Animal ecophysiology
Publications listed in chronological order; PDF indicates that a copy of the publication is available in the Publications menu
290. Sponheimer, M, Robinson, T., Roeder, B., Hammer, J., Ayliffe, L., Passey, B., Cerling, T., Dearing, D., and Ehleringer. 2003. Digestion and passage rates of grass hays by llamas, alpacas, goats, horses, and rabbits. Small Ruminant Research 2305:1-6 PDF
293. Sponheimer, M., T. Robinson, L. Ayliffe, B. Roeder, J. Hammer, B. Passey, A. West, T.E. Cerling, M.D. Dearing, and J.R. Ehleringer. 2003. Nitrogen isotopes in mammalian herbivores: hair d15N values from a controlled-feeding study. International Journal of Osteoarchaeology 13:80-87. PDF
295. Sponheimer, M., T. Robinson, L. Ayliffe, B. Roeder, L. Shipley, E. Lopez, J. Hammer, B. Passey, T.E. Cerling, M.D. Dearing, and J.R. Ehleringer. 2003. An experimental study of carbon isotope fractionation in the hair and feces of mammalian herbivores. Canadian Journal of Zoology 81:871-876. PDF
307. Sponheimer, M., T.F. Robinson, B.L. Roeder, B.H. Passey, L.K. Ayliffe, T.E. Cerling, M.D. Dearing, and J.R. Ehleringer. 2003. An experimental study of nitrogen flux in llamas: is 14N preferentially excreted? Journal of Archaeological Science 30:1649-1655. PDF
310. Ayliffe, L.K., T.E. Cerling, T. Robinson, A. West, M. Sponheimer, B. Passey, J. Hammer, B. Roeder, M.D. Dearing, and J.R. Ehleringer. 2004. Turnover of carbon isotopes in tail hair and breath CO2 of horses fed an isotopically varied diet. Oecologia 139:11-22. PDF
312. Coltrain, J.B., M.D. Dearing, J.M. Harris, J. Ward, T.E. Cerling, J. Allen, and J.R. Ehleringer. 2004. Trophic level relationships among Rancho La Brea fauna and their implications for the paleocology of the late Pleistocene based on bone collagen stable carbon and nitrogen isotope chemistry. Palaeogeography, Palaeoclimatology, and Palaeoecology 205:199-219. PDF
316. West, A.G., L.K. Ayliffe, T.E. Cerling, T.F Robinson, B. Karren, M.D. Dearing, and J.R. Ehleringer. 2004. Short-term diet changes revealed using stable carbon isotopes in horse tail-hair. Functional Ecology 18:616-624. PDF
324. Baugh, A.T., A.G. West, E.A. Rickart, T.E. Cerling, J.R. Ehleringer, and M.D. Dearing. 2004. Stable isotope evidence for ecological separation of syntopic shrews (genus Sorex). Southwestern Naturalist 49:493-500. PDF
327. Ward, J., J.M. Harris, T.E. Cerling, A. Wiedenhoeft, M.J. Lott, M.D. Dearing, J.B. Coltrain, and J.R. Ehleringer. 2005. Carbon starvation in glacial trees at the La Brea tar pits, southern California. Proceedings of the National Academy of Sciences 102:690-694. doi 10.1073/pnas.0408315102 PDF
338. Bowen, G.J., L. Chesson, K. Nielson, T.E. Cerling, and J.R. Ehleringer. 2005. Treatment methods for the determination of d2H and d18O of hair keratin by continuous-flow isotope ratio mass spectrometry. Rapid Communications in Mass Spectrometry 19:2371-2378. doi: 10.1002/rcm.2069. PDF
343. Passey, B.H., T.F. Robinson, L.K. Ayliffe, T.E. Cerling, M. Sponheimer, M.D. Dearing, B.L. Roeder, and J.R. Ehleringer. 2005. Carbon isotope fractionation between diet, breath CO2, and bioapatite in different mammals. Journal of Archaeological Science 32:1459-1470. PDF
