Oral Session #39: Theoretical Ecology.

Presiding: D.E. Busch, USGS- Biological Resources Division, Portland, OR.
Tuesday, August 8, 2000
8:00 AM to 12:15 PM
Superior Room - Cliff Lodge

8:00 AM	Global distribution of urban ecosystems. DECKER, E.H. and B.T. MILNE, F.A. SMITH, S.M. ELLIOTT
8:15 AM	A model for automatic species keying. LEON, B.F.
8:30 AM	Energetic scaling of ontogenetic growth and allocation: Testing predictions of a general allometric model in vascular plants. ENQUIST, B.J. and G.B. WEST, J.H. BROWN
8:45 AM	Understanding the ecological determinants of food-chain length: Recent advances. POST, D.M.
9:00 AM	The role of habitat productivity and plant structure in the determination of herbivore size and the number of trophic levels in terrestrial communities. AYAL, Y.
9:15 AM	Adaptive feeding across environmental gradients. RICHARDS, S.A. and W.G. WILSON
9:30 AM	Population persistence in rivers. SPEIRS, D.C. and W.S.C. GURNEY
9:45 AM	Contingency and predictability in wetland communities: Effects of environment, history, and spatial scale. CHASE, J.M.
10:00 AM	Break
10:15 AM	Inferring process from pattern: Negative frequency-dependence and the importance of spatial scale. MOLOFSKY, J. and J.D. BEVER, J. ANTONOVICS
10:30 AM	Allee effects can promote species coexistence in a spatial model. FERDY, J. and J. MOLOFSKY
10:45 AM	Fractals in ecology: Where is the ecology? LI, B.
11:00 AM	The general relationship between species-area curves, diversity indices and species abundance distributions: A multifractal analysis. BORDA-DE-ĮGUA, L. and S.P. HUBBELL, M.K. MCALLISTER
11:15 AM	On the shape of species richness xurves: Area, latitude, disturbance, and productivity. DIAL, R.
11:30 AM	Multiple mechanism effects on the shape of patch-occupancy frequency distributions: Implications for their use as community descriptors. MCGEOCH, M.A.
11:45 AM	Effects of mortality on competitive coexistence and coevolution. ABRAMS, P.A.
12:00 PM	Decaying reservoir competence and lyme disease ecology. SCHAUBER, E.M. and R.S. OSTFELD