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James Elser

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Research Professor
Faculty, TEMPE Campus, Mailcode 4501
Research Professor (FSC)
Faculty, TEMPE Campus, Mailcode 4501
Distinguished Sustainability Fellow
Faculty, TEMPE Campus, Mailcode 4501
Biography

James Elser investigates the theory of biological stoichiometry — the study of the balance of energy and multiple chemical elements in living systems. He and his international team of collaborators seek to understand how the coupling of carbon, nitrogen and phosphorus shapes the ecology and evolution of living things.

To do so, they work with a diversity of ecosystems (from lakes and deserts, to hot springs and grasslands), biota (plankton to insects, and pandas to tumors), and approaches (laboratory chemostats, field experiments and mathematical models).

Professor Elser played a major role in establishing ASU’s Sustainable Phosphorus Initiative and is now the lead investigator for an NSF Research Coordination Network on Phosphorus Sustainability. Through these efforts, he seeks to help create a sustainable food system by closing the human P cycle.

 

Education

Ph.D.University of California-Davis 1990

Research Interests

My research involves the integrative field of biological stoichiometry, the study of the balance of energy and multiple chemical elements in living systems. While this work is primarily ecological in focus and includes studies of both aquatic and terrestrial ecosystems and biota, the approach uses an evolutionary perspective to integrate levels of organization from the molecule and cell to the ecosystem. Studies involve observational and experimental studies at various scales, including laboratory cultures, short-term field experiments and sustained whole-ecosystem manipulations. Over the years, field sites have included lakes of Colorado, Ontario, Norway and Arctic Alaska; lakes, forests, and grasslands of the upper Midwest; desert springs in Mexico's Chihuahuan Desert; grasslands of Inner Mongolia; and the surrounding Sonoran Desert. In addition, I collaborate extensively with mathematicians to develop formal theoretical approaches to these questions. For more information: http://www.elserlab.asu.edu/index.html

Publications
  • Tapia-Torres, Y., J.J. Elser, V. Souza, and F. García-Oliva. 2015. Ecoenzymatic stoichiometry at the extremes: how microbes cope in an ultra-oligotrophic soil. Soil Biol. Biochem. 87: 34-42.
  • Elser, J.J., M. Bastidas-Navarro, J.R. Corman, H. Emick, M. Kellom, C. Laspoumaderes, Z. Lee, A. Poret-Peterson, E. Balseiro, and B. Modenutti. 2015. Community structure and biogeochemical impacts of microbial life on floating pumice. Appl. Envir. Microbiol. 81: 1542-49.
  • Nie, Y, Z.J. Zhang, D. Raubenheimer, J.J. Elser, W. Wei, and F. Wei.  2015. Obligate herbivory in an evolutionary omnivore: the giant panda and bamboo from the perspective of nutritional geometry. Functional Ecology 29: 26-34.   
  • Wyant, K., J. Corman, and J.J. Elser (editors). 2013.Phosphorus, Food, and Our Future. Oxford University Press. New York City, New York.
  • Elser, J.J.  2012.  Phosphorus: limiting nutrient for humanity? Curr. Opin. Biotech. 23: 1-6 (Invited). 10.1016/j.copbio.2012.03.001 
  • Elser, J.J., I. Loladze, A. Peace, and Y. Kuang. 2012. Lotka re-loaded: modeling trophic interactions under stoichiometric constraints. Ecological Modeling 245: 3-11. 10.1016/j.ecolmodel.2012.02.006
  • Elser, J.J., and E. Bennett.  2011. Phosphorus: a broken biogeochemical cycle.  Nature 478: 29-31. 
  • Elser, J.J., T. Andersen, J.S. Baron, A.-K. Bergström, M. Jansson, M. Kyle, K.R. Nydick, L. Steger, and D.O. Hessen. 2009. Shifts in lake N:P stoichiometry and nutrient limitation driven by atmospheric nitrogen deposition. Science326: 835-837.

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  • Toberman, H, C. Chen, T. Lewis, and J.J. Elser. High frequency fire alters C:N:P stoichiometric coupling in forest litter. Global Change Biology (2015).
  • Elser, J.J., S.R. Carpenter, and W.A. Brock. Regime shift in fertilizer commodities indicates more turbulence ahead for food security. PLOS ONE (2014).
  • Haygarth, P.M., H.P. Jarvie, S.M. Powers, A. N. Sharpley, J.J. Elser, J. Shen, H.M. Peterson, N.I. Chan, N.J.K. Howden, T. Burt, F. Worrall, F.S. Zhang, and X.J. Liu. Sustainable phosphorus management and the need for a long-term perspective: the legacy hypothesis. Env. Sci. Tech (2014).
  • Metson, G.S., V. H. Smith, D. Cordell, D.A. Vaccari, and J.J. Elser. Phosphorus is a key component of the resource demands for meat, eggs, and dairy production in the United States. Proc. Nat. Acad. Sci. USA (2014).
  • Neveu, M., A. Poret-Peterson, Z. Lee, A. Anbar, and J.J. Elser. Cells separated from sediments are suitable for elemental composition analysis. Limnol. Oceanogr. Methods (2014).
  • Van de Waal, D.B., V.H. Smith, S.A.J. Declerck, E.C.M. Stam, and J.J. Elser. Stoichiometric regulation of phytoplankton toxins. Ecology Letters (2014).
  • Zhang ZJ, Elser JJ, Cease AJ, Zhang XM, Yu Q, X. Han, and G. Zhang. Grasshoppers regulate N:P stoichiometric homeostasis by changing phosphorus contents in their frass. PLOS ONE (2014).
  • Zhang, C., D, Niu, S.J. Hall, H. Wen, X. Li, H. Fu, C. Wan, and J.J. Elser. Effects of simulated nitrogen deposition on soil respiration components and their temperature sensitivities in a semiarid grassland. Soil Biol. Biochem (2014).
  • Elser, J.J, and S. Davis. The Long Alchemy of Becoming (Aqua es vida.). (2014).
  • Borer, E.T., M.E.S. Bracken, E. W. Seabloom, J. E. Smith, J. Cebrian, E. E. Cleland, J. J. Elser, D. S. Gruner, W. S. Harpole, H. Hillebrand, A.J. Kerkhoff, and J.T. Ngai. Global biogeography of autotroph chemistry: is insolation a driving force?. Oikos (2013).
  • Elser, J.J., and B. Rittmann. A dirty way to feed 9 billion people. Slate magazine. Slate magazine (Future Tense section) (2013).
  • Gilbert, J., H. Martinson, S. Kumar, J. J. Elser, C. Acquisti, and W.F. Fagan. GRASP [Genomic Resource Access for Stoichioproteomics]: Comparative explorations of the atomic content of 12 Drosophila proteomes. Genome Biology (2013).
  • Hessen, D.O., J.J. Elser, R.W. Sterner, and J. Urabe. Ecological stoichiometry – an elementary ap-proach using basic principles. Limnol. Oceanogr (2013).
  • Modenutti, B.E., E. G. Balseiro, J.J. Elser, M. Bastidas Navarro, F. Cuassolo, C. Laspoumaderes, M. S. Souza and V. Díaz Villanueva. Effect of volcanic eruption on nutrients, light, and phytoplankton in oligotrophic lakes. Limnol. Oceanogr (2013).
  • Peace, A., Y. Zhao, I. Loladze, J.J. Elser, and Y. Kuang. A stoichiometric producer-grazer model incorporating the effects of excess food nutrient content on consumer dynamics. Mathematical Biosciences (2013).
  • Ximei, Z., L. Wei Liu, J.J. Elser, G. Zhang, and X. Han. Response of the abundance of key soil microbial nitrogen-cycling genes to multi-factorial global changes. PLOS ONE (2013).
  • Wyant, K., J. Corman, and J.J. Elser (editors). Phosphorus, Food, and Our Future. (2013).
  • Elser, J.J., W. Roberts, and P. Haygarth. P is for phosphorus: the biology and ecology of phosphorus in biota, natural ecosystems, and agroecosystems. Phosphorus, Food, and Our Future (2013).
  • Elser, J.J., and Y. Kuang. Ecological stoichiometry. Encyclopedia of Theoretical Ecology (2012).
  • Cease, A.J., J.J. Elser, C.F. Ford, S. Hao, L. Kang, and J.F. Harrison. Livestock overgrazing promotes locust outbreaks by lowering plant nitrogen content. Science (2012).
