Within this program, the trace element and stable isotope composition of biological tissues are characterized to better understand the flow of mass and energy within ecosystems, and the life history strategies of organisms that live within them.

• DeMots* R.L., Novak J.M, Gaines K.F., Gregor A.J., Romanek C.S. and Soluk D.A 2010 Tissue-diet discrimination factors and turnover of stable carbon and nitrogen isotopes in white-footed mice (Peromyscus leucopus), Canadian Journal of Zoology 88, 961-967.
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  Green* A., Buhlmann K., Hagen C., Romanek C.S. and Gibbons J.W. 2010 Mercury contamination in turtles and implications for human health. Journal of Environmental Health 72, 14-22.
• Willson J.D., Winne C.T., Pilgrim* M.A., Romanek C.S. and Gibbons J.W. 2010 Effects of terrestrial resource pulses on trophic niche width and overlap in two sympatric aquatic snake species: A stable isotope approach. Oikos 119, 1161-1171.
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  Guerra A., Rodriguez-Navarro A., Gonzales A.F., Romanek C.S., Alvarez-Lloret P. and Pierce G.J. 2010 Life history traits of the giant squid Architeuthis dux revealed from stable isotope signatures records in beak, ICES (International Council for the Exploration of the Sea) Journal of Marine Science 67, 1425-1431.
  
  
  
  *Jin V.L., Romanek C.S., Donovan L.A. and Sharitz R.R. 2011 Soil nitrogen availability and in situ nitrogen uptake by Acer rubrum L. and Pinus palustrus Mill. in the southeastern U.S. Coastal Plain, The Journal of the Torrey Botanical Society, accepted 6/16/2010.
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  Arnay- de- la- Rosa M., González-Reimers E., Yanes* Y., Velasco-Vázquez J., Romanek C.S. and Noakes J.E. 2010Paleodietary analysis of the Prehistoric population of  the Canary Islands inferred from stable isotopes (carbon, nitrogen and hydrogen)  in bone collagen. Journal of Archaeological Sciences 37, 1490-1501.
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  Arnay-de-la-Rosa, M., Gamez-Mendoza, A., Navarro-Mederos, J.F., Hernández-Marrero, J.C., Fregel, R., Yanes, Y., Galindo-Martín, L., Romanek, C.S., González-Reimers, E.  2009  Dietary patterns during the early prehispanic settlement in La Gomera (Canary Islands). Journal of Archaeological Sciences 36, 1972-1981.
• Yanes* Y., Romanek C.S., Delgado A., Brant H.A., Noakes J.E., Alonso M.R. and Ibáñez M.  2009  Oxygen and carbon stable isotopes of modern land snail shells as environmental indicators along altitude from a low-latitude oceanic island.Geochim. Cosmochim. Acta 73, 4077-4099.
• Britzke E.R., Loeb S.C., Romanek C.S., Hobson K.A., and Vonhof M.J.  2009  Assigning origins of bats using stable hydrogen isotope analyses: An investigation of 4 species in the eastern United States, Journal of Mammalogy, 90, 743-751.
• Graves G.R. and Romanek C.S.  2009  Rapid turnover of carbon and nitrogen isotopes in tissues of a migratory songbird on breeding territories. Ecological Applications, 19, 1264-1273.
• Carroll* M. and Romanek C.S.  2008  Shell layer variation in trace element concentration for the bivalve, Elliptio complanata.Geo-Marine Letters 28, 369-381.
• Unrine* J.M., Hopkins W.A., Romanek C.S. and Jackson B.P.  2007  Bioaccumulation of trace elements in omnivorous amphibian larvae: Implications for amphibian health and contaminant transport. Environmental Pollution, 149, 182-192.
• Bergeron C.M., Husak J.F., Unrine* J.M., Romanek C.S. and Hopkins W.A.  2007  Influence of feeding ecology on blood mercury concentrations in four species of turtles. Environ. Tox. Chem. 26, 1733-1741.
• Novak J.M., Gaines K.F., Cumbee Jr. J.C., Mills G.L., Rodriguez Navarro* A. and Romanek C.S.  2006  Clapper rails as indicator species of estuarine marsh health.  In Studies in Avian Biology, (eds) R. Greenberg and S. Droege, 32, 270-281.
• Unrine* J.M., Jackson B.P., Hopkins W.A. and Romanek C. 2006  Isolation and partial characterization of proteins involved in maternal transfer of selenium in the western fence lizard (Sceloporus occidentalis). Environ. Toxicol. &Chem., 25, 1864-1867.
• Rodriguez Navarro* A., Romanek C.S. and Gaines K.  2006 Effect of in ovo exposure to PCBs and Hg on clapper rail bone mineral chemistry from a contaminated salt marsh in coastal Georgia. ES&T.40, 4936-4942.
• Carroll* M., Romanek C.S. and Paddock* L.  2006  The relationship between the hydrogen and oxygen isotopes of freshwater bivalve shells and their home streams. Chemical Geology 234, 211-222.
• Shaw-Allen, P.L., Romanek C.S., Bryan A.L. Jr., Brant H. and Jagoe C.H. 2005 Shifts in relative tissue 15N values in snowy egret nestlings with dietary mercury exposure: A marker for increased protein degradation. Environ. Sci. & Technol. 39, 4226-4233.
• Qin S., Wilson M., Romanek C.S. and Hobson K.A. 2004Time series analysis of elemental data collected from whale baleen. Environ. Ecol. Stat. 11, 323-337.
• Rodriguez-Navarro, A.B., Gaines, K.F., Romanek, C.S. and Masson, G.R. 2002. Mineralization of eggshell in a contaminated salt marsh system. Arch. Environ. Contamin. Toxicol. 4, 449-460.
• Graves G.R., Romanek C.S. and Rodriguez Navarro A. 2002.Stable isotope signature of philopatry and dispersal in a migratory songbird. Proceedings of the National Academy of Sciences USA 99, 8096-8100.
• Gaines, K.F., Romanek, C.S., Boring, C.S., Lord, C.G., Gochfeld, M. and Burger, J. 2002. Using raccoons as an indicator species for metal accumulation across trophic levels: A stable isotope approach. J. Wildlife Manage. 66, 811-821.
• Romanek, C.S., Gaines, K.F., Bryan Jr., A.L. Brisbin Jr., I.L.2000. Foraging ecology of the endangered Wood Stork recorded in the stable isotope signature of feathers. Oecologia125, 584-594.
• Gauldie, R.W. and Romanek, C.S. 1998. Orange Roughy otolith growth rates: A direct experimental test of the Romanek-Gauldie otolith growth model. Comp. Biochem. Physiol. A, 120, 649-653.
• Romanek, C.S. and Gauldie, R.W. 1996. A predictive model of otolith growth in fish based on the chemistry of the endolymph.Comp. Biochem. Physiol. 114A, 71-79.