Subject Specialists

This is a list of ERS specialists by topic. For more information on these topics please contact the specialists listed below or browse our topics. The ERS staff directory has a complete list of contacts.

Subject Specialist Email Phone
Animal Products
Animal Production & Marketing Issues Keithly Jones kjones@ers.usda.gov 202-694-5172
Seanicaa Edwards Seanicaa.Edwards@ers.usda.gov 202-294-5333
Aquaculture Sean Ramos Sean.Ramos@ers.usda.gov 202-694-5443
Cattle & Beef Seanicaa Edwards Seanicaa.Edwards@ers.usda.gov 202-294-5333
Keithly Jones kjones@ers.usda.gov 202-694-5172
Dairy Jerry Cessna jgcessna@ers.usda.gov 202-694-5171
Jonathan Law jonathan.law@ers.usda.gov 202-694-5544
Hogs & Pork Mildred Haley mhaley@ers.usda.gov 202-694-5176
Poultry & Eggs David Harvey djharvey@ers.usda.gov 202-694-5177
Alex Melton awmelton@ers.usda.gov 202-694-5409
Sean Ramos Sean.Ramos@ers.usda.gov 202-694-5443
Sheep, Lamb & Mutton Keithly Jones kjones@ers.usda.gov 202-694-5172
Crops
Corn Thomas Capehart tcapehart@ers.usda.gov 202-694-5313
Cotton & Wool Leslie Meyer lmeyer@ers.usda.gov 202-694-5307
Stephen MacDonald stephenm@ers.usda.gov 202-694-5305
Fruit & Tree Nuts Agnes Perez acperez@ers.usda.gov 202-694-5255
Rice Nathan Childs nchilds@ers.usda.gov 202-694-5292
Soybeans & Oil Crops Mark Ash mash@ers.usda.gov 202-694-5289
Shelbi Knisley shelbi.knisley@ers.usda.gov 202-694-5490
Sugar & Sweeteners Michael McConnell michael.mcconnell@ers.usda.gov 202-694-5184
Vegetables & Pulses Travis Minor TRAVIS.MINOR@ers.usda.gov (202) 694-5333
Wheat Jennifer Bond jkbond@ers.usda.gov 202-694-5326
Farm Economy
Agricultural Baseline Projections Erik O'Donoghue eodonoghue@ers.usda.gov 202-694-5585
Agricultural Research and Productivity Paul Heisey pheisey@ers.usda.gov 202-694-5526
Sun Ling Wang slwang@ers.usda.gov 202-694-5460
Beginning & Disadvantaged Farmers Robert Williams williams@ers.usda.gov 202-694-5053
James Williamson jwilliamson@ers.usda.gov 202-694-5539
Bioenergy Thomas Capehart tcapehart@ers.usda.gov 202-694-5313
Commodity Outlook Mark Jekanowski mjekanowski@ers.usda.gov 202-694-5152
Farm & Commodity Policy Joseph Cooper jcooper@ers.usda.gov 202-694-5482
Erik O'Donoghue eodonoghue@ers.usda.gov 202-694-5585
Ashley Hungerford ashley.e.hungerford@ers.usda.gov 202-694-5154
Anne Effland aeffland@ers.usda.gov 202-694-5319
Farm Household Well-being Daniel Prager daniel.prager@ers.usda.gov 202-694-5528
Farm Labor Thomas Hertz thertz@ers.usda.gov 202-694-5416
Farm Sector Income & Finances Farm Income Team farmincometeam@ers.usda.gov
Jeffrey Hopkins jeffrey.w.hopkins@ers.usda.gov 202-694-5121
Farm Structure and Organization Robert Hoppe rhoppe@ers.usda.gov 202-694-5572
Doris Newton dnewton@ers.usda.gov 202-694-5619
Federal Tax Issues James Williamson jwilliamson@ers.usda.gov 202-694-5539
Land Use, Land Value & Tenure Daniel Bigelow daniel.bigelow@ers.usda.gov 202-694-5340
Farm Practices & Management
Biotechnology Seth J. Wechsler seth.wechsler@ers.usda.gov 202-694-5514
Chemical Inputs Richard Nehring rnehring@ers.usda.gov 202-694-5618
Crop & Livestock Practices Nigel Key nkey@ers.usda.gov 202-694-5567
Irrigation & Water Use Glenn Schaible schaible@ers.usda.gov 202-694-5549
Marcel Aillery maillery@ers.usda.gov 202-694-5511
Risk Management Erik O'Donoghue eodonoghue@ers.usda.gov 202-694-5585
Food & Nutrition Assistance
Child Nutrition Programs Joanne Guthrie jguthrie@ers.usda.gov 202-694-5373
Food & Nutrition Assistance Research Victor Oliveira victoro@ers.usda.gov 202-694-5434
Food Security in the U.S. Alisha Coleman-Jensen acjensen@ers.usda.gov 202-694-5456
Christian Gregory cgregory@ers.usda.gov 202-694-5132
Matthew Rabbitt matthew.rabbitt@ers.usda.gov 202-694-5593
Poverty & Income Volatility Laura Tiehen ltiehen@ers.usda.gov 202-694-5417