  • Domis, L.N.D., and others. Plankton dynamics under different climatic conditions in space and time. Freshwater Biology (2012).
  • Elser, J.J. Phosphorus: limiting nutrient for humanity?. Curr. Opin. Biotech (2012).
  • Elser, J.J., I. Loladze, A. Peace, and Y. Kuang. Lotka re-loaded: modeling trophic interactions under stoichiometric constraints. Ecological Modeling (2012).
  • Gaxiola, R., J.J. Elser, and C.A. Sanchez. Genetic manipulation of a "vacuolar" H+-PPase: from salt tolerance to yield enhancement under phosphorus-deficient soils. Plant Physiol (2012).
  • McCrackin, M., and J.J. Elser. Denitrification kinetics and denitrifier abundances in sediments of lakes receiving atmospheric nitrogen deposition (Colorado, USA). Biogeochemistry (2012).
  • Metson, G, E. Bennett, and J.J. Elser. The role of diet in phosphorus demand. Environmental Research Letters (2012).
  • Sommer, U. and others. Beyond the Plankton Ecology Group (PEG) Model: Mechanisms Driving Plankton Succession. Ann Rev Ecol Syst (2012).
  • Souza, V., J. Siefert, A.E. Escalante, J.J. Elser, and L.E. Eguiarte. The Cuatro Ciénegas Basin in Coahuila, México: an astrobiological Precambrian park. Astrobiology (2012).
  • Souza, V., L.E. Eguiarte, M. Travisano, J.J. Elser, C. Rooks, and J.L. Siefert. Travel, sex, and food: what's speciation got to do with it?. Astrobiology (2012).
  • Swenson, N., and others. The biogeography and filtering of woody plant functional diversity in North and South America. Global Ecol. Biogeogr (2012).
  • Wang, H., R.W. Sterner, and J.J. Elser. On the "strict homeostasis" assumption in ecological stoichiometry. Ecological Modelling (2012).
  • Yu, Q., H. Wu, N. He, X. Lu, Z. Wang, J.J. Elser, J. Wu, and X. Han. Testing the growth rate hypothesis in vascular plants with above- and below-ground biomass. PLOS ONE (2012).
  • Childers, D.L., J. Corman, M. Edwards, and J.J. Elser. Sustainability challenges of phosphorus and food: Solutions from closing the human phosphorus cycle. Bioscience. BioScience (2011).
  • Harpole, W.S., J.T. Ngai, E.E. Cleland, E.T. Borer, M.E.S. Bracken, J.J. Elser, D.S. Gruner, H. Hillebrand, E.W. Seabloom, J.B. Shurin, and J.E. Smith. Nutrient co-limitation of primary producer communities. Ecology Letters (2011).
  • Kattge, J., and others. TRY – a global database of plant traits. Global Change Biology (2011).
  • Loladze, I., and J.J. Elser. The origins of the Redfield nitrogen-to-phosphorus ratio are in a homeostatic protein-to-RNA ratio. Ecology Letters (2011).
  • McCrackin, M., and J.J. Elser. Greenhouse gas dynamics in high elevation lakes receiving atmospheric ni-trogen deposition. Global Biogeochemical Cycles (2011).
  • Yu, Q., J.J. Elser, N. He, H. Wu, Q. Chen, G. Zhang, L. Zhang, and X. Han. Stoichiometric homeostasis of vascular plants in the Inner Mongolia grassland. Oecologia (2011).
  • Elser, J.J. A world awash in nitrogen. (2011).
  • Elser, J.J., and E. Bennett. Phosphorus: a broken biogeochemical cycle. (2011).
  • Cease, A.J., S. Hao, L. Kang, J. J. Elser, and J. F. Harrison. 2010. Is migratory polyphenism correlated with green-brown polyphenism or influenced by density in the band-winged grasshopper, Oedaleus asiaticus?. J. Insect Physiology (2010).
  • Elser, J.J., C. Acquisti, and S. Kumar. Stoichiogenomics: the evolutionary ecology of macromolecular elemental composition. Trends Ecol. Evol (2010).
  • Elser, J.J., M. Kyle, A. McBryan, M.L. McCrackin, T. Andersen, and D.O. Hessen. Atmospheric nitrogen deposition induces phosphorus limitation of lake zooplankton. Ecology Letters (2010).
  • Elser, J.J., W.F. Fagan, A.J. Kerkhoff, and B. Enquist. Biological stoichiometry of plant production: metabolism, scaling, and ecosystem response to global change. New Phytologist (2010).
  • Glass, J.B., F. Wolfe-Simon, J.J. Elser, and A.D. Anbar. Molybdenum–nitrogen co-limitation in freshwater and coastal heterocystous cyanobacteria. Limnol. Oceanogr (2010).
  • McCrackin, M., and J.J. Elser. Atmospheric nitrogen deposition influences denitrification and nitrous oxide production in lakes. Ecology (2010).
  • Reich, P.B., J. Oleksyn, I.J. Wright, K.J. Niklas, L. Hedin, and J.J. Elser. Evidence of a general 2/3-power leaf nitrogen to phosphorus scaling among major plant groups and biomes. Proc. Roy. Soc. Ser. B (2010).
  • Urabe, J., S. Naeem, D. Raubenheimer, and J.J. Elser. The evolution of biological stoichiometry under global change. Oikos (2010).
  • Yu, Q., Q. Chen, J.J. Elser, N. He, H. Wu, G. Zhang, and X. Han. Stoichiometric homeostasis explains species dominance and biomass variability in grassland. Ecology Letters (2010).
  • Angela Cazel-Jahn. Our Floating Days. (2010).
  • Frost, P., and J.J. Elser. Biological stoichiometry. Encyclopedia of Life Sciences (2009).
  • Sterner, R.W., J.J. Elser. Ecological stoichiometry. Princeton Guide to Ecology (2009).
  • Acquisti, C., S. Kumar, and J.J. Elser. From elements to biological processes: signatures of nitrogen limitation in the elemental composition of the catabolic apparatus. Proc. Roy. Soc. B (2009).
  • Elser, J.J., M. Kyle, L. Steger, K.R. Nydick and J.S. Baron. Nutrient availability and phytoplankton nutrient limitation across a gradient of atmospheric nitrogen deposition. Ecology (2009).
  • Elser, J.J., T. Andersen, J.S. Baron, A.-K. Bergström, M. Jansson, M. Kyle, K.R. Nydick, L. Steger, and D.O. Hessen. Shifts in lake N:P stoichiometry and nutrient limitation driven by atmospheric nitrogen deposition. Science (2009).
  • Hillebrand, H., E. T. Borer, M. E. S. Bracken, B. J. Cardinale, J. Cebrian, E. E. Cleland, K. Cottingham, J. J. Elser , D. S. Gruner, W. S. Harpole, C. de Mazancourt, J. T. Ngai, S. Sandin, E. W. Seabloom, J. B. Shurin, J. E. Smith, M. D. Smith, and E. M. Wolkovich. Metabolic and stoichiometric constraints on herbivory across organisms and ecosystems. Ecology Letters (2009).
  • Mulder, C., and J.J. Elser. Biological stoichiometry and the regulation of soil fauna biomass spectra. Global Change Biology (2009).
  • Wang, H., K. Dunning, J.J. Elser, and Y. Kuang. Daphnia species invasion, competitive exclusion, and chaotic coexistence. Discr. Cont. Dynam. Syst., Ser. B (2009).
  • Sterner, R.W., J.J. Elser. Ecological stoichiometry: overview. Encyclopedia of Ecology (2008).
  • D. Gruner, M. Bracken, E. Borer, B. Bolker, J. Smith, E. Seabloom, S. Sandin, J. Ngai, H. Hillebrand, W. Harpole, James Elser, E. Cleland. A cross-system synthesis of herbivore and nutrient resource control on producer biomass. Ecology Letters (2008).
  • Dunning, K.A., M. Kyle, Y. Kuang, and J.J. Elser. A Mathematical and Empirical Analysis of Stoichiometric Effects of Light Intensity on Daphnia Dynamics and Coexistence. Journal of Young Investigators (2008).
  • Hessen, D.O., M. Ventura, J.J. Elser. Does variation in genome size reflect cellular competition for P between DNA and RNA?. Genome (2008).
