with reference to other Alaskan herds. Rangifer, Special Issue No. 9: 53-62.
Barry, R.D. and Ver Hoef, J.M. 1996. Blackbox kriging: spatial prediction without specifying the variogram. Journal of Agricultural, Biological, and Environmental Statistics 1: 297-322.
Ver Hoef, J.M. 1996. Parametric empirical Bayes methods for ecological applications. Ecological Applications 6: 1047-1055.
Zarnke, R.L., Harder, T.C., Vos, H.W., Ver Hoef, J.M., and Osterhaus, A. 1997. Serologic survey for phocid herpesvirus-1 and -2 in marine mammals from Alaska and Russia. Journal of Wildlife Diseases 33: 459-465.
Zarnke, R.L., Gamble, R., Heckert, R.A., and Ver Hoef, J.M. 1997. Serologic survey for Trichinella spp. in grizzly bears from Alaska. Journal of Wildlife Diseases 33: 474-479.
Ver Hoef, J.M. and N. Cressie. 1997. Using hidden Markov chains and empirical Bayes change-point estimation for transect data. Environmental and Ecological Statistics 4: 247-264.
Keech, M.A., Stephenson, T.R., Bowyer, R.T., Van Ballenberghe, V., and Ver Hoef, J.M. 1998. Relationship between blood-serum variables and depth of rump fat in Alaskan moose. Alces 34: 173-179.
Ver Hoef, J.M. and R.D. Barry. 1998. Modeling crossvariograms for cokriging and multivariable spatial prediction. Journal of Statistical Planning and Inference 69: 275-294.
Zarnke, R.L., Worley, D.E., Ver Hoef, J.M., and McNay, M.E. 1999. Trichinella sp. in wolves from interior Alaska. Journal of Wildlife Diseases 35: 94-97.
Frost, K.J., Lowry, L.F., and Ver Hoef, J.M. 1999. Montoring the trend of harbor seals in Prince William Sound, Alaska, after the Exxon Valdez oil spill. Marine Mammal Science 15: 494-506.
Zarnke, R.L., Dubey, J.P., Kwok, O.C.H., and Ver Hoef, J.M. 2000. Serologic survey for Toxoplasm gondii in selected wildlife species from Alaska. Journal of Wildlife Diseases 36: 219-224.
Keech, M.A., R.T. Bowyer, J.M. Ver Hoef, R.D. Boertje, B.W. Dale, and T.R. Stephenson. 2000. Life-history consequences of maternal condition in Alaskan moose. Journal of Wildlife Management 64:450-462.
Zarnke, R.L., Dubey, J.P., Ver Hoef, J.M., McNay, M.E., and Kwok, O.C.H. 2001. Serologic survey for Toxoplasm gondii in lynx from interior Alaska. Journal of Wildlife Diseases 37: 36-38.
Zarnke, R.L., Evermann, J., Ver Hoef, J.M., McNay, M.E., Boertje, R.D., Gardner, C.L., Adams, L.G., Dale, B.W., and Burch, J. 2001. Serologic survey for canine coronavirus in wolves from Alaska. Journal of Wildlife Diseases 37: 740-745.
Ver Hoef, J.M., P. Valkenburg, and J.R. Dau. 2001. Modeling growth of mandibles in the Western Arctic caribou herd. Rangifer 21: 29-34.
Ver Hoef, J.M. and K. Frost. 2002. A Bayesian hierarchical model for monitoring harbor seal changes in Prince William Sound, Alaska. Submitted to Environmental and Ecological Statistics.
Ver Hoef, J.M. 2002. Sampling and geostatistics for spatial data. Invited paper submitted to Ecoscience.
Ver Hoef, J.M., N. Cressie, and R.P. Barry. 2002. Flexible Spatial Models for kriging and cokriging using moving averages and the Fast Fourier Transform (FFT). Submitted to Journal of Computational and Graphical Statistics.

