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Oak Ridge National Environmental Research Park

Research Park Notes
Issue 22, October 2, 2001

Welcome to Research Park Notes! Look for tidbits of information on National Environmental Research Park activities, observations, and users every couple of weeks. To provide newsletter input, request additional information, make comments, or add/delete mailing list names, contact the Oak Ridge National Laboratory Area Manager, Pat Parr.


Stream Ecosystem Responses to Forest Leaf Emergence

A paper presenting the results of research on the effects of seasonal reductions in light resulting from emergence of leaves in spring on stream primary and secondary production was recently published in the journal Ecology (see citation in publication section). The paper was based on a study by Walter Hill and Pat Mulholland (Oak Ridge National Laboratory, Environmental Sciences Division) and Erich Marzolf (a former Environmental Sciences Division post-doc) conducted in two Oak Ridge National Environmental Research Park streams, Walker Branch and Upper White Oak Creek. The study showed that stream algal productivity was sharply reduced in May in response to sharp reductions in light levels reaching the streams following leaf emergence in the deciduous forest. In addition, there was a cascading effect of the algal productivity declines up the food chain. Herbivore growth rates declined in synchrony with the reductions in light and algal productivity. This research further highlights the strong effects of forests on the streams that flow through them. It is the latest in a long history of ecosystem research on Oak Ridge Reservation streams. For more information on stream research at ORNL, see and


Native Grass Restoration on the Oak Ridge Reservation

Native grass information prepared by Research Park summer intern, Kari Cohen, is now available on a web site. Check it out at By the way, Kari, a graduate student at the University of Maryland, reports he is fine. He napped right through the tornado which was ripping through the University of Maryland campus about a mile from his apartment.


Hill, W. R., P. J. Mulholland, and E. R. Marzolf. 2001. Stream ecosystem responses to forest leaf emergence in spring. Ecology 82:2306-2319.


DOE Land Use Planning Initiative

The first working meeting of the DOE Land Use Planning Focus Group was Friday, September 28. The Land Use Planning Focus Group is reviewing options for uses of federal land that may no longer be required for DOE mission. Town hall-type meetings are also planned throughout the process to gather input from the public. Those dates have not yet been set but will be highlighted here once available.


Environmental Search Engine has launched an environmental search engine for neighborhood eco-reports. The “Care2 Get Local” system provides zip code-based neighborhood reports on over 70 topics, from pollution to hiking trails and organic farms. See


October 3-6, 2001 – Natural Areas Association Annual Conference at Cape Canaveral, Florida, on “Searching for a Natural Balance.” More info:

November 6-8, 2001 - SAMAB Annual Fall Conference “From Issues to Action: Opportunities for Stewardship in the Southern Appalachians,” Gatlinburg, Tennessee. For more information, visit or call 865-974-4583.

November 12-15, 2001 – Annual Water Resources Conference, Hyatt Regency Albuquerque, Albuquerque, New Mexico. More info: Contact AWRA Headquarters [(540) 687-8390] or

November 26-28, 2001 – Southern Forest Science Conference, Contributions of Forest Research to Sustainable Forestry, Atlanta, Georgia. More info: or call (828) 257-4302.

December 6-7, 2001 – 2nd National Conference on Science, Policy, and the Environment: “Sustainable Communities: Science and Solutions by The National Council for Science and the Environment ,” Washington, D.C., Smithsonian National Museum of Natural History & Renaissance Washington. For more information, see JOIN leading scientists and policy makers from around the world to discuss how science can contribute to solutions for achieving sustainable communities, locally and globally.

March 15-17, 2002 – Appalachian Studies Association 25th Annual Conference, Unicoi State Park, Georgia. Proposals due September 28 by snail mail only. Patricia Beaver,,

April 3-5, 2002 – Southeast Exotic Pest Plant Annual Meeting, Nashville, Tennessee.

April 10-13, 2002 – Association of Southeastern Biologists Annual Meeting, Appalachian State University, Boone, North Carolina. For more information, see

April 23-27, 2002 – International Association for Landscape Ecology, United States Regional Association, Lincoln, Nebraska. Theme is “Landscapes in Transition: Cultural Drivers and Natural Constraints.” For more information, see

The Oak Ridge National Environmental Research Park was designated by the Department of Energy in 1980 and is one of a network of seven National Environmental Research Parks. It is an Oak Ridge National Laboratory User Facility. The Oak Ridge National Environmental Research Park was designated an international biosphere reserve in 1989. It is also a unit member of the Southern Appalachian Biosphere Reserve and part of the Southern Appalachian Man and the Biosphere (SAMAB) Cooperative. More information on the Oak Ridge National Environmental Research Park can be found on the website at:

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Last Modified: October 22, 2001
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