  • V. Souza, L. Eguiarte, J. Siefert, and James Elser. Microbial endemism: does nutrient limitation enhance speciation?. Nature Reviews Microbiology (2008).
  • . . Review of: Physiological Ecology (2008).
  • A Novotny, J Schade, M Kyle, A Kay, S Hobbie, P Reich, James Elser. Stoichiometric response of nitrogen-fixing and non-fixing dicots to manipulations of CO2, nitrogen, and diversity. Oecologia (2007).
  • H. Hillebrand, E. Seabloom, J. Shurin, J. Smith, D. Gruner, E. Borer, M. Bracken, E. Cleland, James Elser, James Elser, W. Harpole, J. Ngai. Consumer versus resource control of producer diversity depends on ecosystem type and producer community structure. Proc. Nat. Acad. Sci. USA (2007).
  • J Clasen, James Elser. The effect of host Chlorella NC64a carbon:phosphorus ratio on production of Paramecium Chlorella virus-1. Freshwater Biology (2007).
  • James Elser, Andrew Hamilton. Stoichiometry and the new biology: the future is now. PLOS Biology (2007).
  • James Elser, J Smith, M Bracken, E Cleland, D Grune, W Harpole, H Hillebrand, J Ngai, E Seabloom, J Shurin. Global analysis of nitrogen and phosphorus limitation of primary producers in freshwater, marine, and terrestrial ecosystems. Ecology Letters (2007).
  • James Elser. Biological stoichiometry: a chemical bridge between ecosystem ecology and evolutionary biology. The American Naturalist (2006).
  • James Elser, T Watts, T Markow. Ontogenetic coupling among growth rate, RNA allocation, and P content in five species of Drosophila. Functional Ecology (2006).
  • James Elser, W Fagan, S Subramanian, Sudhir Kumar. Signatures of ecological resource availability in the animal and plant proteomes. Molecular Biology and Evolution (2006).
  • K Acharya, P Bukaveckas, J Jack, M Kyle, James Elser. Consumer growth linked to diet and RNA - P stoichiometry: Response of Bosmina to natural and experimental variation in food resources. Limnol. Oceanogr (2006).
  • M Boersma, James Elser. Too much of a good thing: on balanced diets and maximal growth. Ecology (2006).
  • S Bertram, J Schade, James Elser. Signaling and phosphorus: correlations between mate signaling effort and body elemental composition in crickets. Animal Behavior (2006).
  • V Souza, R Dirzo, James Elser, L Espinosa-Asur, A Escalante, L Eguiarte, J Farmer, L Forney, L Lloret, J Rodríguez Martínez, X Soberon. An endangered oasis of aquatic microbial biodiversity in the Chihuahuan desert. Proc. Nat. Academic Science USA (2006).
  • A Kerkhoff, B Enquist, James Elser, W Fagan. Plant allometry, stoichiometry and the temperature-dependence of terrestrial primary production. Global Ecology and Biogeography (2005).
  • D Hessen, James Elser. Elements of ecology and evolution. Oikos (2005).
  • J Gillooly, A Allen, J Brown, James Elser, V Savage, G West, W Woodruff, H Woods. The metabolic basis of whole-organism RNA and phosphorus stoichiometry. Proc. Nat. Academic Science USA (2005).
  • James Elser, J Schampel, F Garcia-Pichel, B Wade, V Souza, L Eguiarte, A Escalante, J Farmer. Effects of PO4 enrichment and grazing snails on microbial communities in an ecosystem with living stromatolites. Freshwater Biology (2005).
  • James Elser, J Schampel, M Kyle, J Watts, E Carson, T Dowling, C Tang, P Roopnarine. Effects of PO4 enrichment of microbial communities on hydrobiid snails in an ecosystem with living stromatolites. Freshwater Biology (2005).
  • L Weider, James Elser, T Crease, M Mateos, T Markow, J Cotner. Functional significance of ribosomal(r)DNA variation in the ecology of organisms. Annual Review of Ecology, Evolution, and Systematics (2005).
  • L Weider, W Makino, K Acharya, K Glenn, M Kyle, J Urabe, James Elser. Genotype x environment interactions, stoichiometric food quality effects, and clonal coexistence in Daphnia pulex. Oecologia (2005).
  • M Fan, I Loladze, Y Kuang, James Elser. Dynamics of a stoichiometric discrete producer-grazer model. Journal Difference Equations and Applications (2005).
  • Elser, James Joseph (Author) ,Hessen, D O (Author) . Biosimplicity via stoichiometry: the evolution of food-web structure and processes. Aquatic Food Webs: an Ecosystem Approach (2005).
  • A Woods, W Fagan, J Harrison, James Elser. Allometric and taxonomic-dependence of phosphorus content in insects and arachnids. Functional Ecology (2004).
  • C Miller, Y Kuang, W Fagan, James Elser. Modeling and analysis of stoichiometric two-patch consumer-resource systems. Mathematical Biosciences (2004).
  • D Hessen, G Ã…gren, T Anderson, James Elser, P De Reuter. Carbon sequestration in ecosystems: the role of stoichiometry. Ecology (2004).
  • I Loladze, Y Kuang, James Elser, W Fagan. Competition and stoichiometry: coexistence of two predators on one prey. Journal Theory Biology (2004).
  • James Elser. Biological stoichiometry: an ecological view on the complexity of cancer. Synergies (Interdisciplinary Communications) (2004).
  • K Acharya, M Kyle, James Elser. Biological stoichiometry of Daphnia growth: an ecophysiological test of the growth rate hypothesis. Limnol. Oceanogr (2004).
  • K Acharya, M Kyle, James Elser. Effects of stoichiometric dietary mixing on Daphnia growth and reproduction. Oecologia (2004).
  • L Weider, K Glenn, M Kyle, James Elser. Associations among ribosomal (r)DNA intergenic spacer length, growth rate, and C:N:P stoichiometry in the genus Daphnia. Limnol. Oceanogr (2004).
  • M Perkins, H Woods, J Harrison, James Elser. Dietary phosphorus affects the growth of larval Manduca sexta. Arch. Insect Biochemistry (2004).
  • T Andersen, James Elser, D Hessen. Stoichiometry and population dynamics. Ecology Letters (2004).
  • V Souza, A Escalante, L Espinoza, A Valera, A Cruz, L Eguiarte, F García-Pichel, James Elser. Los microbios de Cuatro Ciénegas: un laboratorio natural para el estudio de la Astrobiología. Ciencias (2004).
  • W Kerfoot, G Mittelbach, N Hairston, James Elser. Biocomplexity in aquatic ecosystems: overview. Limnol. Oceanogr (2004).
  • G Ã…gren, D Hessen, T Anderson, James Elser, P De Reuter. Element interactions: Theoretical considerations. Interactions of the Major Biogeochemical Cycles - Global Change and Human Impacts, SCOPE 61 (2003).
  • H Woods, W Makino, J Cotner, S Hobbie, J Harrison, K Acharya, James Elser. Temperature shifts cause systematic changes in chemical composition of ectothermic organisms. Function Ecology (2003).
  • J Schade, M Kyle, S Hobbie, W Fagan, James Elser. Stoichiometric tracking of soil nutrients by a desert insect herbivore. Ecology Letters (2003).
  • James Elser. Biological stoichiometry: a theoretical framework connecting ecosystem ecology, evolution, and biochemistry for application in astrobiology. International Journal of Astrobiology (2003).
  • James Elser, J Nagy, Y Kuang. Biological stoichiometry: an ecological perspective on tumor dynamics. BioScience (2003).
  • James Elser, M Kyle, W Makino, T Yoshida, J Urabe. Algal and bacterial resource limitation and the microbial food web: a test of the light:nutrient hypothesis. Aquatic Microb. Ecology (2003).
  • M Kyle, T Watts, J Schade, James Elser. A microfluorometric method for quantifying RNA and DNA in terrestrial insects. Journal of Insect Science (2003).
  • P Frost, S Tank, M Turner, James Elser. Elemental composition of littoral invertebrates from oligotrophic and eutrophic Canadian lakes. Journal of the North American Benthological Society (2003).
  • T Yoshida, J Urabe, James Elser. Assessment of 'top-down' and 'bottom-up' forces as determinants of rotifer distribution among lakes in Ontario, Canada. Ecology Res (2003).
