Winter soil warming in arid lands: effects on biological soil crusts and ecosystem processes, 3:40 p.m.
David Housman, USGS Southwest Biological Science Center, Canyonlands Research Station, Moab, Utah
Parent session: COS 102 - Arid ecosystem ecology 1:30-5:00 p.m.
L-14, Lobby Level
Biological soil crusts are significant sources of fixed carbon and nitrogen in arid land ecosystems. The authors began a study in southeast Utah to examine how increased infrared heating would affect carbon and nitrogen availability from areas covered with lichen and moss soil crusts during day- and night-time hours. This presentation will include early findings on the effect of future climate warming on carbon and nitrogen availability in these ecosystems.
Friday, Aug. 11
A comparison of the recent invasion histories of North American and African Great Lake systems: has anything been learned?, 9:20 a.m.
Jacoby Carter, USGS National Wetlands Research Center, Lafayette, La.
Parent session: COS 104 - Invasive species VII: prevention, control, and models, 8:00-11:30 a.m.
Ballroom E, Ballroom Level
The author will compare the Great Lake systems in North America and East Africa with respect to invasive species -- routes of invasions and introductions, which species were successful and some that were not, and efforts to control invasive species. Water hyacinth (Eichhornia crassipes), nutria (Myocastor coypus), freshwater crawfish (infraorder Astacidea), and top level fish p
Contact: Diane Noserale
United States Geological Survey