Mario Siqueira

Education:
  1. Doctor of Philosophy in Civil and Environmental Engineering, December 2002, Duke University, Durham, North Carolina, USA.
  2. Post-doc., Nicholas School of the Environment and Earth Sciences, 2003-present, Duke University, Durham, North Carolina, USA.
Research accomplishments at Duke University:

    Ph.D Thesis:

  1. Siqueira, M., C.T. Lai, and G.G. Katul, 2001, "Estimating Scalar Sources, Sinks, and Fluxes in a Forest canopy using Lagrangian, Eulerian, and Hybrid Inverse Models", Journal of Geophysical Research, 105, 29475-29488.
  2. Siqueira, M., G.G. Katul, and C.T. Lai, 2002, "Quantifying net ecosystem exchange by multilevel ecophysiological and turbulent transport models", Advances in Water Resources, 25, 1357-1366.
  3. Siqueira, M., and G.G. Katul, 2002, "Estimating heat sources and fluxes in thermally stratified canopy flows using higher-order closure models", Boundary Layer Meteorology, 103, 125-142.
  4. Siqueira, M., R. Leuning, O. Kolle, F.M. Kelliher, and G.G. Katul, 2003, "Modeling sources and sinks of CO2, H2O and heat within a Siberian pine forest using three inverse methods", Quarterly Journal of the Royal Meteorological Society, 129, 1373-1393.
  5. Katul, G.G., and M. Siqueira, 2002, "Modeling heat, water vapor, and CO2 flux distribution inside canopies using turbulent transport theories", Vadoze Zone Journal,1,58-67

    Other:

  6. Katul, G.G., C.-T. Lai, M. Siqueira, and K. Schafer, J.D. Albertson, K. Wesson, D. Ellsworth, and R. Oren, 2001, "Inferring Scalar Sources and Sinks within Canopies using Forward and Inverse Methods", in Observations and modeling of land-surface fluxes within hydrologic systems, ed., V. Lakshmi and J.D. Albertson, American Geophysical Union, Washington D.C., pp.31-45.
  7. Lai, C.T., G.G. Katul, J. Butnor, M. Siqueira, D. Ellsworth, C. Maier, K. Johnsen, S. McKeand, and R. Oren, 2002, Modeling the limits on the response of net carbon exchange to fertilization in a southeastern pine forest, Plant, Cell, and Environment, 25, 1095-1119
  8. Hsieh, C.I., M. Siqueira, G.G. Katul, and C.R. Chu, 2003, Predicting scalar source-sink and flux distribution withins within a forest canopy using 2-D Lagrangian Stochastic Model, Boundary-Layer Meteorology, 109, 113-138.
  9. Novick , K.A., P. C. Stoy, G. G. Katul, D. S. Ellsworth, M. B. S. Siqueira, J. Juang, R. Oren, 2004, Carbon dioxide and water vapor exchange in a warm temperate grassland, Oecologia, 138: 259-274
  10. Stoy, P., G. G. Katul, M. Siqueira, J.Y. Juang, H. R. McCarthy, H.S. Kim, C. Oishi and R. Oren, 2005, Variability in net ecosystem exchange from hourly to inter-annual time scales at adjacent pine and hardwood forests: a wavelet analysis, Tree Physiology, 25, 887-902.
  11. Katul, G.G., A. Porporato, R. Nathan, M. Siqueira, M. B. Soons, D. Poggi, H. S. Horn, and S. A. Levin, 2005, Mechanistic Analytical Models for Long-Distance Seed Dispersal by Wind, The american naturalist, vol. 166, no. 3, september. Press release from AmNat.
  12. Katul, G.G., C. Williams, M. Siqueira, D. Poggi, A. Porporato, H. McCarthy, and R. Oren, 2006, Spatial modeling of transgenic conifer pollen, in Landscapes, Genomics and Transgenic Conifers, ed. C. Williams, Springer, to appear. The results were presented at a workshop on Landscape Genomics and the paper received significant public attention. For example, the outcome of the model analysis were cited by the Global Justice Ecology Program in their press release Campaign Demands USDA Halt field releases of GE Trees.
  13. Juang, J-Y, G.G. Katul, M.B. Siqueira, P.C. Stoy, S. Palmroth, H. R. McCarthy, H.S. Kim, and R. Oren, 2006, Modeling nighttime ecosystem respiration from measured CO2 concentration and air temperature profiles using inverse methods, Journal of Geophysical Research, 111, D08S05, doi:10.1029/2005JD005976
  14. Siqueira, M.B., G.G. Katul, A. Sampson, P. Stoy, J.Y. Juang, H. McCarthy, and R. Oren, 2006, Multi-scale model inter-comparison of CO2 and H2O exchange rates above a maturing southeastern pine forest. Global Change Biology, 12, 1-19, doi: 10.1111
  15. Stoy, P., G.G. Katul, M.B.S. Siqueira, J.Y Juang, K.A. Novick, H.R. McCarthy, A.C. Oishi, J.M. Uebelherr, H-S Kim, and R. Oren, 2006, Separating the effects of climate and vegetation on evapotranspiration along a successional chronosequence in the southeastern U.S., Global Change Biology, 12, 1-21: 10.1111
  16. Katul, G.G., A. Porporato, D. Cava, and M.B. Siqueira, 2006, An analysis of intermittency, scaling, and surface renewal in atmospheric surface layer turbulence, Physica D, 215, 117-126.
  17. Stoy, P.C., S. Palmroth, A.C. Oishi, E. Ward, M.B.S. Siqueira, J-Y. Juang, K.A. Novick, K. Johnsen, G.G. Katul, R. Oren, 2007, Are ecosystem carbon inputs and outputs coupled at short time scales? A case study from adjacent pine and hardwood forests using impulse-response analysis, Plant, Cell and Environment, doi: 10.1111/j.1365-3040.2007.01655.x
  18. Juang J-Y, A. Porporato, P.C. Stoy, M.B.S. Siqueira, A.C. Oishi, M. Detto, H.S. Kim, and G.G. Katul, 2007, Hydrologic and atmospheric controls on convective precipitation events in a southeastern US mosaic landscape, Water Resources Research, W03421, doi:10.1029/2006WR004954.
  19. Juang J-Y, G.G. Katul, A. Porporato, P.C. Stoy, M.B.S. Siqueira, H.S. Kim, and R. Oren, 2007, Eco-hydrological controls on summertime convective rainfall triggers. Global Change Biology, 13, 1-10.
  20. Katul, G.G., A. Porporato, E. Daly, A.C. Oishi, H-S. Kim, P.C. Stoy, J-Y Juang, M.B.S. Siqueira, (to appear) On the spectrum of soil moisture in a shallow-rooted uniform pine forest: from hourly to inter-annual scales, Water Resources Research.
  21. Detto M., G.G. Katul, M.B.S. Siqueira, J-Y Juang, P.C. Stoy, (to appear) The structure of turbulence near a tall forest edge: The backward facing step flow analogy, Ecological Applications.
  22. Stoy, P., G.G. Katul, M.B.S. Siqueira