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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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Hart Welsh

Research Wildlife Biologist
1700 Bayview Drive
Arcata, CA 95521
Phone: 707-825-2956
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Current Research

Hartwell Welsh is conducting research aimed at preserving these unique creatures and highlighting their importance within ecosystems.

Past Research

Welsh has led studies on the use of amphibians as indicators of both terrestrial and aquatic ecosystem status. Amphibians are extremely sensitive to relatively small changes in microclimate and are habitat specialists highly adapted to specific environmental features. These characteristics allow them to serve as veritable barometers of ecosystem health and status. Most recently, Welsh developed a blueprint for using amphibians in Pacific Northwest streams to monitor their potential to support ecological services, such as production of commercially valuable salmonid species.

In other studies, Welsh developed habitat models for many forest amphibians and reptiles of the Pacific Northwest. These models provide managers with a description of the habitat requirements of these species, which allow the managers to address human-caused stresses such as timber harvest and water diversions. One of Welsh�s latest models was created using Forest Inventory and Analysis (FIA) data, a unique approach that was not initially envisioned within the FIA Program.

Professional Organizations

  • Society for Conservation Biology, Member
  • Society for the Study of Amphibians and Reptiles, Member
  • American Society of Ichthyology and Herpetology, Member

Featured Publications & Products

Publications & Products


Last updated on : 03/12/2014