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Sparks, Jed P.
Cornell Faculty Member
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Positions
- Associate Professor, Ecology and Evolutionary Biology (EEB), College of Agriculture and Life Sciences (CALS)
- Academic Director, Office of Undergraduate Biology
My teaching and research focus is to understand the physiological characteristics of plants and microbes that control the interaction of plant and soil communities with the atmosphere. I use a wide range of modern ecological methodologies to understand these processes, but always against a higher-level ecosystem and evolutionary backdrop. My current research focuses on how terrestrial ecosystems respond and contribute to environmental conditions. The underlying motivation for understanding the interrelationship between the terrestrial environment, the atmosphere, and the pedosphere is to predict the response of ecosystems to human-driven alterations (pollution, global climate change, disturbance, etc.). My goals in teaching and outreach are to both train new scientists to work in the realm of biosphere-atmosphere interactions and to educate the public about these globally important processes.
Research Areas
- agricultural biotechnology
- biocomplexity
- biogeochemistry
- crop management or crop science
- earth science
- ecology
- ecosystem biology
- environmental sciences
- plant biology
Websites
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- Publications
- Teaching
- Service
- Background
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Affiliations
member of graduate field
member of
- David R. Atkinson Center for a Sustainable Future (ACSF) Faculty Fellow
Research
research overview
- My teaching and research focus is to understand the physiological characteristics of plants and microbes that control the interaction of plant and soil communities with the atmosphere. I use a wide range of modern ecological methodologies to understand these processes, but always against a higher-level ecosystem and evolutionary backdrop. My current research focuses on how terrestrial ecosystems respond and contribute to environmental conditions. The underlying motivation for understanding the interrelationship between the terrestrial environment, the atmosphere, and the pedosphere is to predict the response of ecosystems to human-driven alterations (pollution, global climate change, disturbance, etc.). In the future, my lab group will emphasize two research themes; the interactions of plants with reactive nitrogen compounds and the role terrestrial ecosystems play in atmospheric chemistry. My goals in teaching and outreach are to both train new scientists to work in the realm of biosphere-atmosphere interactions and to educate the public about these globally important processes.
research activities
principal investigator on
- COLLABORATIVE RESEARCH: ADAPTIVE DIFFERENTIATION, SELECTION AND WATER USE OF A SEASONALLY DRY TROPICAL OAK: IMPLICATIONS FOR GLOBAL CHANGE awarded by NATL SCIENCE FOUNDATION 2009 - 2014
- DISSERTATION RESEARCH: THE EFFECTS OF ELEVATED OZONE ON GLOBAL CARBON AND WATER CYCLING MEDIATED BY PLANTS awarded by NATL SCIENCE FOUNDATION 2010 - 2012
area(s) of concentration/expertise
keywords
- Biogeochemistry
submitted impact statement
Publications
individual publications
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academic article
- Ozone exposure causes a decoupling of conductance and photosynthesis: implications for the Ball-Berry stomatal conductance model. Oecologia. 169:651-659. 2012
- Disturbance, decoupling and resilience of carbon and nitrogen cycles in a northern temperate forest: initial results from the Forest Accelerated Succession ExperimenT (FASET). Journal of Geophysical Research. 116. 2011
- Light-mediated 15N fractionation in Caribbean gorgonian octocorals. Zoology. 30:709-717. 2011
- Responses of sugar maple and hemlock seedlings to elevated carbon dioxide under altered above- and belowground nitrogen sources. Tree Physiology. 31:391-401. 2011
- Subcellular localization of silicon and germanium in grass root and leaf tissues by SIMS: evidence for differential and active transport. Biogeochemistry. 104:237-249. 2011
- The effect of long-term exposure to elevated CO2 on nitrogen gas emissions from Mojave Desert soils. Journal of Geophysical Research. 116. 2011
- Carbon exchange in biological soil crust communities under differential temperatures and soil water contents: implications for global change. Global Climate Change. 16:2763-2774. 2010
- Phenotypic plasticity despite source-sink dynamics in a long-lived perennial plant. New Phytologist. 188:856-867. 2010
- The distribution of silicon and germanium in tissues of annual blue grass (Poa annua L.): Evidence for differential and active transport from SIMS ion microscopy.. Biogeochemistry. 104:237-249. 2010
- Tree species effects on ecosystem water-use efficiency in a high-elevation, subalpine forest. Oceologia. 162:491-504. 2010
- Abiotic gas formation drives nitrogen loss from a desert ecosystem. Science. 326:837-840. 2009
- Biogenic volatile organic compounds from an invasive species: impacts on plant-plant interactions. Plant Ecology. :11. 2009
