Dick S. Hammerschlag

USGS Patuxent Wildlife Research Center
11510 American Holly Drive
Laurel, MD 20708-4017

Telephone: 301-497-5555

Fax: 301-497-5744

Email: Richard_Hammerschlag@usgs.gov 

Emeritus Ecologist/Volunteer

Primary Responsibilities: 
Manage and participate in study projects involving urban landscapes in the vicinity of Washington, D.C.  Recent efforts have focused on the reconstructed freshwater tidal wetlands in the Anacostia watershed as well as invasive species.

Education/Training: 
BA Colgate University 1963 Botany

MS University of Maryland 1966 Plant pathology

Active Projects: 

Vegetation Monitoring at the Reconstructed Kingman Wetland (Anacostia Wetland Studies)

Ecology and control of Ranunculus ficaria in Rock Creek Park

Alternative designs to protect aquatic biota in urban environments

Technical assistance to National Capital Region, National Park Service - urban landscape ecology

Development of Patuxent long-term monitoring and ecological research project (PALMER)

Publications/Products: 

Anacostia Freshwater Tidal Reconstructed Wetlands

Syphax, Stephen and R.S. Hammerschlag, 1995.   The Reconstruction of Kenilworth Marsh, The Last Tidal Marsh in Washington, D.C. In Park Science.  15(1).

Carter, Virginia, N.B. Rybicki and R.S. Hammerschlag, 1991. Efects of Submersed Macrophytes on Dissolved Oxygen, pH and Temperature under Different Conditions of Wind, Tide and Bed Structure.In Fresh Water Ecology. 6(2): 121-133.

Hammerschlag, R. S. and J.L. Sherald, 1985. Traditional and Expanded Tree Pit Concepts. METRIA:5 Selecting and Preparing Sites for Urban Trees. pp.32-44.

Hammerschlag, R.S. and W.L. Sopstyle. 1975. Investigations of Remote Sensing for Early Detection of Dutch Elm Disease. In Remote Sensing of Earth Resources. 5:357-386.