April 12 2011

12:00 LSB 2320

Ecolunch: John Sperry
Department of Biology University of Utah

Adventures in Allometry: Hydraulic Architecture of Trees and Metabolic Scaling Theory


My lab is involved in a collaborative project aimed at refining and testing metabolic scaling theory in woody plants. The premise is that vascular function co-limits productivity. Therefore, the allometry of productivity can be predicted from the allometry of vascular function and body mass. We've tested our species' specific model in two functional tree types. The model did a good job of predicting the relative and absolute scaling of water consumption with tree size. The key assumption that water use scales isometrically with biomass growth was also validated. However, the new model rules out 3/4 scaling within species, contradicting original predictions.











































































































































































































































































































































































































































































































































































































this is idtest: