Sternberg, Leonel - University of Miami

个人简介

Professor, University of Miami, June 1998-Present Associate Professor, University of Miami, June 1990-June 1998 Assistant Professor, University of Miami, August 1985-June 1990 Postdoctoral Research Fellow, Department of Earth and Space Sciences, University of California, Los Angeles, California 90024, June 1981 - July 1985 Instructor of Agricultural Sciences, Los Angeles School District, Los Angeles, California September 1980 - June 1981 Biochemist, Redken Laboratory, Van Nuys, California, December 1978- September 1980 Ph. D. In Biology, University of California, Riverside, California, November 1978 Thesis: Microbody MDH in Opuntia basilaris. M.S. in Biology, University of California, Riverside, California, November 1975 Thesis: Growth Forms of Larrea tridentata. B.S. in Mathematics, California State University of Hayward, Hayward, California

研究领域

I am interested in how natural processes occurring at the organismal level scale up to communities and ecosystems. I use the natural abundances of carbon, nitrogen, hydrogen and oxygen stable isotopes as a scaling tool. These isotopes are used as natural tracers of biochemical, physiological and ecosystem processes. Knowing something about isotopic fractionations during transpiration at the leaf scale, for example, allows us to conclude that vapor generated in an Amazonian tropical forest is mostly derived by transpiration and not evaporation. This phenomenon when scaled up to a regional level allows us to draw certain conclusions about the effect of deforestation on climate.

近期论文

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Kosten, Sarian, Roland, Fábio, Da Motta Marques, David M.L., Van Nes, Egbert H., Mazzeo, Néstor, Da S. L. Sternberg, Leonel, Scheffer, Marten, Cole, Jon J. Climate-dependent CO2 emissions from lakes. Global Biogeochemical Cycles 24:GB2007, doi10.1029/2009GB003618 (2010). *Matlaga, D., L. da S.L. Sternberg. Ephemeral clonal integration in /Calathea marantifolia/ (Marantaceae): Evidence of diminished integration over time. American Journal of Botany 96: 431-438 (2009). Jahren AH, Byrne MC, Graham HV, Sternberg LSL, Summons RE. The environmental water of the middle Eocene Arctic: evidence from dD, d18O and d13C within specific compounds. Palaeo-3 271: 96-103 (2009). Sternberg L da SL. Oxygen stable isotope ratios of tree-ring cellulose: the next phase of understanding. New Phytologist 181: 553-562 (2009). *Saha AK, Sternberg LdaSL, Miralles-Wilhelm F. Linking water sources with foliar nutrient status in upland communities. Ecohydrology 2:42-54 (2009). Kosten S, Huszar VLM, Mazzeo N, Scheffer M, Sternberg L da SL, Jeppesen E. Limitation of phytoplankton growth in South America: no evidence for increasing nitrogen limitation towards the tropics. Ecological Applications 19: 1791-1804 (2009).