353. Robinson, T.F., M. Sponheimer, B.L. Roeder, B. Passey, T.E. Cerling, M.D. Dearing, and J.R. Ehleringer. 2006. Digestability and nitrogen retention in llamas and goats fed alfalfa, C3 grass, and C4 grass hays. Small Ruminant research 64:162-168. PDF
354. Sponheimer, M., T.F. Robinson, T.E. Cerling, L. Tegland, B.L. Roeder, L. Ayliffe, M.D. Dearing, and J.R. Ehleringer. 2006. Turnover of stable carbon isotopes in muscle, liver, and breath CO2 of alpacas (Lama pacos). Rapid Communications in Mass Spectrometry 20: 1395-1399. PDF
366. Cerling, T.E., L.K. Ayliffe, M.D. Dearing, J.R. Ehleringer, B.H. Passey, D.W. Podlesak, A.-M. Torregrossa, and A.G. West. 2007. Determining biological tissue turnover using stable isotopes: the reaction progress variable. Oecologia 151:175-189. DOI: 10.1007/s00442-006-0571-4 PDF
375. Cerling, T.E., G.J. Bowen, J.R. Ehleringer, and M. Sponheimer. 2007. The reaction progress variable and isotope turnover in biological systems. In Dawson, T.E., and R.T.W. Siegwolf (eds.), Stable isotopes as indicators of ecological change. Academic Press, San Diego. PDF
384. Podlesak, D.W., A.-M. Torregrossa, J.R. Ehleringer, M.D. Dearing, B.H. Passey, and T.E. Cerling. 2008. Turnover of oxygen and hydrogen isotopes in the body water, CO2, hair, and enamel of a small mammal. Geochimica et Cosmochima Acta 72:19-35. PDF
386. Ehleringer, J.R., G.J. Bowen, L.A. Chesson, A.G. West, D. Podlesak, and T.E. Cerling. 2008. Hydrogen and oxygen isotopes in human hair are related to geography. Proceedings of the National Academy of Sciences USA 105:2788-2793. PDF
398. Bowen, G.J., J.R. Ehleringer, L.A. Chesson, A. Thompson, D. Podlesak, and T.E. Cerling. 2009. Dietary and physiological controls on the hydrogen and oxygen isotope ratios of hair from mid-20th century indigenous populations. American Journal of Physical Anthropology 139:494-504. doi:10.1002/ajpa.21008. PDF
400. Cerling, T.E., G. Wittemyer, J.R. Ehleringer, C.H. Remien, and I. Douglas-Hamilton. 2009. History of animals using isotope records (HAIR): a 6-year dietary history of one family of African elephants. Proceedings of the National Academy of Sciences USA 106:8093-8100. doi: 10.1073/pnas0902192106. PDF
406. Thompson, A.H., L.A. Chesson, D.W. Podlesak G.J. Bowen, T.E. Cerling, and J.R. Ehleringer. 2010. Stable isotope analysis of modern human hair collected along an Asian geographic transect. American Journal of Physical Anthropology 141:440-451. PDF
415. O’Grady, S.P., A.R. Wende, C.H. Remien, L.O. Valenzuela, L.E. Enright, L.A. Chesson, E.D. Abel, T.E. Cerling, and J.R. Ehleringer. 2010. The stable isotope signature of body water as a biomarker of aberrant water homeostasis: diabetes mellitus, an index case. PLoS ONE 5(7):e11699. doi:10.1371/journal.pone.0011699. PDF
421. O’Grady, S.P., L.E. Enright, J.E. Barnette, T.E. Cerling, and J.R. Ehleringer. 2010. Accuracy and precision of a laser-spectroscopy approach to the analysis of d2H and d18O in human urine. Isotopes in Environmental and Health Studies 46:476-483. PDF
432. Chesson, L.A., L.O. Valenzuela, G.J. Bowen, T.E. Cerling, and J.R. Ehleringer. 2011. Consistent predictable patterns in the hydrogen and oxygen stable isotope ratios of animal proteins consumed by modern humans in the USA. Rapid Communications in Mass Spectrometry 25:3713-3722. PDF