  • W Makino, J Cotner, R Sterner, James Elser. Are bacteria more like plants or animals? Growth rate and substrate dependence of bacterial C:N:P stoichiometry. Function Ecology (2003).
  • Y Kuang, J Nagy, James Elser. Biological stoichiometry of tumor dynamics: mathematical models and analysis. Discr. Cont. Dynamic Systems, B (2003).
  • Ågren, G I (Author) ,Hessen, D O (Author) ,Anderson, T R (Author) ,Elser, James Joseph (Author) ,De Reuter, P (Author) . Element interactions: theoretical considerations. Interactions of the Major Biogeochemical Cycles - Global Change and Human Impacts, SCOPE 61 (2003).
  • D Dobberfuhl, James Elser. Distribution and potential competitive effects of an exotic zooplankter (Daphnia lumholtzi) in Arizona reservoirs. Journal Arizona-Nevada Academic Science (2002).
  • E Gorokhova, T Dowling, T Crease, L Weider, James Elser. Functional and ecological significance of rDNA IGS variation in a clonal organism under divergent selection for production rate. Proc. Roy. Academic Lond B (2002).
  • H Woods, M Perkins, James Elser, J Harrison. Absorption and storage of phosphorus by larval Manduca sexta. Journal Insect Phys (2002).
  • J Urabe, James Elser, M Kyle, T Sekino, Z Kawabata. Herbivorous animals can mitigate unfavorable ratios of energy and material supplies by enhancing nutrient recycling. Ecology Letters (2002).
  • J Urabe, M Kyle, W Makino, T Yoshida, T Andersen, James Elser. Reduced light increases herbivore production due to stoichiometric effects of light:nutrient balance. Ecology (2002).
  • J Urabe, W Makino, K Hayakawa, James Elser. Food quality determinants for Daphnia growth in P-limited lakes. Verh. Internat. Verein. Limnol (2002).
  • James Elser, M Kyle, P Frost, J Urabe, T Andersen. Effects of light and nutrients on plankton stoichiometry and biomass in a P-limited lake. Hydrobiologia (2002).
  • M Xenopoulos, P Frost, James Elser. Joint effects of ultraviolet radiation and phosphorus supply on phytoplankton growth rate and elemental composition. Ecology (2002).
  • P Frost, James Elser. Growth responses of littoral mayflies to the phosphorus content of their food. Ecology Letters (2002).
  • P Frost, James Elser, M Turner. Effects of caddisfly grazers on the elemental composition of epilithon in a boreal lake. Journal of the North American Benthological Society (2002).
  • P Frost, James Elser, M Turner. Effects of light and nutrients on the accumulation and elemental composition of epilithon in boreal lakes. Freshwater Biology (2002).
  • P Frost, R Stelzer, G Lamberti, James Elser. Ecological stoichiometry of trophic interactions in the benthos: Understanding the role of C:N:P ratios in lentic and lotic habitats. Journal of the North American Benthological Society (2002).
  • W Fagan, E Siemann, R Denno, C Mitter, A Huberty, H Woods, James Elser. Nitrogen in insects: implications for trophic complexity and species diversification. The American Naturalist (2002).
  • W Makino, J Urabe, James Elser, C Yoshimizu. Evidence of phosphorus-limited individual and population growth of Daphnia in a Canadian Shield lake. OIKOS (2002).
  • Sterner, R W, Elser, James Joseph. Ecological Stoichiometry: The Biology of Elements from Molecules to the Biosphere. (2002).
  • E Muller, R Nisbet, S Kooijman, James Elser, E McCauley. Stoichiometric food quality and herbivore dynamics. Ecology Letters (2001).
  • James Elser, H Hayakawa, J Urabe. Nutrient limitation reduces food quality for zoo-plankton: Daphnia response to seston phosphorus enrichment. Ecology (2001).
  • James Elser, L Gudex, M Kyle, T Ishikawa, J Urabe. Effects of zooplankton on nutrient availability and seston C:N:P stoichiometry in inshore waters of Lake Biwa, Japan. Limnology (2001).
  • D Dobberfuhl, James Elser. Ecological stoichiometry of lower food web components in temperate and arctic lakes. Journal Plankton Res (2000).
  • D Dobberfuhl, James Elser. Inferring threshold stoichiometric food quality from first principles: the influence of life-history strategy and maximum assimilation efficiencies of C and P. Verh. Internat. Verein. Limnol (2000).
  • I Loladze, Y Kuang, James Elser. Stoichiometry in producer-grazer systems: linking energy flow and element cycling. Bull. Mathematics Biology (2000).
  • James Elser. From sea to lake to land: ecological stoichiometry and the flow of energy and matter in ecosystems. Trends Ecology Evolution (2000).
  • James Elser, K Schulz, E Siemann, R Sterner, W Fagan, R Denno, D Dobberfuhl, A Folarin, A Huberty, S Interlandi, S Kilham, E McCauley. Nutritional constraints in terrestrial and freshwater food webs. Nature (2000).
  • James Elser, L Weider, R Sterner, E Gorokhova, W Fagan, T Markow, J Cotner, J Harrison, S Hobbie, G Odell. Biological stoichiometry from genes to ecosystems. Ecology Letters (2000).
  • James Elser, R Sterner, A Galford, T Chrzanowski, D Findlay, K Mills, M Paterson, M Stainton, D Schindler. Pelagic C:N:P stoichiometry in a eutrophied lake: responses to a whole-lake food-web manipulation. Ecosystems (2000).
  • James Elser, T Dowling, D Dobberfuhl, J O'Brien. The evolution of ecosystem processes: ecological stoichiometry of a key herbivore in temperate and arctic habitats. Journal Evolution Biology (2000).
  • P Falkowski, S Linder, F Mackenzie, B Moore, T Pedersen, Y Rosenthal, S Seitzinger, V Smetacek, W Steffen, R Scholes, E Boyle, J Canadell, D Canfield, James Elser, N Gruber, K Hibbard, P Hög-berg. The global carbon cycle: a test of our knowledge of Earth as a system. Science (2000).
  • Elser, James Joseph (Author) . Stoichiometric analysis of pelagic ecosystems: the biogeochemistry of plank-tonic food webs. Methods in Ecosystem Science (2000).
  • Acquisti, C., J.J. Elser, and S. Kumar. Ecological nitrogen limitation shapes the DNA composition of plant genomes. Mol. Biol. Evol (0).
  • Elser, J.J., and S. White. 2010. "Peak phosphorus" and "The new resource crunch". Foreign Policy Magazine (online, 4/22/10) (0).
  • Zhang, G., X. Han, and J.J. Elser. Rapid top-down regulation of plant C:N:P stoichiometry by grasshoppers in an Inner Mongolia grassland ecosystem. Oecologia (0).
Research Activity
Fall 2015
Course NumberCourse Title
BIO 151Biological Thinking
Spring 2015
Course NumberCourse Title
BIO 426Limnology
Fall 2014
Course NumberCourse Title
BIO 151Biological Thinking
Spring 2014
Course NumberCourse Title
BIO 493Honors Thesis
MBB 495Undergraduate Research
Fall 2013
Course NumberCourse Title
BIO 100The Living World
BIO 492Honors Directed Study
MBB 495Undergraduate Research
Spring 2013
Course NumberCourse Title
BIO 493Honors Thesis
BIO 494Special Topics
MBB 495Undergraduate Research
Presentations
  • Elser, J.J. Biological stoichiometry in ecology and evolution. Seminar, Hugh Hanson Ecology Seminar, School of Life Sciences, ASU, Tempe, AZ (Nov 2014).
  • Elser, J.J. Phosphorus, Food, and Our Future. Symposium on Water Resources & Rebounding Cities, Kent State University, Kent, Ohio (Oct 2014).
  • Elser, J.J. Biological stoichiometry in ecology and evolution. Keynote, Woodstoich 3 international workshop on ecological stoichiometry. Sydney, Australia (Aug 2014).
  • Elser, J.J. Innovation & the food system. AgTech Summit, Steinbeck Innovation Foundation, Monterey, CA (Jul 2014).
  • Elser, J.J. Biological stoichiometry in ecology and evolution. Seminar, University of the Chinese Academy of Sciences International Summer School on Frontier and I (Jun 2014).