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Books, Book Chapters, Book Reviews, Proceedings

Glenn-Lewin, D.C. and Ver Hoef, J.M. 1988. Scale, pattern analysis, and species diversity in grasslands. Pages 115- 129 in During, H.J., Werger, M.J.A. and Willems, J.H. (eds.), Diversity and Pattern in Plant Communities. SPB Academic Publishing, Den Haag, The Netherlands.
Ver Hoef, J.M. and Cressie, N. 1993. Spatial statistics: Analysis of field experiments. Pages 319-341 in Scheiner, S.M. and Gurevitch, J. (eds.), Design and Analysis of Ecological Experiments, Chapman and Hall, 445 p.
Ver Hoef, J.M. 1993. Universal kriging for ecological data. Pages 447-453 in Goodchild, M.F., Parks, B., and Steyaert, L.T. (eds.) Environmental Modeling with GIS, Oxford University Press, 488 p.
Cressie, N., and Ver Hoef, J.M. 1993. Spatial statistical analysis of ecological data: From observation to inference. Pages 404-413 in Goodchild, M.F., Parks, B., and Steyaert, L.T. (eds.) Environmental Modeling with GIS, Oxford University Press, 488 p.
Frost, K.J., Lowry, L.F., Sinclair, E., Ver Hoef, J.M., and McAllister, D.C. 1994. Impacts on distribution, abundance, and productivity of harbor seals. Pages 97-118 in T.R. Loughlin (ed.), Impacts of the Exxon Valdez Oil Spill on Marine Mammals, Academic Press, San Diego, California, 395 p.

Ver Hoef, J.M. 1996. Review of Data Analysis in Community and Landscape Ecology, edited by R.H.G. Jongman, C.J.F. ter Braak, and O.F.R. van Tongeren. Ecoscience 3: 132-133.
Ver Hoef, J.M. and Cressie, N. 2001. Spatial statistics: Analysis of field experiments. In Scheiner, S.M. and Gurevitch, J. (eds.), Design and Analysis of Ecological Experiments. Second Edition, Oxford University Press, p. 289-307.
Ver Hoef, J.M., Cressie, N., Fisher, R.N., and Case, T.J. 2001. Uncertainty and spatial linear models for ecological data. Pages 214 – 237 in Hunsaker, C.T., Goodchild, M.F.. Friedl, M.A., and Case, T.J. (eds.), Spatial Uncertainty for Ecology: Implications for Remote Sensing and GIS Applications Springer-Verlag, New York.
Johnson, K., Ver Hoef, J.M., Krivoruchko, K., and Lucas, N. Using ArcGIS Geostatistical Analyst. 2001. ESRI press, 300 p.
Ver Hoef, J.M. 2001. Predicting finite populations from spatially correlated data. 2000 Proceedings of the Section on Statistics and the Environment of the American Statistical Association, pgs. 93-98.
Cressie, N. and Ver Hoef, J.M. 2001. Multivariate geostatistics for precision agriculture. Bulletin of the International Statistical Institute, 53^rd Session Proceedings, pgs. 407 – 410.
Ver Hoef, J.M. 2001. Biodiversity. Pages 181-183 in El-Shaarawi, A.H. and Piegorsch, W.W. (eds.), Encyclopedia of Environmetrics, Vol. 1, Wiley, Chichester, U.K.
Ver Hoef, J.M. 2001. Biogeography. Pages 183-186 in El-Shaarawi, A.H. and Piegorsch, W.W. (eds.), Encyclopedia of Environmetrics, Vol. 1, Wiley, Chichester, U.K.
Ver Hoef, J.M. 2001. Model-assisted sampling. Pages 1283-1284 in El-Shaarawi, A.H. and Piegorsch, W.W. (eds.), Encyclopedia of Environmetrics, Vol. 3, Wiley, Chichester, U.K.
Ver Hoef, J.M. 2001. Population viability analysis. Pages 1625-1627 in El-Shaarawi, A.H. and Piegorsch, W.W. (eds.), Encyclopedia of Environmetrics, Vol. 3, Wiley, Chichester, U.K.
Fortin, M.-J., Dale, M.R.T., and Ver Hoef, J.M. 2001. Spatial analysis in ecology. Pages 2051-2058 in El-Shaarawi, A.H. and Piegorsch, W.W. (eds.), Encyclopedia of Environmetrics, Vol. 3, Wiley, Chichester, U.K.

