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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Research Plant Ecologist

Carolyn H. Sieg

Research Plant Ecologist
2500 South Pine Knoll Drive
United States

Phone: 928-556-2151
Fax: 928-556-2130
Contact Carolyn H. Sieg

Current Research

Changing disturbance regimes, introduction of exotic species, and rarity of some native species in Western Forests present challenges for land managers. We need a better understanding of how to manage forests impacted by severe wildfires, whether beetle-infested areas present serious fire threats, and strategies for lessening the impact of exotic invasive species.

Research Interests

Plant community and fuels changes through time following severe wildfires and how spatial patterns in forests and regeneration are altered by such disturbances and subsequent management actions. Currently using physics-based fire behavior models to explore effects of disturbances such as bark beetle outbreaks and management practices on fire spread.

Past Research

Past research focused on northern Great Plains ecosystems and explored the role of natural processes such as fire in shaping ecosystems, and developing management options for introducing these processes into altered systems without severe impacts such as enhancing populations of exotic plant species. I also have extensive research experience with rare plants such as the federally listed western prairie fringed orchid.

Why This Research is Important

Co-author of a book on the historical ecology of eastern North Dakota. Co-author of four chapters in a book on conservation of rare and little-known species. co-author of a book chapter on exotic invasive plants.


  • Texas Tech University, Lubbock, Ph.D. Range and Wildlife Management (Fire Ecology) 1991
  • Colorado State University, Fort Collins, M.S. Rangeland Ecology 1981
  • Colorado State University, Fort Collins, B.S. Wildlife Biology 1975

Awards & Recognition

  • Certificate of Appreciation, 2010
    Customer Appreciation (Rocky Mountain Research Station)
  • Fellow Award--Society of Range Management, 2007
    For recognition of exceptional service to the Society and its programs in advancing the science and art of range-related resource management.
  • US Forest Service Research and Development , 2005
    For contributions to the development of the USDA Forest Service Interim Update of the RPA Assessment, including the biodiversity components
  • Top Hand Award--South Dakota Section of the Society for Range Management, 2001
    For outstanding contribution to the South Dakota section and parent organization.
  • Charles E. Bessey Award, 2000
    For outstanding regional scholarship and best natural science article. Awarded by The Center for Great Plains Studies for the paper: Recent biodiversity patterns in the Great Basin: implications for restoration and management.
  • Wildlife Professional of the year, 1999
    For year 1999
  • US Forest Service Research and Development, 1997
    For outstanding contribution to the Forest Service Research and Development strategic planning effort (U.S.Forest Service Research and Development).
  • US Forest Service Chief's Award, 1995
    Unit award for exceptional leadership, committment, and accomplishments in the conservation and recovery of threatened, endangered, and sensitive species


Research Highlights


Bark Beetles and Wildfires: New Tools Provide Insights

Bark beetles have affected millions of acres of western forests and sometimes contribute to highly unpredictable fire behavior. Two new models i ...


Insects Associated with Fire-injured Ponderosa Pine

Forest Service scientists examined various aspects of the interaction between fire injury and subsequent insect infestations. Different types of ...


Spatial patterns of ponderosa pine regeneration in high-severity burn patches

Over the past three decades, wildfires in Southwestern United States ponderosa pine forests have increased in size and severity, leaving large p ...


Last updated on : 02/26/2019