  • Elser, J.J, J.R. Corman, Z. Lee, J. Siefert, M. Bastidas, F. Cuassolo, C. Laspoumaderes, M. Sol Souza, B. Modenutti, and E. Balseiro. Life on floating pumice. Oral presentation at the 2014 Joint Aquatic Scienc-es Meeting, Portland, Oregon, USA (May 2014).
  • Elser, J.J. Biological stoichiometry in ecology and evolution. Seminar, Smithsonian Tropical Research Institute, Panama City, Panama (Apr 2014).
  • Elser, J.J., Z. Lee, C. Dupont, J. Siefert, and V. Souza. Effects of nutrient enrichment and N:P stoichiometry on microbial community structure in an ancient (very) shallow remnant sea at Cuatro Cienegas, Mexico. 2014 Ocean Sciences Meeting, Honolulu, HI (Feb 2014).
  • Elser, J.J. The science of global change. "Climate Change and the Common Good" conference, University of Notre Dame, Notre Dame, IN (Apr 2013).
  • Elser, J.J., L. Steger, M. Kyle, M.L. McCrackin, Jenni Learned, S. Schimpp, & A. Peace. Living on the stoichiometric knife-edge: effects of high and low food C:P ratio on growth, feeding, and respiration in multiple Daphnia species. 2013 Association for the Sciences of Limnology and Oceanography (ASLO) Aquatic Sciences Meeting, New (Feb 2013).
  • Elser, J.J., S.R. Carpenter, W. Brock, G. Metson, and E. Bennett. New dimensions of global P sustainability. Gordon Research Conference on Metabolic Ecology (Jul 2012).
  • Corman, J.R., V. Souza, and J.J. Elser. Nutrient availability and calcification in lithifying freshwater microbialites. 2012 American Society of Limnology and Oceanography (ASLO) Aquatic Sciences Meeting, Lake Biwa, Shig (Jul 2012).
  • Modenutti, B., E. Balseiro, M. Bastidas, F. Cuassolo, C. Laspoumaderes, M. Sol Souza, and J.J. Elser. "Testing the mechanisms of impact of the Puyehue-Cordon Caulle mega-eruption on Patagonian lakes.". 2012 American Society of Limnology and Oceanography (ASLO) Aquatic Sciences Meeting, Lake Biwa, Shig (Jul 2012).
  • Balseiro, E., B. Modenutti, M. Bastidas, F. Cuassolo, C. Laspoumaderes, M. Sol Souza, and J.J. Elser. "Impacts & ongoing recovery of Patagonian lakes from the Puyehue-Cordon Caulle mega-eruption.". 2012 American Society of Limnology and Oceanography (ASLO) Aquatic Sciences Meeting, Lake Biwa, Shig (Jul 2012).
  • Elser, J.J, J.R. Corman, Z. Lee, J. Siefert, M. Bastidas, F. Cuassolo, C. Laspoumaderes, M. Sol Souza, B. Modenutti, and E. Balseiro. "Life on floating pumice.". 2012 American Society of Limnology and Oceanography (ASLO) Aquatic Sciences Meeting, Lake Biwa, Shig (Jul 2012).
  • Elser, J.J. Keep walking: To Kyoto, back, & beyond. 2012 American Society of Limnology and Oceanography (ASLO) Aquatic Sciences Meeting, Otsu, Japan (Jul 2012).
  • Elser, J.J. Biological Stoichiometry in Ecology, Evolution, and Beyond. CONICET Centro Nacional Patagonico (CeNPat), Puerto Madryn, Argentina (Sep 2011).
  • Elser, J.J. "Phosphorus as a critical material". Critical Materials Flow in an Age of Constraint: Exploring Challenges & Solutions Across Materials (May 2011).
  • Elser, J.J. Biological Stoichiometry in Ecology, Evolution, and Beyond. European Congress on Ecological Modeling, Riva del Garda, Italy (May 2011).
  • Elser, J.J. Biological Stoichiometry in Ecology, Evolution, and Beyond. Universidad Nacional del Comahue, Barliloche, Argentina (Apr 2011).
  • Elser, J.J. Biological Stoichiometry in Ecology, Evolution, and Beyond. Kaiser Scholar Lectures, University of Wisconsin, Madison, WI (Mar 2011).
  • Elser, J.J., J.R. Corman, M. Edwards, and D. Childers. "Phosphorus, food, and our future: certainties and uncertainties in achieving a sustainable food system.". International Conference on Sustainability Science (ICOSSE), Tucson (Jan 2011).
  • Corman, J.R., S. Chandra, C. Davis, M. Dix, N. Gíron, E. Rejmánková, A. Roegner, J. Veselá, and J.J. Elser. Ecosystem effects of cultural eutrophication in a large, tropical lake. Annual meeting, American Geophysical Union, San Francisco, CA (Dec 2010).
  • Elser, J.J., and I. Loladze. "Ocean’s 16: Optimal protein:RNA ratio has near Redfield nitrogen:phosphorus ratio.". Annual meeting, American Geophysical Union, San Francisco, CA (Dec 2010).
  • Elser, J.J. Biological stoichiometry of nutrient limitation in ecology, evolution, and beyond. University Program in Ecology, Duke University, Durham, NC (Oct 2010).
  • Elser, J.J. Biological stoichiometry of nutrient limitation in ecology, evolution, and beyond. Gordon & Betty Moore Foundation, Marine Microbiology Initiative Investigators meeting, Palo Alto, C (Jul 2010).
  • Elser, J.J. Biological stoichiometry of nutrient limitation in ecology, evolution, and beyond. Thermal Biology Institute, Montana State University, Bozeman, MT (May 2010).
  • Corman J. R., V. Souza V., and J.J. Elser. "Interactions of biogeochemical cycles in oncoid microbialites from Cuatro Ciénegas, Mexico". Astrobiology Science Conference 2010, Clear Lake, Texas (Apr 2010).
  • Elser, J.J. Phosphorus, food, and our future. Public launch of Sustainable P Initiative, AZ Science Center (Apr 2010).
  • Elser, J.J. Biological stoichiometry of nutrient limitation in ecology, evolution, and beyond. Department of Biological Sciences, University of Alabama (Mar 2010).
  • Cease, A.J., J.J. Elser, J., L. Kang, S. Hao, and J.F. Harrison. 2010. "Searching for the key to locust outbreaks in the Inner Mongolia grasslands". Annual meeting, American Association for the Advancement of Science (Feb 2010).
  • Cease, A.J., J.J. Elser, J., S. Hao, L. Kang, and J.F. Harrison. Grasshopper developmental plasticity in heavily-grazed Asian Steppe pastures. Society of Integrative and Comparative Biology (Jan 2010).
  • Elser, J.J. Biological stoichiometry of nutrient limitation in ecology, evolution, and beyond. Divisional seminar, Division of Biological Sciences, UC-San Diego, San Diego, CA (Jan 2010).
  • Elser, J.J. Biological stoichiometry of nutrient limitation in ecology, evolution, and disease. Graduate Program in Biogeochemistry, Cornell University, Ithaca, NY (Oct 2009).
  • Elser, J.J. Biological stoichiometry of nutrient limitation in ecology, evolution, and beyond. Symposium on Integration of Evolutionary Biology and Ecosystem Ecology, Lake Lucerne, Switzerland (Oct 2009).
  • Elser, J.J. Ecological stoichiometry in grasslands and beyond. Regional & Global Network of Grassland Ecosystem Res. Symposium. Chinese Acad. of Sciences, Beijing (Aug 2009).
  • Mulder, C., and J.J. Elser. "Biological stoichiometry and the regulation of faunal allometric scaling: a new assessment in soil biota.". 10th International Congress of Ecology, Brisbane, Australia (Aug 2009).
  • Elser, J.J. "Biological stoichiometry: Coupling and decoupling of element cycles in ecological and evolutionary time,". Annual meeting of the Ecological Society of America, Albuquerque, NM (Jul 2009).
  • Mulder, C., and J.J. Elser. "Soil pH, ecological stoichiometry, and allometric scaling in soil biota.". Annual meeting of the Ecological Society of America, Albuquerque, NM (Jul 2009).
  • Wu, J., S. Naeem, J.J. Elser, Y. Bai, J. Huang, L. Kang, C. Clark, Q. Wang, Q. Pan, and X. Han. "Testing biodiversity-ecosystem functioning relationships: Overview of the inner Mongolia grassland removal experiment.". Annual meeting of the Ecological Society of America, Albuquerque, NM (Jul 2009).
