US Forest Service Research & Development
Contact Information
  • US Forest Service Research & Development
  • 1400 Independence Ave., SW
  • Washington, D.C. 20250-0003
  • 800-832-1355
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Mary Anne Sword Sayer

Research Plant Physiologist
2500 Shreveport Highway
Pineville, LA 71360
Phone: 318-473-7275
Contact Mary Anne Sword Sayer

Current Research

Of primary interest is to understand seasonal and long-term ecophysiological relationships among above-ground (i.e., photosynthesis, canopy light) and root/soil attributes (i.e., plant available water, seasonal root carbohydrate relations) that regulate loblolly and longleaf pine production. Crown physiology, leaf area dynamics, root production and distribution, and tree growth are studied in response to stand environment and silvicultural practices to determine how environmental variables such as prolonged drought and management tools such as prescribed fire control soil resource availability, carbon fixation and allocation, and forest sustainability.


  • University of Missouri, Ph.D. Forestry, 1991
  • University of Minnesota, M.S. Forestry, 1986
  • South Dakota State University, B.S. Biology, 1983

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Research Highlights


Tailoring Prescribed Fire for the Private Landowner

The fate of the Range-Wide Conservation Plan for Longleaf Pine will be determined by private landowners' willingness to commit to longleaf pine ...


Last updated on : 03/16/2015