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
The effects of captive rearing on the behavior of newly-released whooping cranes (Grus americana) The effects of captive rearing on the behavior of newly-released whooping cranes (Grus americana)
Rearing treatments used in captivity to prepare animals for reintroduction to the wild may have a profound effect on behavior and, possibly, affect their survival after reintroduction. This study examined the behaviors of captive-reared whooping cranes (Grus americana) upon their release in Florida to determine if rearing treatments may affect the behavior of the birds and how these...
Authors
M.D. Kreger, Jeff S. Hatfield, I. Estevez, G.F. Gee, D.A. Clugston
Efficacy of selected coccidiostats in sandhill cranes (Grus canadensis) following challenge Efficacy of selected coccidiostats in sandhill cranes (Grus canadensis) following challenge
The anticoccidial efficacy of amprolium, clazuril, and monensin were studied in sandhill cranes (Grus canadensis) infected with a mixture of Eimeria spp. oocysts. Five groups of four 1-day-old sandhill crane chicks were maintained on a crumbled ration containing no coccidiostat, amprolium at 2.2 ppm, clazuril at 1.1 ppm, clazuril at 5.5 ppm, or monensin at 99 ppm. After 2 wk on their...
Authors
James W. Carpenter, Meliton N. Novilla, Jeffrey Hatfield
Modeling birds: an overview Modeling birds: an overview
No abstract available.
Authors
Jeff S. Hatfield
Detecting warning signs of trouble within population fluctuations: using capture-recapture modeling to uncover changes in population dynamics leading to declines Detecting warning signs of trouble within population fluctuations: using capture-recapture modeling to uncover changes in population dynamics leading to declines
An intensive mark-recapture/resighting program has been carried out on the Roseate Terns nesting at Falkner Island, Connecticut, since the late 1980s as part of a regional study of the metapopulation dynamics and ecology of the endangered Northwest Atlantic breeding population of this species. Substantial losses of tern eggs and chicks to predation at this colony site began in 1996 when...
Authors
J. A. Spendelow, J.D. Nichols, W. L. Kendall, J.E. Hines, Jeff S. Hatfield, I.C.T. Nisbet
Contaminant exposure and reproductive success of Ospreys (Pandion haliaetus) nesting in Chesapeake Bay regions of concern Contaminant exposure and reproductive success of Ospreys (Pandion haliaetus) nesting in Chesapeake Bay regions of concern
The Chesapeake Bay osprey population has more than doubled in size since restrictions were placed on the production and use of DDT and other toxic organochlorine contaminants in the 1970s. Ospreys are now nesting in the most highly polluted portions of the Bay. In 2000 and 2001, contaminant exposure and reproduction were monitored in ospreys nesting in regions of concern, including...
Authors
Barnett A. Rattner, P. C. McGowan, N. H. Golden, Jeff S. Hatfield, P. C. Toschik, R.F. Lukei, R. C. Hale, I. Schmitz-Afonso, C.P. Rice
Contribution of natural history collection data to biodiversity assessment in national parks Contribution of natural history collection data to biodiversity assessment in national parks
There has been mounting interest in the use of museum and herbaria collections to assess biodiversity; information is often difficult to locate and access, however, and few recommendations are available for effectively using natural history collections. As part of an effort to inventory vertebrates and vascular plants in U.S. national parks, we searched manually and by computer for...
Authors
A.F. O'Connell, A.T. Gilbert, Jeff S. Hatfield
Science and Products
Filter Total Items: 54
The effects of captive rearing on the behavior of newly-released whooping cranes (Grus americana) The effects of captive rearing on the behavior of newly-released whooping cranes (Grus americana)
Rearing treatments used in captivity to prepare animals for reintroduction to the wild may have a profound effect on behavior and, possibly, affect their survival after reintroduction. This study examined the behaviors of captive-reared whooping cranes (Grus americana) upon their release in Florida to determine if rearing treatments may affect the behavior of the birds and how these...
Authors
M.D. Kreger, Jeff S. Hatfield, I. Estevez, G.F. Gee, D.A. Clugston
Efficacy of selected coccidiostats in sandhill cranes (Grus canadensis) following challenge Efficacy of selected coccidiostats in sandhill cranes (Grus canadensis) following challenge
The anticoccidial efficacy of amprolium, clazuril, and monensin were studied in sandhill cranes (Grus canadensis) infected with a mixture of Eimeria spp. oocysts. Five groups of four 1-day-old sandhill crane chicks were maintained on a crumbled ration containing no coccidiostat, amprolium at 2.2 ppm, clazuril at 1.1 ppm, clazuril at 5.5 ppm, or monensin at 99 ppm. After 2 wk on their...
Authors
James W. Carpenter, Meliton N. Novilla, Jeffrey Hatfield
Modeling birds: an overview Modeling birds: an overview
No abstract available.
Authors
Jeff S. Hatfield
Detecting warning signs of trouble within population fluctuations: using capture-recapture modeling to uncover changes in population dynamics leading to declines Detecting warning signs of trouble within population fluctuations: using capture-recapture modeling to uncover changes in population dynamics leading to declines
An intensive mark-recapture/resighting program has been carried out on the Roseate Terns nesting at Falkner Island, Connecticut, since the late 1980s as part of a regional study of the metapopulation dynamics and ecology of the endangered Northwest Atlantic breeding population of this species. Substantial losses of tern eggs and chicks to predation at this colony site began in 1996 when...
Authors
J. A. Spendelow, J.D. Nichols, W. L. Kendall, J.E. Hines, Jeff S. Hatfield, I.C.T. Nisbet
Contaminant exposure and reproductive success of Ospreys (Pandion haliaetus) nesting in Chesapeake Bay regions of concern Contaminant exposure and reproductive success of Ospreys (Pandion haliaetus) nesting in Chesapeake Bay regions of concern
The Chesapeake Bay osprey population has more than doubled in size since restrictions were placed on the production and use of DDT and other toxic organochlorine contaminants in the 1970s. Ospreys are now nesting in the most highly polluted portions of the Bay. In 2000 and 2001, contaminant exposure and reproduction were monitored in ospreys nesting in regions of concern, including...
Authors
Barnett A. Rattner, P. C. McGowan, N. H. Golden, Jeff S. Hatfield, P. C. Toschik, R.F. Lukei, R. C. Hale, I. Schmitz-Afonso, C.P. Rice
Contribution of natural history collection data to biodiversity assessment in national parks Contribution of natural history collection data to biodiversity assessment in national parks
There has been mounting interest in the use of museum and herbaria collections to assess biodiversity; information is often difficult to locate and access, however, and few recommendations are available for effectively using natural history collections. As part of an effort to inventory vertebrates and vascular plants in U.S. national parks, we searched manually and by computer for...
Authors
A.F. O'Connell, A.T. Gilbert, Jeff S. Hatfield