- Foliar incorporation of reactive nitrogen: an important ecological process?. Oecologia. 159:1-13. 2009
- Phylogenetic ecology of leaf surface traits in the milkweeds (Asclepias spp.): Chemistry, ecophysiology, and insect behaviour.. New Phytologist. 183:848-867. 2009
- Biogenic volatile organic compounds from an invasive species: impacts on plant-plant interactions. Plant Ecology. DOI 10.1007/s11258-008-9529-4:11. 2008
- Comparison of total chlorophyll content with chlorophyll meter readings in Oxalis regenellii. HortScience. 43:1097. 2008
- Controls over nitric oxide and ammonia emissions from Mojave Desert soils. Oecologia. 156:871-881. 2008
- Dry nitrogen deposition estimates over a forest experiencing free air CO2 enrichment. Global Change Biology. 14:768-781. 2008
- Plant-pathogenic Streptomyces species produce nitric oxide synthase derived nitric oxide in response to host signals. Chemistry and Biology. 15:43-50. 2008
- Quantifying foliar uptake of gaseous nitrogen dioxide using enriched foliar delta N-15 values. New Phytologist. 177:946-955. 2008
- The contribution of advective fluxes to net ecosystem exchange in a high-elevation, subalpine forest. Ecological Applications. 18:1379-1390. 2008
- Air embolisms exsolving in the transpiration water – the effect of constrictions in the xylem pipes. Functional Plant Biology. 34:95-111. 2007
- Enhancing the efficiency of nitrogen utilization in plants. The Quarterly Review of Biology. 82:422. 2007
- Ge/Si fractionation by higher plants: mechanisms and applications to biogeochemical cycles. Geochemica et Cosmochimica Acta. 71. 2007
- The AraC/XylS regulator TxtR modulates thaxtomin biosynthesis and virulence in Streptomyces scabies. Molecular Microbiology. 66:633-642. 2007
- Eddy covariance fluxes of Peroxyacetyl nitrates (PANs) and NOy to a coniferous forest. Journal of Geophysical Research-Atmospheres. 111. 2006
- Leaf fluxes of NO and NO2 in four herbaceous plant species: The role of ascorbic acid. Atmospheric Environment. 40:2235-2244. 2006
- Predicting leaf-level fluxes of ozone and nitrogen dioxide: The relative roles of diffusion and biochemical processes. Plant, Cell and Environment. 29:1742-1750. 2006
- Climatic influences on net ecosystem CO2 exchange during the transition from wintertime carbon source to springtime carbon sink in a high-elevation, subalpine forest. Oecologia. 146:130-147. 2005
- U.S. nitrogen science plan focuses collaborative efforts. EOS. 86:253-260. 2005
- Characterizing the interaction between the bogus yucca moth and yuccas: Do bogus yucca moths impact yucca reproductive success?. Oceologia. 140:321-327. 2004
- Gaseous fluxes of peroxyacetyl nitrate (PAN) into plant leaves. Plant, Cell, and Environment. 27:1149-1158. 2004
- The cohesion-tension theory. New Phytologist. 163:451-452. 2004
- The herbaceous layer in forests of Eastern North America. The Quarterly Review of Biology. 79:324. 2004
- Temperature as a control over ecosystem CO2 fluxes in a high-elevation, subalpine forest. Oceologia. 134:537-546. 2003
- The uptake of gaseous organic nitrogen by leaves: A significant global nitrogen transfer process. Geophysical Research Letters. 30:2189. 2003
- Carbon sequestration in a high elevation, subalpine forest. Global Change Biology. 8:459-478. 2002
- Heavy and light beer: A carbon isotope approach to detect C4 carbon in beers of different origins, styles and prices. Journal of Agricultural and Food Chemistry. 50:6413-6418. 2002
- Modeling and measuring the effects of disturbance history and climate on carbon and water budgets in evergreen needleleaf forests. Agricultural and Forest Meteorology. 113:185-222. 2002
- Leaf uptake of nitrogen dioxide (NO2) in a tropical wet forest: Implications for tropospheric chemistry. Oecologia. 127:214-221. 2001
- Water content, hydraulic conductivity, and ice formation in winter stems in Pinus contorta: A TDR case study. Oceologia. 127:468-475. 2001
- Annual patterns of xylem embolism and resistance to tension-induced xylem cavitation in coniferous trees from upper and lower treeline. Journal od Arctic, Antarctic and Alpine Research. 32:101-106. 2000
- Liquid water content of wood tissue at temperatures below 0 ˚C. Canadian Journal of Forest Research. 30:624-630. 2000
- Regulation of water loss in populations of Populus trichocarpa: The role of stomatal control in preventing xylem cavitation. Tree Physiology. 19:453-459. 1999
- Leaf carbon isotope discrimination and nitrogen content for riparian trees along elevational transects. Oecologia. 109:362-367. 1997
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booksection
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chapter
- Foliar 15N signatures as indicators of foliar uptake of atmospheric nitrogen pollution. Stable Isotopes as Indicators of Environmental Changes. 93-109. 2007
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document part
- Photosynthesis and autotrophic energy flows 2010
selected publications listing
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- Yi, C., D. E. Anderson, A. A. Turnipseed, S. P. Burns, J. P. Sparks, D. I. Stannard, and R. K. Monson. The contribution of advective fluxes to net ecosystem CO2 exchange in a high-elevation, subalpine fores. Ecological Applications.