  • Han, X., Y. Bai, J. Huang, J. Wu, J. Elser, and X. Lü. "Plant functional group removal alters soil nitrogen transformation and plant nitrogen use efficiency in a Eurasian grassland.". Annual meeting of the Ecological Society of America, Albuquerque, NM (Jul 2009).
  • Glass, J., F. Wolfe-Simon, J.J. Elser, and A. Anbar. "Molybdenum storage: Connections to the nitrogen, carbon and sulfur cycles.". 6th Annual Southern California Geobiology Symposium. April 2009 (Apr 2009).
  • Elser, J.J. Biological stoichiometry of nutrient limitation in ecology, evolution, and disease. University of Illinois, Champaign-Urbana (Mar 2009).
  • Elser, J.J. Biological stoichiometry of nutrient limitation in ecology, evolution, and disease. UC-Davis Centennial Speaker Series, Div. of Environmental Studies (Feb 2009).
  • Elser, J.J. Biological stoichiometry of nutrient limitation in ecology, evolution, and disease. Center for Biological Physics "Chalk Talk", Arizona State University (Feb 2009).
  • Cease, A., S. Hao, J.J. Elser, L. Kang, J.F. Harrison. "High density and high nitrogen: A dual stressor for grasshoppers". Annual meeting of the Society for Integrative and Comparative Biology, Boston, MA (Feb 2009).
  • Elser, J.J. Life under extreme phosphorus limitation: effects on ecosystems and evolution at Cuatro Cienegas. Mexican Congress of Ecology, Merida, Mexico (Nov 2008).
  • Anbar, Ariel, Wolfe-Simon, Felisa, Elser, James. Elements of life. Annual meeting of the Geological Society of America (Oct 2008).
  • Elser, J.J. Biological stoichiometry in ecology, evolution, and disease. Distinguished alumni lecturer, Department of Biology, University of Notre Dame (Oct 2008).
  • Elser, J.J. Ecological stoichiometry of nutrient limitation in lakes and beyond. LEREC conference on "Ecological stoichiometry and feedbacks in aquatic food webs" (Oct 2008).
  • Elser, J.J. Biological stoichiometry in ecology, evolution, and disease. Eminent Ecologist lecture series, Ecology Center, Utah State University, Logan, UT (Feb 2008).
  • Elser, James. "Climate Change Effects on Aquatic Ecosystems: A Stoichiometric Perspective" (CLIMAQS) (Nov 2007).
  • Elser, James. Master Class on "Climate Change Effects on Aquatic Ecosystems: A Stoichiometric Perspective (CLIMAQS) (Nov 2007).
  • Elser, James. Biological Stoichiometry in Ecology and Evolution. Weekly seminar (Oct 2007).
  • Elser, James. Biological Stoichiometry in Ecology and Evolution. Special lecture (May 2007).
  • Dunning, K, Kuang, Y, Elser, James. EFFECTS OF LIGHT INTENSITY ON DAPHNIA DYNAMICS AND COEXISTENCE: A STOICHIOMETRIC PERSPECTIVE. 2007 annual meeting of the American Society of Limnology and Oceanography (Feb 2007).
  • Elser, James, Kyle, M, Smith, M, Nagy, J. Tumor limnology: a test of the growth rate hypothesis using paired biopsy samples of human tumors. Annual meeting of the American Society of Limnology and Oceanography (Feb 2007).
  • Engstrom, M, Watts, J, Elser, James. AMPHIPODS ON A STOICHIOMETRIC KNIFE EDGE? EFFECTS OF LOW FOOD C:P RATIO ON GROWTH & SURVIVAL IN HYALELLA AZTECA. 2007 annual meeting of the American Society of Limnology and Oceanography (Feb 2007).
  • Kyle, M, Elser, James. MICROBIAL NUTRIENT LIMITATION IN COLORADO ALPINE LAKES ACROSS A GRADIENT OF ATMOSPHERIC NITROGEN DEPOSITION. 2007 annual meeting of the American Society of Limnology and Oceanography (Feb 2007).
  • Steger, L, Kyle, M, Watts, J, Elser, James. PHYTOPLANKTON NUTRIENT LIMITATION IN COLORADO ALPINE LAKES ACROSS A GRADIENT OF ATMOSPHERIC NITROGEN DEPOSITION. 2007 annual meeting of the American Society of Limnology and Oceanography (Feb 2007).
  • Elser, James, Kyle, M, Smith, M, Nagy, J. Biological stoichiometry of tumors: a test of the growth rate hypothesis using paired biopsy samples of human tumors. Annual meeting of the Society for Integrative and Comparative Biology (Jan 2007).
  • Elser, James. Department of Ecology, Evolution, and Marine Biology, UCSB (Apr 2006).
  • Elser, James. Biological Stoichiometry in Ecology and Evolution. Department of Ecology, Evolution, and Marine Biology seminar series, UCSB (Apr 2006).
  • Elser, James. Biological Stoichiometry in Ecology and Evolution. National Center for Ecological Analysis and Synthesis EcoLunch seminar series (Apr 2006).
  • Elser, James. Department of Ecology and Evolution (Mar 2006).
  • Elser, James. Biological Stoichiometry in Ecology and Evolution. Virginia Institute of Marine Science seminar series (Feb 2006).
  • Elser, James. Virginia Institute of Marine Science (Feb 2006).
  • Kuang, Yang, Elser, James, Newman, T, Nagy, J, Smith, V, Smith, M. Toward an integrative theory of within-host disease dynamics. Biomedical Informatics Symposium, Arizona State University (Jan 2006).
  • Elser, James. Biological Stoichiometry in Ecology and Evolution. Department of Zoology seminar series (Jan 2006).
  • Elser, James. Department of Zoology (Jan 2006).
  • Elser, James. Graduate student-invited speaker, Department of Biology (Aug 2005).
  • Elser, James. Biological stoichiometry in ecology and evolution. Department of Biology Seminar (Aug 2005).
  • Elser, James. Biological stoichiometry: a chemical bridge between ecosystem ecology and evolutionary biology. Invited talk in the Vice-President's Symposium, joint meeting of the American Society of Naturalists and the Society for the Study of Evolution (Jun 2005).
  • Elser, James. Department of Ecology and Evolutionary Biology (May 2005).
  • Elser, James. Biological stoichiometry in ecology and evolution. Department of Ecology and Evolutionary Biology Seminar (May 2005).
  • Elser, James. Department of Biology (Apr 2005).
  • Elser, James. Department of Biology (Feb 2005).
  • Elser, James. Department of Zoology (Dec 2004).
  • Elser, James. Graduate student-invited speaker, University of Gronigen (Nov 2004).
  • Elser, James. Institute for Biodiversity and Ecosystem Dynamics, University of Amsterdam (Nov 2004).
  • Elser, James. Keynote speaker, Symposium on Intersection of Functional Ecology and Evolution, Department of Wildlife and Fisheries Biology (Nov 2004).
  • Elser, James. Biological stoichiometry in ecology and evolution. Departmental seminar, Institute for Biodiversity and Ecosystem Dynamics, University of Amsterdam (Nov 2004).
  • Elser, James. Biological stoichiometry in ecology and evolution. Departmental seminar, University of Gronigen (Nov 2004).
  • Elser, James. Biological stoichiometry: theory and application for a multi-dimensional and changing world. Symposium on Intersection of Functional Ecology and Evolution, Department of Wildlife and Fish. Biology, OSU (Nov 2004).
  • Elser, James. Symposium on Intersection of Functional Ecology and Evolution. Department of Wildlife and Fisheries Biology (Nov 2004).
  • Elser, James. Woodstoich 2004: The Present and Future of Ecological Stoichiometry. International research workshop (Aug 2004).
  • Elser, James, Watts, J, Schampel, J, Farmer, J. Early food-webs on a stoichiometric knife-edge? Experimental data from a modern stromatolite-based ecosystem. Annual meeting, Ecological Society of America (Aug 2004).
  • Elser, James. Biological stoichiometry in ecology and evolution. Departmental seminar, Institute for Marine Studies (Apr 2004).
  • Elser, James. Institute for Marine Studies (Apr 2004).
  • Elser, James. Forest Research Institute (Mar 2004).
