Jeffrey Hatfield, Ph.D.
Dr. Jeff Hatfield's duties include field and statistical research on U.S. wildlife and habitats, review of study plans and manuscripts, experimental design, statistical consulting with wildlife biologists, and data analysis.
Current research consists of monitoring growth and survival of Hawaiian trees, monitoring regeneration and restoration of vegetation in Texas, monitoring herbivory in National Parks of the National Capital Region, and studies of maternal-effects and Medea genes in snails and mammals.
Recent Accomplishments
Education
- Ph.D. 1986. Biostatistics (focus: theoretical ecology & genetics). The Ohio State University, Columbus, Ohio.
- M.A.S. 1982. Applied Statistics (focus: frequentist statistics). The Ohio State University, Columbus, Ohio.
- M.S. 1981. Zoology (focus: aquatic ecology & genetics). Miami University, Oxford, Ohio.
- B.A. 1979. Zoology and Mathematics & Statistics (double major). Miami University, Oxford, Ohio.
Professional Studies/Experience
Mentorship/Outreach
Professional societies/affiliations/committees/editorial boards
Honors, awards, recognition, elected offices
Scientific/Oral Presentations, Abstracts
Science and Products
Filter Total Items: 54
Effects of rearing treatment on the behavior of captive whooping cranes (Grus americana) Effects of rearing treatment on the behavior of captive whooping cranes (Grus americana)
Small founder populations of whooping cranes are managed to maximize egg production for the purpose of reintroducing young to the wild. This results in an excessive number of hatched chicks that cannot be naturally reared by parents. Hand-rearing techniques have been developed to raise the additional hatches. However, hand rearing may affect the behavior of the birds and their chances of
Authors
M.D. Kreger, I. Estevez, Jeff S. Hatfield, G.F. Gee
Houston toad (Bufo houstonensis) in Bastrop County, Texas: need for protecting multiple subpopulations Houston toad (Bufo houstonensis) in Bastrop County, Texas: need for protecting multiple subpopulations
No abstract available.
Authors
Jeff S. Hatfield, A.H. Price, D.D. Diamond, C.D. TRUE
Golden-cheeked Warbler (Dendroica chrysoparia) in Central Texas: importance of dispersal toward persistence in a metapopulation Golden-cheeked Warbler (Dendroica chrysoparia) in Central Texas: importance of dispersal toward persistence in a metapopulation
No abstract available.
Authors
M.W. Alldredge, Jeff S. Hatfield, D.D. Diamond, C.D. TRUE
Species Conservation and Management: Case Studies Species Conservation and Management: Case Studies
This edited volume is a collection of population and metapopulation models for a wide variety of species, including plants, invertebrates, fishes, amphibians, reptiles, birds, and mammals. Each chapter of the book describes the application of RAMAS GIS 4.0 to one species, with the aim of demonstrating how various life history characteristics of the species are incorporated into the model...
Authors
H.R. Akcakaya, M.A. Burgman, O. Kindvall, C.C. Wood, P. Sjogren-Gulve, Jeff S. Hatfield, M.A. McCarthy
Normality of raw data in general linear models: The most widespread myth in statistics Normality of raw data in general linear models: The most widespread myth in statistics
In years of statistical consulting for ecologists and wildlife biologists, by far the most common misconception we have come across has been the one about normality in general linear models. These comprise a very large part of the statistical models used in ecology and include t tests, simple and multiple linear regression, polynomial regression, and analysis of variance (ANOVA) and...
Authors
Marc Kery, Jeff S. Hatfield
Demographic analysis from summaries of an age-structured population Demographic analysis from summaries of an age-structured population
Demographic analyses of age-structured populations typically rely on life history data for individuals, or when individual animals are not identified, on information about the numbers of individuals in each age class through time. While it is usually difficult to determine the age class of a randomly encountered individual, it is often the case that the individual can be readily and...
Authors
William A. Link, J. Andrew Royle, Jeff S. Hatfield
Science and Products
Filter Total Items: 54
Effects of rearing treatment on the behavior of captive whooping cranes (Grus americana) Effects of rearing treatment on the behavior of captive whooping cranes (Grus americana)
Small founder populations of whooping cranes are managed to maximize egg production for the purpose of reintroducing young to the wild. This results in an excessive number of hatched chicks that cannot be naturally reared by parents. Hand-rearing techniques have been developed to raise the additional hatches. However, hand rearing may affect the behavior of the birds and their chances of
Authors
M.D. Kreger, I. Estevez, Jeff S. Hatfield, G.F. Gee
Houston toad (Bufo houstonensis) in Bastrop County, Texas: need for protecting multiple subpopulations Houston toad (Bufo houstonensis) in Bastrop County, Texas: need for protecting multiple subpopulations
No abstract available.
Authors
Jeff S. Hatfield, A.H. Price, D.D. Diamond, C.D. TRUE
Golden-cheeked Warbler (Dendroica chrysoparia) in Central Texas: importance of dispersal toward persistence in a metapopulation Golden-cheeked Warbler (Dendroica chrysoparia) in Central Texas: importance of dispersal toward persistence in a metapopulation
No abstract available.
Authors
M.W. Alldredge, Jeff S. Hatfield, D.D. Diamond, C.D. TRUE
Species Conservation and Management: Case Studies Species Conservation and Management: Case Studies
This edited volume is a collection of population and metapopulation models for a wide variety of species, including plants, invertebrates, fishes, amphibians, reptiles, birds, and mammals. Each chapter of the book describes the application of RAMAS GIS 4.0 to one species, with the aim of demonstrating how various life history characteristics of the species are incorporated into the model...
Authors
H.R. Akcakaya, M.A. Burgman, O. Kindvall, C.C. Wood, P. Sjogren-Gulve, Jeff S. Hatfield, M.A. McCarthy
Normality of raw data in general linear models: The most widespread myth in statistics Normality of raw data in general linear models: The most widespread myth in statistics
In years of statistical consulting for ecologists and wildlife biologists, by far the most common misconception we have come across has been the one about normality in general linear models. These comprise a very large part of the statistical models used in ecology and include t tests, simple and multiple linear regression, polynomial regression, and analysis of variance (ANOVA) and...
Authors
Marc Kery, Jeff S. Hatfield
Demographic analysis from summaries of an age-structured population Demographic analysis from summaries of an age-structured population
Demographic analyses of age-structured populations typically rely on life history data for individuals, or when individual animals are not identified, on information about the numbers of individuals in each age class through time. While it is usually difficult to determine the age class of a randomly encountered individual, it is often the case that the individual can be readily and...
Authors
William A. Link, J. Andrew Royle, Jeff S. Hatfield