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Presentations

September, 2001. Invited paper, “Bayesian Applications for Wildlife Studies,” at the Wildlife Society Annual Meetings, Reno, Nevada.
May, 2001. Invited paper, “Flexible Spatial Models for kriging and cokriging using moving averages and the Fast Fourier Transform (FFT),” at the Spatial Moving Average Workshop, NRCSE, Seattle, Washington.
May, 2001. Invited paper, “Classical sampling methods versus geostatistics in environmental sciences,” at Spatial Statistics in the 21^st Century, Chicago Chapter of the ASA, Chicago, Illinois.
August, 2000. Invited Introductory Overview Lecture, “Spatial Statistics, the Final Frontier, ” at the American Statistical Association Annual Meetings, Indianapolis, Indiana
August, 2000. Contributed paper, “Estimation of Finite Populations from Spatially Correlated Data, ” at the American Statistical Association Annual Meetings, Indianapolis, Indiana.
June, 2000. Contributed paper, “Using spatial statistical methods to estimate moose populations,” at the 36^th Annual North American Moose Conference and Workshop, Whitehorse, Canada.
May, 2000. Invited paper, “Hierarchical models for monitoring trend in ecological populations,” at the Workshop on Hierarchical Modeling in Environmental Statistics, Columbus, Ohio.
December, 1999. Invited paper, “Spatial statistics in GIS,” at the Biennial Conference on the Biology of Marine Mammals, Maui, Hawaii.
December, 1999. Contributed paper, “Bayesian Hierarchical Models for Estimating Harbor Seal Changes,” at the Biennial Conference on the Biology of Marine Mammals, Maui, Hawaii.

August, 1999. Contributed paper, "Flexible covariance, variogram, and crossvariogram models using the fast Fourier transform (FFT)," (R. Barry, co-author) at the American Statistical Association Annual Meetings, Baltimore, Maryland.
April, 1999. Invited speaker, "Implications of hierarchical models on sampling designs for long term monitoring of ecological data," at the Ninth Lukacs Symposium, Frontiers of Environmental and Ecological Statistics for the 21^st Century: Synergistic Challenges, Opportunities and Directions for Statistics, Ecology, Environment, and Society, Bowling Green, Ohio.
August, 1998. Invited speaker, "Hierarchical models for analyzing spatial ecological data," at the American Statistical Association Annual Meetings, Dallas, Texas.
October, 1997. Young researcher poster award presentation, "Constructing and fitting models for cokriging and multivariable spatial prediction," at Statistics for Correlated Data, A Conference Marking the 50^th Anniversary of the Department of Statistics at Iowa State University, Ames, Iowa.
August, 1997. Contributed paper, "Experimental designs for spatially autocorrelated data using a computer intensive method, " at the American Statistical Association Annual Meetings, Anaheim, California.
August, 1996. Invited speaker, "Spatio-temporal prediction of snow depth for caribou winter range," (R. Barry, co-author) at the American Statistical Association Annual Meetings, Chicago, Illinois.
August, 1995. Contributed paper, "Modeling hidden Markov chains using empirical Bayes methods," (N. Cressie, co-author) at the American Statistical Association Annual Meetings, Orlando, Florida.
August, 1995. Invited speaker, "Parametric empirical Bayes methods for ecological data," at the Ecological Society of America Annual Meetings, Snowbird, Utah.
September, 1994. Invited speaker, "Variation across scales - Implications for aquatic networks," at the Sampling Designs of Aquatic Networks Across Scales Workshop, Timberline Lodge, Oregon.
August, 1994. Contributed paper, "Modeling cross-variograms for cokriging and multivariable spatial prediction," (R. Barry, co-author) at the American Statistical Association Annual Meetings, Toronto, Ontario.
August, 1993. Invited speaker, "Statistical model-building and universal kriging for ecological data," at the Ecological Society of America Annual Meetings, Madison, Wisconsin.
August, 1993. Contributed paper, "Bayesian estimation of average patch size in one-dimensional transects," (N. Cressie, co-author) at the American Statistical Association Annual Meetings, San Francisco, California.
September, 1991. Invited speaker, presented "Universal kriging for ecological data," at the First International Conference/Workshop on Integrating Geographical Information Systems and Environmental Modeling, Boulder, Colorado.
August, 1991. Invited speaker, presented, "Spatial design in ecological studies," (N. Cressie, co-author) at the Ecological Society of America Annual Meetings, San Antonio, Texas.
March, 1991. Presented "Multivariable spatial prediction," as a student travel award at the Eastern North American Region Spring Biometrics Meetings, Houston, Texas.
August, 1990. Presented "Nested ANOVA and variogram analysis for spatial pattern," (N. Cressie and D.C. Glenn-Lewin, co- authors) at the American Statistical Association Annual Meetings, Anaheim, California.
August, 1990. Poster presentation "Statistical techniques for average patch size and intensity of spatial pattern," (N. Cressie and D.C. Glenn-Lewin, co-authors) at the Ecological Society of America Annual Meetings, Snowbird, Utah.
July, 1988. Poster presentation "Relationship of horizontal pattern and vertical cover in a chalk grassland," (D.C. Glenn-Lewin and M.J.A. Werger, co-authors) at the International Symposium of the IAVS, Vienna, Austria.
March, 1988. Poster presentation "Multiscale ordination as a method for landscape ecology," (D.C. Glenn-Lewin, co-author) at the Third Annual Landscape Ecology Symposium, Albuquerque, New Mexico.