  • Elser, James. Biological stoichiometry in ecology and evolution. Departmental Seminar Series, Forest Research Institute (Mar 2004).
  • Elser, James. Netherlands Institute of Ecology, Nieursluis (Nov 2003).
  • Elser, James. Institute for Marine Studies (Nov 2003).
  • Elser, James. Invited plenary speaker, Global Ecology Symposium, Wageningen (Nov 2003).
  • Elser, James. Limnological Insitute, University of Konstanz (Oct 2003).
  • Elser, James. EAWAG (Oct 2003).
  • Elser, James. Department of Systems Ecology, Stockholm University (Sep 2003).
  • Elser, James. Department of Biology, University of Oslo (Sep 2003).
  • Elser, James. Institute of Limnology, Uppsala University (Sep 2003).
  • Elser, James. Invited plenary speaker, annual meeting of the American Society of Limnology and Oceanography (Feb 2003).
  • Elser, James. Department of Ecology and Evolution (Feb 2003).
  • Elser, James. Department of Geology (Jan 2003).
  • Elser, James. Department of Biological Sciences (Jun 2002).
  • Elser, James. Institute of Ecology and Evolution, Autonomous University of Mexico (UNAM) (May 2002).
  • Elser, James. Ecology, Theology, and Judeo-Christian Environmental Ethics. Lilly Fellows Program conference, University of Notre Dame (Feb 2002).
  • Elser, James. Dauphin Island Sea Lab (Feb 2002).
  • Elser, James. Graduate Program in Hydrologic Sciences (Dec 2001).
  • Elser, James. Department of Biology (Sep 2001).
  • Elser, James. Graduate student-invited speaker, Institute of Ecology (Mar 2001).
  • Elser, James. Invited plenary speaker, Gordon Research Conference on Plant-Herbivore Interactions (Mar 2001).
  • Elser, James. Invited plenary speaker, Annual meeting of the Scandinavian Ecology Society (OIKOS) (Feb 2001).
  • Elser, James. Ecology, Evolution, and Behavior Program (Nov 2000).
  • Elser, James. Department of Ecology, Evolution, and Behavior (Sep 2000).
  • Elser, James. Stoichiometric Constraints on C sequestration in Ecosystems. An international workshop on ecological stoichiometry organized by D. Hessen and J. Bengsston, University of Oslo (May 2000).
  • Elser, James. Ecological Determinants of the Oceanic Carbon Cycle. Invited plenary speaker, research integration workshop, sponsored by NSF Biological Oceanography program (Mar 2000).
  • Elser, James, Hayakawa, H, Urabe, J. Nutrient limitation reduces food quality for zooplankton: responses of Daphnia growth to short-term phosphorus amendment of natural seston. Annual meeting, Ecological Society of America
  • Clasen, J, Elser, James. Does phytoplankton nutrient status affect viral infections?. Annual meeting, American Society of Limnology and Oceanography
  • Elser, James, Gorokhova, E, Dowling, T, Crease, T, Weider, L. The genetic control of chemical factors in the environment: Stoichiometric impacts of rDNA intergenic spacer shifts within a Daphnia clone under divergent selection for production rate. Annual meeting, American Society of Limnology and Oceanography
  • Elser, James, Kyle, M, Schampel, J, Watts, J. Ecological stoichiometry of stromatolitic cyanobacteria-diatom mats and hydrobiid snail grazers in thermal springs at Cuatro Cienegas, Mexico. 2002 Astrobiology Science Conference, NASA Ames Research Center
  • Elser, James, Kyle, M, Schampel, J, Watts, J. Stoichiometric response of cyanobacteria and diatom mats to nutrient additions in a shallow saline pond, Cuatro Cienegas, Mexico. Annual meeting, American Society of Limnology and Oceanography
  • Elser, James, Sterner, R. The Reiners road map: where we've been, where we're going in the search for a complementary stoichiometry paradigm. Annual meeting, Ecological Society of America
  • Anbar, Ariel, Wolfe-Simon, Felisa, Elser, James. Elements of life. Annual meeting of the Geological Society of America
  • Smith, Val, Martín-Cereceda, M., Kyle, Marcia, Elser, James. Stoichiometry of C:N::P in heterotrophic bacteria: an example of elemental homeostasis in microorganisms. Congreso Sociedad Española de Microbiología
  • Elser, James. Biological stoichiometry from genes to ecosystems.
  • Elser, James. Biological stoichiometry from genes to ecosystems. Global Ecology Symposium
  • Elser, James. Biological stoichiometry from genes to ecosystems: ideas, plans, and realities. Invited talk in society-wide special symposium, annual meeting of the Society for Integrative and Comparative Biology
  • Elser, James, Schampel, J, Watts, J, Garcia-Pichel, F, Wade, B, Farmer, J, Souza, V, Eguiarte, L. Effects of grazers and PO4 enrichment on biomass, C:N:P stoichiometry, and microbial community structure of oncoid stromatolites at Cuatro Cienegas, Coahuila, Mexico. Annual meeting, American Society of Limnology and Oceanography
  • Elser, James. Biological stoichiometry in ecology and evolution. Departmental seminar, Department of Zoology
  • McCauley, E, Hessen, D, Elser, James, Sterner, R, Andersen, T, Faafeng, B, Downing, J. Effects of anthropogenic N deposition on nutrient stoichiometry and zooplankton: data from southern Norway. Annual meeting, American Society of Limnology and Oceanography
  • Elser, James, Kyle, M, Yoshida, T, Makino, W, Andersen, T, Urabe, J. Reduced light increases herbivore production due to stoichiometric effects of light: nutrient balance. Annual meeting, American Society of Limnology and Oceanography
  • Frost, P, Elser, James. Poor elemental food quality affects mayfly growth. Annual meeting, American Society of Limnology and Oceanography
  • Gudex, L, Urabe, J, Elser, James. Daphnia growth on different size fractions of ambient and aged seston: effects of particle size and elemental and biochemical composition. Annual meeting, American Society of Limnology and Oceanography
  • Nisbet, R, Muller, E, McCauley, E, Kooijman, S, Elser, James. Modeling the effects of herbivore stoichiometry on the stability of plant-herbivore systems. Annual meeting, American Society of Limnology and Oceanography
Service
  • University of Arkansas, tenure packet reviewer (2013 - Present)
  • Humanist Society of Greater Phoenix, Mesa, AZ., Meeting speaker (2011 - Present)
  • Paradise Valley Rotary Club, Paradise Valley, AZ, Meeting speaker (2011 - Present)
  • ASU STEM-Net annual meeting, Plenary speaker (2011 - Present)
  • AGU annual meeting, Special Session Organizer (2010 - Present)
  • Program review, Department of Biology, University of Notre Dame, external reviewer (2010 - Present)
  • "A weak link: phosphorus scarcity and our food chain." CSPO Science Café, AZ Science Center 2010 "Phosphorus, food, and our future." AZ Science Center., speaker (2010 - Present)
  • NASA press conference on arsenic-based life, expert on phosphorus in ecology & evolution (2010 - Present)
  • Gordon Research Conference, Metabolic Ecology, Co-chair (2010 - Present)
  • Gordon Research Conference, Metabolic Ecology, Co-chair (2010 - Present)
  • Michigan State University, tenure packet reviewer (2010 - Present)
  • "Phosphorus, food, and our future." AZ Science Center., speaker (2010 - Present)
  • American Naturalist, Associate Editor (2010 - Present)
  • Meetings committee, American Society of Limnology and Oceanography, chair (2009 - Present)
  • Meetings committee, American Society of Limnology and Oceanography, chair (2009 - Present)
  • Meetings committee, American Society of Limnology and Oceanography, chair (2009 - Present)
  • Obama Scholars program, mentor (2009 - Present)
  • Professor of the Year selection committee, member (2009 - Present)
  • Professor of the Year selection committee, member (2009 - Present)
  • Distinguished Teaching Academy, member (2009 - Present)
  • Distinguished Teaching Academy, member (2009 - Present)
  • Research and Training Initiatives committee, chair (2009 - Present)
  • Advisory Committee for Origins Institute, member (2008 - Present)
  • Origins Institute advisory committee, member (2008 - Present)
  • Origins Institute advisory committee, member (2008 - Present)
