Oral Session #23: Soil Ecology.

Presiding: W.J. Dress, Ohio State University.
Monday, August 7, 2000
8:00 AM to 11:45 AM
Cottonwood Room I - Sports Event Center

8:00 AM	Distribution and diversity of soil Crenarchaeota in the front range of the Rocky Mountains. OLINE, D.K.
8:15 AM	The importance of allelopathy in mediating competition between naturally co-occurring bacterial strains. KRUKONIS, G.P. , F.M. COHAN
8:30 AM	What is the extent of niche diversity in soil protozoa? ADL, S.M. , D.C. COLEMAN
8:45 AM	How stable are nematode populations in the Antarctic Dry Valley soil ecosystem? PORAZINSKA, D.L. , D.H. WALL, R.A. VIRGINIA
9:00 AM	Climate change effects on enchytraeid worms (Oligochaeta) and C release in tundra soils. COLE, L. , R.D. BARDGETT, P. INESON
9:15 AM	Differences in nitrogen uptake modified by microbiotic soil crusts and AM fungi for herbs in a xeric Florida shrubland. HAWKES, C.V.
9:30 AM	Changes in microbial community composition and carbon substrate utilization due to land use change in a tropical soil. WALDROP, M.P. , M.K. FIRESTONE, T.C. BALSER
9:45 AM	Soil microorganisms and fatty acid methyl ester profiles along a nitrogen deposition gradient. SIGUENZA, C. , E.B. ALLEN, M.F. ALLEN, D.E. CROWLEY
10:00 AM	Break
10:15 AM	The role of plant species in the structure and function of soil microbial communities: An experimental evaluation. BROUGHTON, L.C. , K.L. GROSS
10:30 AM	N source diversity promotes plant community diversity under N-limiting conditions. REYNOLDS, H.L. , B.L. FOSTER
10:45 AM	Feedbacks between plant and soil commmunities. INNES, L. , R.D BARDGETT
11:00 AM	Coexistence of competitors: Evidence of a critical role of soil community dynamics. BEVER, J.D. , K.M. WESTOVER
11:15 AM	Patterns of below-ground microbial community development in primary succession: A study of recently deglaciated terrain in Alaska and New Zealand. BARDGETT, R.D. , D.A. WARDLE, L. WALKER
11:30 AM	Effects of above- and below-ground fire on soil properties and cattail growth potential in a northern Everglades marsh. SMITH, S.M. , S. NEWMAN, J.A. LEEDS, P.B. GARRETT