Supplemental Nutrition Assistance Program (SNAP) John Kirlin jkirlin@ers.usda.gov 202-694-5398
WIC Program Victor Oliveira victoro@ers.usda.gov 202-694-5434
Food Choices & Health
Diet Quality & Nutrition Biing-Hwan Lin blin@ers.usda.gov 202-694-5458
Lisa Mancino lmancino@ers.usda.gov 202-694-5563
Education, Information & Labeling Jessica Todd jtodd@ers.usda.gov 202-694-5363
Food Access Michele Ver Ploeg sverploeg@ers.usda.gov 202-694-5372
Food Consumption & Demand Biing-Hwan Lin blin@ers.usda.gov 202-694-5458
Abigail Okrent aokrent@ers.usda.gov 202-694-5206
Obesity Lisa Mancino lmancino@ers.usda.gov 202-694-5563
Food Markets & Prices
Consumer Price Index (CPI) Annemarie Kuhns amkuhns@ers.usda.gov 202-694-5351
David Levin david.levin@ers.usda.gov 202-694-5353
Food Prices, Expenditures & Costs Patrick Canning pcanning@ers.usda.gov 202-694-5341
Hayden Stewart hstewart@ers.usda.gov 202-694-5394
Annemarie Kuhns amkuhns@ers.usda.gov 202-694-5351
Howard Elitzak helitzak@ers.usda.gov 202-694-5375
Food Service Industry Hayden Stewart hstewart@ers.usda.gov 202-694-5394
Local Foods Stephen Martinez martinez@ers.usda.gov 202-694-5378
Stephen Vogel svogel@ers.usda.gov 202-694-5368
Processing & Marketing Stephen Martinez martinez@ers.usda.gov 202-694-5378
Retailing & Wholesaling Howard Elitzak helitzak@ers.usda.gov 202-694-5375
David Levin david.levin@ers.usda.gov 202-694-5353
Food Safety
Foodborne Illness Sandra Hoffmann shoffmann@ers.usda.gov 202-694-5354
Labeling & Information Policy Fred Kuchler fkuchler@ers.usda.gov 202-694-5468
Market Incentives & Government Regulation Michael Ollinger ollinger@ers.usda.gov 202-694-5454
Response to Incidents Fred Kuchler fkuchler@ers.usda.gov 202-694-5468
International Markets & Trade
Countries & Regions      
Brazil Constanza Valdes cvaldes@ers.usda.gov 202-694-5225
China Fred Gale fgale@ers.usda.gov 202-694-5215
European Union Kari Heerman keheerman@ers.usda.gov 202-694-5250
European Union Lorraine Mitchell lmitchel@ers.usda.gov 202-694-5234
India Maurice Landes mlandes@ers.usda.gov 202-694-5145
Japan John Dyck jdyck@ers.usda.gov 202-694-5221
NAFTA, Canada & Mexico Steven Zahniser zahniser@ers.usda.gov 202-694-5230
South Korea John Dyck jdyck@ers.usda.gov 202-694-5221
Food Safety & International Markets Jean Buzby jbuzby@ers.usda.gov 202-694-5370
Peyton Ferrier pferrier@ers.usda.gov 202-694-5224
Global Food Markets Birgit Meade bmeade@ers.usda.gov 202-694-5159
Global Food Security Stacey Rosen slrosen@ers.usda.gov 202-694-5164
Birgit Meade bmeade@ers.usda.gov 202-694-5159
Macroeconomics & Agriculture Kari Heerman keheerman@ers.usda.gov 202-694-5250
Trade Policy & World Trade Organization (WTO) Shawn Arita ssarita@ers.usda.gov 202-694-5102
Tani Lee tani.lee@ers.usda.gov 202-694-5282
U.S. Agricultural Trade Bryce Cooke bryce.cooke@ers.usda.gov 202-694-5257
Natural Resources & Environment
Climate Change Elizabeth Marshall emarshall@ers.usda.gov 202-694-5571
Conservation Programs Roger Claassen claassen@ers.usda.gov 202-694-5473
Environmental Quality Marc Ribaudo mribaudo@ers.usda.gov 202-694-5488
Organic Agriculture Catherine Greene cgreene@ers.usda.gov 202-694-5541
Rural Economy & Population
Business & Industry Tim Wojan twojan@ers.usda.gov 202-694-5419
David McGranahan dmcg@ers.usda.gov 202-694-5356
Employment & Education Thomas Hertz thertz@ers.usda.gov 202-694-5416
Alexander Marré amarre@ers.usda.gov 202-694-5338
Natural Amenities David McGranahan dmcg@ers.usda.gov 202-694-5356
Population & Migration John Cromartie jbc@ers.usda.gov 202-694-5421
Rural Classifications John Cromartie jbc@ers.usda.gov 202-694-5421
Timothy Parker tparker@ers.usda.gov 202-694-5435
Rural Poverty & Well-being Tracey Farrigan tfarrigan@ers.usda.gov 202-694-5489