  • Origins Institute advisory committee, member (2008 - Present)
  • Darwinfest organizing committee, member (2008 - Present)
  • OVPREA Limited Submissions, reviewer (2008 - Present)
  • Search committee for chair of Department of Interdisciplinary Natural Sciences (DINS), ASU West, member (2007 - Present)
  • Ecology, Evolution, and Environmental Science (EEES) Personnel Committee (SOLS), Member (2006 - Present)
  • Nature, Reviewer (2006 - Present)
  • Various disciplinary journals (3-5 manuscripts per year), Reviewer (2006 - Present)
  • NCEAS working group, Invited Participant (2005 - Present)
  • Research and Training Initiatives, Associate Dean (2005 - Present)
  • Research and Training Initiatives, Associate Dean (2005 - Present)
  • Research and Training Initiatives, Associate Director (2005 - Present)
  • SOLS Executive Committee, Member (2005 - Present)
  • SOLS Executive Committee, member (2005 - Present)
  • Ecology Letters, Associate Editor (2002 - Present)
  • Ecology Letters, Associate Editor (2002 - Present)
  • Association of the Sciences of Limnology & Oceanography, President (2014 - 2016)
  • National Science Foundation, Reviewer (2010 - 2015)
  • Various disciplinary journals (10-12 manuscripts per year), Reviewer (2010 - 2015)
  • Fourth International Phosphorus Summit (Montpelier, France), Scientific Organizing Committee (2013 - 2014)
  • Association of the Sciences of Limnology & Oceanography, President-elect (2012 - 2014)
  • Lisa Dent Fellowship selection committee, Member (2014 - 2014)
  • Annual meeting, American Society of Limnology and Oceanography (Otsu, Japan, 2012), Committee member, scientific organizing committee (2011 - 2012)
  • Gordon Research Conference, Metabolic Ecology, Co-chair (2010 - 2012)
  • SOLS Ask-a-Biologist Program, Answerer of Questions (2009 - 2011)
  • American Naturalist, Associate Editor (2010 - 2011)
  • Ecology Letters, Associate Editor (2002 - 2011)
  • Research and Training Initiatives, Associate Dean (2005 - 2011)
  • SOLS Executive Committee, Member (2005 - 2011)
  • Frontiers in Life Sciences planning committee (Sustainable P Summit), Faculty Co-Advisor (2010 - 2011)
  • National Science Foundation, Reviewer (2010 - 2010)
  • Various disciplinary journals (10-12 manuscripts per year), Reviewer (2010 - 2010)
  • School of Life Sciences, Acting Dean (2009 - 2010)
  • Gordon Research Conference, Metabolic Basis of Ecology (University of New England), Vice-chair (2008 - 2010)
  • "Think Tank on Macronutrient Cycles", Royal Society NERC / GERC, London, UK., participant (2010 - 2010)
  • National Science Foundation, Reviewer (2009 - 2009)
  • SOLS Ask-a-Biologist Program, Answerer of Questions (2009 - 2009)
  • Woodstoich 2009: The present and future of biological stoichiometry, Co-organizer (2009 - 2009)
  • Nature, Reviewer (2006 - 2009)
  • Various disciplinary journals (5-8 manuscripts per year), Reviewer (2006 - 2009)
  • Darwinfest organizing committee, member (2008 - 2009)
  • Arizona Water Institute, liason (2006 - 2009)
  • Ecology Letters, Associate Editor (2002 - 2009)
  • University of California - Santa Barbara, tenure packet reviewer (2009 - 2009)
  • University of California - Santa Barbara, External reviewer for tenure and promotion (2009 - 2009)
  • Ecology, Evolution, and Environmental Science (EEES) Personnel Committee (SOLS), Member (2006 - 2009)
  • NSF-funded forum on The Future of Synthesis in Ecology, participant (2008 - 2008)
  • Michigan State University, tenure packet reviewer (2008 - 2008)
  • National Science Foundation Ecological Studies panel, panel member (2008 - 2008)
  • National Science Foundation Site Review Team (McMurdo LTER), member (2008 - 2008)
  • CLAS committee on implementation of Science and Society requirement, College Committee (2005 - 2007)
  • CLAS committee on implementation of Science and Society requirement, Committee Member (2005 - 2007)
  • OVPREA Internal Review committee, ASU member (2007 - 2007)
  • American Society of Limnology and Oceanography, Co-organizer (2004 - 2007)
  • ASU Internal Submissions review committee for SFAz CAA awards, Reviewer (2007 - 2007)
  • PNAS, Reviewer (2006 - 2006)
  • SOLS Ask-a-Biologist Program, Answerer of Questions (2006 - 2006)
  • Science, Reviewer (2006 - 2006)
  • OVPREA ad hoc committee to develop policy on Classified Research, Committee member (2006 - 2006)
  • Ad hoc Theoretical Biology organizing committee, Chair (2004 - 2006)
  • CLAS Committee on Implementing Science and Society Requirement, Member (2005 - 2006)
  • Search Committee, Associate Director of Graduate Programs, Chair (2005 - 2005)
  • NSF CAREER program, Reviewer (2005 - 2005)
  • University of Oklahoma, External reviewer for tenure and promotion (2005 - 2005)
  • U.S. organizer for NSF-funded international exchange, Organizer (2002 - 2005)
  • Search Committee for SOLS Associate Director for Graduate Programs, Chair (2005 - 2005)
  • University of Oklahoma, External reviewer of tenure/promotion application (2005 - 2005)
  • School of Life Sciences Research and Training Initiatives committee, Committee member (2004 - 2005)
  • National Science Foundation OISE Partnerships in International Research and Education (PIRE) review panel, Panelist (2005 - 2005)
  • Intel International Science Fair, Judge (2005 - 2005)
  • National Science Foundation Partnerships for International Research and Education, Panelist (2005 - 2005)
  • School of Life Sciences Research and Training Initiatives committee, (2004 - 2005)
  • ASLO winter meeting, Special Session Organizer (2005 - 2005)
  • Ecological Applications, Associate editor (2003 - 2004)
  • Limnology and Oceanography special issue on Biocomplexity, Associate Editor (2003 - 2004)
  • Ecological Applications, Associate Editor (2001 - 2004)
  • Honeybee Reproductive Physiologist Search Committee, Member (2004)
  • National Institutes of Environmental Health, Superfund Basic Research Grant Program, Reviewer (2004)
  • Norwegian Center for Advanced Study "Woodstoich" conference, Co-organizer (2004)
  • Oikos, Guest Associate Editor (2004)
  • Various disciplinary journals (3-5 manuscripts per year), Reviewer (2004)
  • Center for Advanced Study of the Norwegian Academy of Letters and Sciences and Department of Biology, Visiting Research Fellow and Fulbright Scholar (2003 - 2003)
  • Nominations Committee for ASLO elected offices, Chair (2002 - 2003)
  • American Naturalist, Associate Editor (2000 - 2003)
  • American Naturalist, Associate Editor (2003)
  • CLAS Dean's Committee on Reorganization of the Life Sciences, Committee member (2003)
  • EPA, Reviewer (2003)
  • Nominations Committee, American Society of Limnology and Oceanography, Chair (2003)
  • Undergraduate Programs, Director (2003)
  • Various disciplinary journals (3-5 manuscripts), Reviewer (2003)
  • Dean's Committee on Reorganization of the Life Sciences, College Committee (2002 - 2003)
  • UG Programs Director, (1999 - 2003)
  • Biology Department Undergraduate Programs Committee, (1998 - 2003)
  • ASLO Student Poster Awards, Judge (2002 - 2002)
  • NASA Astrobiology Science Steering Group and Mars Exploration Payload Analysis Group, Member (2002 - 2002)
  • University of Kansas, External reviewer for tenure and promotion (2002 - 2002)
  • Biology Department Advisory Committee, (2000 - 2002)
  • Oecologia, Associate Editor (1999 - 2002)
  • ASLO summer meeting, Special Session Organizer (2002 - 2002)
  • Biology Department Personnel Committee, (2001 - 2002)
  • National Science Foundation Integrated Research Challenges in Environmental Biology (IRCEB) review panel, Panelist (2001 - 2001)
  • ASLO-AGU winter meeting, Special Session Organizer (2001 - 2001)
  • Biology and Society Steering Committee, (1998 - 2000)
  • U.S. Congressional briefing on Biocomplexity, on behalf of the Ecological Society of America, (2000 - 2000)
  • National Science Foundation, Reviewer (Present)