Oral Session #19: Grassland Restoration.

Presiding: B.J. Wilsey, Texas A&M University, Commerce.
Monday, August 7, 2000
8:00 AM to 11:45 AM
Wasatch Room - Cliff Lodge

8:00 AM	Factors influencing invasion of southern Californian grasslands by the herbaceous perennial mediterranean climate exotic, Cynara cardunculus. DESIMONE, S.A.
8:15 AM	Using prescribed fire and nitrogen manipulation to control Melilotus officinalis and M. alba: Rocky Mountain National Park, WOLF, J.J. , S.W. BEATTY and T.R. SEASTEDT
8:30 AM	Physiological ecology of juvenile oaks: Implications for forest expansion in grasslands. DANNER, B.T. , A.K. KNAPP
8:45 AM	Changes in semi-desert grassland plant communities 10 years following cessation of grazing and reintroduction of fire. GEIGER, E.L. , G.R. MCPHERSON
9:00 AM	Sawdust addition reduces soil ammonium levels and promotes native grass growth in competition with exotic grasses. CORBIN, J.D. , C.M. D'ANTONIO
9:15 AM	Addition of sawdust to soils to enhance native grass persistence following removal of introduced nitrogen-fixing shrub. HAUBENSAK, K.A. , C.M. D'ANTONIO
9:30 AM	Natural resistance to cheatgrass invasion: The role of limiting resources. BECKSTEAD, J. , C.K. AUGSPURGER
9:45 AM	Species composition, species richness, and soil disturbance affect grassland susceptibility and response to invasion. DUKES, J.S.
10:00 AM	Break
10:15 AM	C3 woody plant invasion in a C4 grassland: Are grasses and shrubs functionally equivalent? MCCARRON, J.K. , A.K. KNAPP
10:30 AM	Evaluation of surface mine reforestation in south-central West Virginia . EDMONDS, S.N.
10:45 AM	Exotic species invasions over forty years of old field succession. MEINERS, S.J. , M.L. CADENASSO and S.T.A. PICKETT
11:00 AM	Competitive effects of an introduced species, Hieracium aurantiacum, on a native congener. HOWE, K.M.
11:15 AM	Relationship between Lythrum salicaria (purple loosestrife) abundance and vegetation characteristics in southeastern Minnesota wetlands. HAGER, H.A.
11:30 AM	Species richness does not always enhance productivity: Priority effects and competition for space in wetland plant communities. ENGELHARDT, K.A.M. , M.E. RITCHIE and J.A. KADLEC