434. Podlesak, D.W., G.J. Bowen, S. O’Grady, T.E. Cerling, and J.R. Ehleringer. 2012. d2H and d18O of human body water: a GIS model to distinguish residents from non-residents in the contiguous USA. Isotopes in Environmental and Health Studies 48:259-279. doi:10.1080/10256016.2012.644283. PDF
455. Bender, R.L., D. L. Dufour, L.O. Valenzuela, T.E. Cerling, M. Sponheimer, J.C. Reina, and J.R. Ehleringer. 2014. Stable isotopes (carbon, nitrogen, sulfur), diet, and anthropometry in urban Colombian women: investigating socioeconomic differences. American Journal of Human Biology doi:10.002/ajhb.2264 PDF
465..Zazzo, A., T.E. Cerling, J.R. Ehleringer, A. Mooney, F.J. Monahan, and O. Schmidt. 2015. Isotopic composition of sheep wool records seasonality of climate and diet. Rapid Communications in Mass Spectrometry 29:1357-1369. PDF
491. Chesson, L.A., B.J. Tipple, J.R. Ehleringer, T. Park, and E.J. Bartelink. 2018. Forensic applications of isotope landscapes (‘isoscapes’): a tool for predicting region-of-origin in forensic anthropology cases, pages 127-148. Chapter 8. In C.C. Boyd and D.C. Boyd (eds.), Forensic Anthropology: Theoretical Framework and Scientific Basis. John Wiley and Sons, Ltd., New York. PDF
516. Nardoto, G.B., J.P. Sena-Souza, T.B. Kisaka, F.J. Viana Costa, P.J. Duarte-Neto, J.R. Ehleringer, and L.A. Martinelli. 2020. Increased carbon isotope ratios of Brazilian fingernails are correlated with increases in socioeconomic status. npj Science of Food 4:9. https://Doi.org/10.1038/s41538- 020-0069-1. PDF
518. Ehleringer, J.R., S. Covarrubias, B.J. Tipple, L.O. Valenzuela, and T. E. Cerling. 2020. Stable isotopes in hair reveal dietary protein sources with links to socioeconomic status and health across the United States. Proceedings of the National Academy of Sciences USA 117:20044- 20051. http://doi.org/10.1073/pnas.1914087117. PDF
524. Valenzuela, L.O., S.P. O’Grady, and J.R. Ehleringer. 2021. Variations in human body water isotope composition across the United States. Forensic Science International 327:110990. https://doi.org/j.forsciint.2021.110990 PDF
526. Mancuso, C.J., C.M. Cornwall, S. Robinson, L.O. Valenzuela, and J.R. Ehleringer. 2021. Breath stable isotope analysis serves as a non-invasive analytical tool to demonstrate dietary changes in adolescent students over time. Frontiers in Medicine 8:697557. PDF
293. Sponheimer, M., T. Robinson, L. Ayliffe, B. Roeder, J. Hammer, B. Passey, A. West, T.E. Cerling, M.D. Dearing, and J.R. Ehleringer. 2003. Nitrogen isotopes in mammalian herbivores: hair d15N values from a controlled-feeding study. International Journal of Osteoarchaeology 13:80-87. PDF
295. Sponheimer, M., T. Robinson, L. Ayliffe, B. Roeder, L. Shipley, E. Lopez, J. Hammer, B. Passey, T.E. Cerling, M.D. Dearing, and J.R. Ehleringer. 2003. An experimental study of carbon isotope fractionation in the hair and feces of mammalian herbivores. Canadian Journal of Zoology 81:871-876. PDF
307. Sponheimer, M., T.F. Robinson, B.L. Roeder, B.H. Passey, L.K. Ayliffe, T.E. Cerling, M.D. Dearing, and J.R. Ehleringer. 2003. An experimental study of nitrogen flux in llamas: is 14N preferentially excreted? Journal of Archaeological Science 30:1649-1655. PDF