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Professional Activities

Manuscript referee:

Journal of the American Statistical Association
Journal of Agricultural, Biological, and Environmental Statistics
Journal of Statistical Planning and Inference
Environmental and Ecological Statistics
Environmentrics
Mathematical Geology
Ecology
Journal of Ecology
Landscape Ecology
Journal of Wildlife Management
Journal of Vegetation Science
Computers and Geosciences
Vegetatio
Plant Ecology
Canadian Journal of Forest Research
Limnology and Oceanography
Northwest Science
Alaska Fisheries Research Bulletin
Ecoscience
Alaska Sea Grant

Proposal Reviews:

The Israel Science Foundation

Service:

Organized, with David Higdon, a workshop on Spatial Moving Averages at the National Research Center for Statistics in the Environment, May 21 – 23, Seattle, WA;
Board of Editors, Ecology and Ecological Monographs, 2001 to present;
Editor of the section on Ecological Statistics for the Encyclopedia of Environmental Statistics, Piegorsch and Shaarawi, Editors, Wiley;
Program-Chair elect 2002, Section on Statistics and the Environment, American Statistical Association;

Served on graduate committees for 5 students at University of Alaska, Fairbanks;
Organized a 3-day GIS workshop for ADF&G in Anchorage in May, 1998 and October, 2000;
Alaska Section of the American Statistical Association (ASA) Council of Chapters Representative, 1993-present;
Council of Chapters Representative to the Advisory Committee on Continuing Education Evaluation Subcommittee;
ASA Council of Chapters Traveling Course Committee;
Alaska Chapter of the ASA Vice-President, 1994;
Alaska Chapter of the ASA President, 1995;
Search Committee Member for University of Alaska Landscape Ecology Position, 1995;
Judge for Alaska Science Fair, 1995.

Affiliations:

American Statistical Association
Biometric Society
Ecological Society of America
International Association for Vegetation Science
Northwest Scientific Association
Sigma Xi

Honors and Awards

The Zaffarano Prize for Graduate Student Research, $100, Iowa State University, 1991.
Research Excellence Award, $100, Iowa State University, 1991.
Student Travel Award to Eastern North America Region Spring Biometrics Meetings, Houston, Texas, $750, 1991.
Sigma Xi nomination to full membership with first year fees waived, Iowa State University, 1991.
Mu Sigma Rho, Statistical Honor Society, Iowa State University, 1989.
Premium for Academic Excellence Award, Iowa State University, 1987-1989.

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Consulting Information

I have a private statistical consulting business. I have had, or currently have, contracts with Dekalb Genetics, ESRI (ARCINFO), and Biosphere II. My statistical consulting has usually involved the application of spatial statistics, which is my specialty. Contact me for further information.

Ver Hoef Statistical Consulting Services
3563 Ida Lane
Fairbanks, Alaska 99709

Phone: (907) 457-4567

email: Jay Ver Hoef

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Contact Information

Alaska Department of Fish and Game
1300 College Road
Fairbanks, Alaska 99701-1599

Phone: (907) 459-7278

FAX: (907) 451-9723

University email: Jay Ver Hoef
Fish and Game email: Jay Ver Hoef

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Last Revised: 15 December, 2001