( rk to determine a value for the service...)Ecosystem services and invasive species

rk to determine a value for the services this urban forest provides to the community. According to Cappellato, the Overton park stores a volume of carbon worth $40,000 ?$200,000 and adds more storage space through growth, worth $2,000 ?$ 10,000 each year. Cappellato and Bohnert plan to study the park further, as well as expand their study to urban forests throughout Memphis. She will discuss her work during a poster session on landscape and ecosystem ecology.

Assessing economic and ecological costs of exurbanization of forest and farmland at the wildland-urban interface on Tennessee's southern Cumberland Plateau. Tuesday, August 8, 2006, 8 ?11:30 AM, Chickasaw, Cook Convention Center

The southern Cumberland Plateau supports some of the most biologically diverse ecosystems in North America, but much of the land is privately owned and not under any zoning growth restrictions. Deborah McGrath and Ken Smith (Sewanee - University of the South) and their students are studying the economic and ecological costs of two models of development in the region: converting upland forest to low-density homes and the subdivision of valley farmlands. Using tax parcel maps and GIS, the group compared the history of land use, sale price and development trajectories for two 1,500-acre adjacent land tracts. McGrath will discuss their findings during her presentation in contributed oral session 25: Urban Ecology I.

Freshwater mussels in the Hatchie River in west TennesseeTuesday August 8, 2006, 5 ?6:30 PM, Exhibit Hall, Cook Convention Center

The Hatchie River runs 220 miles through western Tennessee. David Kesler, Naomi Van Tol (Rhodes College), and colleagues from the Tennessee Wildlife Resource Agency returned to the Hatchie River some 25 years after other scientists to document changes in the freshwater mussels.

"It seems only appropriate that while we are all concerned about loss of biodiversity in the rainforests and coral reefs
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Source:Ecological Society of America

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