- McCalley, C. K.* and J. P. Sparks. Controls over NO and NH3 emissions from Mojave Desert soils. Oecologia.
- Johnson E. G., J.P. Sparks, B. Dzikovski, B.R. Crane, D.M. Gibson, and R. Loria. Plant-pathogenic Streptomyces species produce nitric oxide synthase derived nitric oxide in response to host signals. Chemistry & Biology 15(1):43-50.
- Vallano, D.M.* and J.P. Sparks. Quantifying foliar uptake of gaseous nitrogen dioxide using enriched foliar d15N values. New Phytologist 177:946-955.
- Sparks, J. P., A. J. Walker, A. A. Turnipseed, and A. Guenther. Dry nitrogen deposition estimates over a forest experiencing free air CO2 enrichment. Global Change Biology. 14(4):768-781.
- Joshi, M.V., D.R.D Bignell, E.G. Johnson, J. P. Sparks, D.M. Gibson, R. Loria. The AraC/XylS regulator TxtR modulates thaxtomin biosynthesis and virulence in Streptomyces scabies. Molecular Microbiology 66(3):633-642.
- Derry, L. A., J. P. Sparks and S. Chandra. Ge/Si fractionation by higher plants: mechanisms and applications to biogeochemical cycles. Geochemica et Cosmochimica Acta 71(15):A219-A219 Suppl. S.
- Canny, M. J., J. P. Sparks, C. X. Huang, and M. L. Roderick. Air embolisms exsolving in the transpiration water – the effect of constrictions in the xylem pipes. Functional Plant Biology 34(2):95-111.
- Sparks, J. P. Enhancing the efficiency of nitrogen utilization in plants. The Quarterly Review of Biology. 82(4): Page 422–422,
- Vallano, D. M.* and J. P. Sparks. Foliar 15N signatures as indicators of foliar uptake of atmospheric nitrogen pollution. In: Stable Isotopes as Indicators of Environmental Changes, T. E. Dawson (ed.). pp. 93-109. Academic Press.
- Eller, A. S. D.* and J. P. Sparks. Predicting leaf-level fluxes of ozone and nitrogen dioxide: The relative roles of diffusion and biochemical processes. Plant, Cell, and Environment 29(9):1742‑1750.
- Teklemariam, T. A.* and J. P. Sparks. Leaf fluxes of NO and NO2 in four herbaceous plant species: The role of ascorbic acid. Atmospheric Environment 40(12):2235‑2244.
- Turnipseed, A. A., L. G. Huey, E. Nemitz, R. Stickel, J. Higgs, D. J. Tanner, D. L. Slusher, J. P. Sparks, F. Flocke, and A. Guenther. Eddy covariance fluxes of Peroxyacetyl nitrates (PANs) and NOy to a coniferous forest. Journal of Geophysical Research-Atmospheres 111:D09304, doi:10.1029/2005JD006631.
- Holland, E. A., S. B. Bertman, M. A. Carroll, A. B. Guenther, P. B. Shepson, J. P. Sparks, and J. Lee-Taylor. U.S. nitrogen science plan focuses collaborative efforts. EOS 86(27):253-260.
- Monson, R. K., J. P. Sparks, T. N. Rosenstiel, L. E. Scott-Denton, T. E. Huxman, P. C. Harley, A. A. Turnipseed, S. P. Burns, B. Backlund, and J. Hu. Climatic influences on net ecosystem CO2 exchange during the transition from wintertime carbon source to springtime carbon sink in a high-elevation, subalpine forest. Oecologia 146(1):130-147.
- Althoff, D. M., K. A. Segraves, and J. P. Sparks. Characterizing the interaction between the bogus yucca moth and yuccas: Do bogus yucca moths impact yucca reproductive success? Oecologia 140(2):321‑327.
- Angeles, G., B. Bond, J. S. Boyer, T. Brodribb, J. R. Brooks, M. J. Burns, J. Cavender‑Bares, M. Clearwater, H. Cochard, J. Comstock, S. D. Davis, J. C. Domec, L. Donovan, F. Ewers, B. Gartner, U. Hacke, T. Hinckley, N. M. Holbrook, H. G. Jones, K. Kavanagh, B. Law, J. Lopez-Portillo, C. Lovisolo, T. Martin, J. Martinez-Vilalta, S. Mayr, F. C. Meinzer, P. Melcher, M. Mencuccini, S. Mulkey, A. Nardini, H. S. Neufeld, J. Passioura, W. T. Pockman, R. B. Pratt, S. Rambal, H. Richter, L. Sack, S. Salleo, A. Schubert, P. Schulte, J. P. Sparks, J. Sperry, R. Teskey, and M. Tyree. The cohesion-tension theory. New Phytologist 163(3):451‑452.
- Sparks, J. P. Plant uptake of reactive nitrogen. In: Studying Forest Canopies from Above: The International Canopy Crane Network, Y. Basset, V. Horlyck, and J. Wright (eds.). UNEP & Smithsonian Institution. ISBN 9962-614-05-8.
- Sparks, J. P. Photosynthesis and autotrophic energy flows. In: Encyclopedia of Energy, C. S. Cleveland (ed.). Elsevier, Inc., New York, volume 5, pp. 9-16.
- Sparks, J. P. The herbaceous layer in forests of Eastern North America. The Quarterly Review of Biology 79(3):324.
- Teklemariam, T. A.* and J. P. Sparks. Gaseous fluxes of peroxyacetyl nitrate (PAN) into plant leaves. Plant, Cell, and Environment 27(9):1149-1158.
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Teaching
teaching overview
- My teaching and research focus is to understand the physiological characteristics of plants and microbes that control the interaction of plant and soil communities with the atmosphere. I use a wide range of modern ecological methodologies to understand these processes, but always against a higher-level ecosystem and evolutionary backdrop. My current research focuses on how terrestrial ecosystems respond and contribute to environmental conditions. The underlying motivation for understanding the interrelationship between the terrestrial environment, the atmosphere, and the pedosphere is to predict the response of ecosystems to human-driven alterations (pollution, global climate change, disturbance, etc.). In the future, my lab group will emphasize two research themes; the interactions of plants with reactive nitrogen compounds and the role terrestrial ecosystems play in atmospheric chemistry. My goals in teaching and outreach are to both train new scientists to work in the realm of biosphere-atmosphere interactions and to educate the public about these globally important processes.
teaching activities
- BIOEE-6601: Tropical Field Ecology - Spring 2013
- BIOEE-9990: Ph.D. Dissertation Research - Spring 2013
- BIOG-1200: Biology Scholars Program Freshman Seminar - Spring 2013
- BIOPL-7490: Graduate Research in Botany - Spring 2013
- BIOEE-3610: Advanced Ecology - Fall 2012
- BIOEE-9990: Ph.D. Dissertation Research - Fall 2012
- BIOG-1200: Biology Scholars Program Freshman Seminar - Fall 2012
- BIOG-2200: Biology Scholars Program Sophomore Seminar - Fall 2012
- BIOG-4040: Planning for Graduate Study in Biology - Fall 2012
- BIOPL-7490: Graduate Research in Botany - Fall 2012
- BIOEE-6602: Graduate Field Course in Ecology - Spring 2012
- BIOEE-9990: Ph.D. Dissertation Research - Spring 2012
- BIOG-1200: Biology Scholars Program Freshman Seminar - Spring 2012
- BIOPL-7490: Graduate Research in Botany - Spring 2012
- BIOEE-3610: Advanced Ecology - Fall 2011
- BIOEE-9990: Ph.D. Dissertation Research - Fall 2011
- BIOG-1200: Biology Scholars Program Freshman Seminar - Fall 2011
- BIOG-2200: Biology Scholars Sophomore Seminar - Fall 2011
- BIOG-4040: Planning for Graduate Study in Biology - Fall 2011
- BIOPL-7490: Graduate Research in Botany - Fall 2011
Service
service to the profession
reviewer or editor for
Background
education and training
- Ph.D. in Botany, Washington State University 1998
- University of Utah 1994
awards and honors
- CAREER Award for Science, 2002
- Atmospheric Chemistry Division Visiting Fellowship, 2002
- Biosphere Atmosphere Research Training Fellowship, 1998
- Biddulph Award for Botany, 1997
- Noe Higinbotham Award for Graduate Research, 1996
- Outstanding undergraduate achievement award for biology, 1994
- Aase Graduate Fellowship, 1994
- Howard Hughes Undergraduate Research Fellowship, 1992
Other
college
- CALS
research keyword
- Biogeochemistry
name prefix
- Dr.