310. Ayliffe, L.K., T.E. Cerling, T. Robinson, A. West, M. Sponheimer, B. Passey, J. Hammer, B. Roeder, M.D. Dearing, and J.R. Ehleringer. 2004. Turnover of carbon isotopes in tail hair and breath CO2 of horses fed an isotopically varied diet. Oecologia 139:11-22. PDF
312. Coltrain, J.B., M.D. Dearing, J.M. Harris, J. Ward, T.E. Cerling, J. Allen, and J.R. Ehleringer. 2004. Trophic level relationships among Rancho La Brea fauna and their implications for the paleocology of the late Pleistocene based on bone collagen stable carbon and nitrogen isotope chemistry. Palaeogeography, Palaeoclimatology, and Palaeoecology 205:199-219. PDF
316. West, A.G., L.K. Ayliffe, T.E. Cerling, T.F Robinson, B. Karren, M.D. Dearing, and J.R. Ehleringer. 2004. Short-term diet changes revealed using stable carbon isotopes in horse tail-hair. Functional Ecology 18:616-624. PDF
324. Baugh, A.T., A.G. West, E.A. Rickart, T.E. Cerling, J.R. Ehleringer, and M.D. Dearing. 2004. Stable isotope evidence for ecological separation of syntopic shrews (genus Sorex). Southwestern Naturalist 49:493-500. PDF
327. Ward, J., J.M. Harris, T.E. Cerling, A. Wiedenhoeft, M.J. Lott, M.D. Dearing, J.B. Coltrain, and J.R. Ehleringer. 2005. Carbon starvation in glacial trees at the La Brea tar pits, southern California. Proceedings of the National Academy of Sciences 102:690-694. doi 10.1073/pnas.0408315102 PDF
338. Bowen, G.J., L. Chesson, K. Nielson, T.E. Cerling, and J.R. Ehleringer. 2005. Treatment methods for the determination of d2H and d18O of hair keratin by continuous-flow isotope ratio mass spectrometry. Rapid Communications in Mass Spectrometry 19:2371-2378. doi: 10.1002/rcm.2069. PDF
343. Passey, B.H., T.F. Robinson, L.K. Ayliffe, T.E. Cerling, M. Sponheimer, M.D. Dearing, B.L. Roeder, and J.R. Ehleringer. 2005. Carbon isotope fractionation between diet, breath CO2, and bioapatite in different mammals. Journal of Archaeological Science 32:1459-1470. PDF
353. Robinson, T.F., M. Sponheimer, B.L. Roeder, B. Passey, T.E. Cerling, M.D. Dearing, and J.R. Ehleringer. 2006. Digestability and nitrogen retention in llamas and goats fed alfalfa, C3 grass, and C4 grass hays. Small Ruminant research 64:162-168. PDF
354. Sponheimer, M., T.F. Robinson, T.E. Cerling, L. Tegland, B.L. Roeder, L. Ayliffe, M.D. Dearing, and J.R. Ehleringer. 2006. Turnover of stable carbon isotopes in muscle, liver, and breath CO2 of alpacas (Lama pacos). Rapid Communications in Mass Spectrometry 20: 1395-1399. PDF
366. Cerling, T.E., L.K. Ayliffe, M.D. Dearing, J.R. Ehleringer, B.H. Passey, D.W. Podlesak, A.-M. Torregrossa, and A.G. West. 2007. Determining biological tissue turnover using stable isotopes: the reaction progress variable. Oecologia 151:175-189. DOI: 10.1007/s00442-006-0571-4 PDF
375. Cerling, T.E., G.J. Bowen, J.R. Ehleringer, and M. Sponheimer. 2007. The reaction progress variable and isotope turnover in biological systems. In Dawson, T.E., and R.T.W. Siegwolf (eds.), Stable isotopes as indicators of ecological change. Academic Press, San Diego. PDF
384. Podlesak, D.W., A.-M. Torregrossa, J.R. Ehleringer, M.D. Dearing, B.H. Passey, and T.E. Cerling. 2008. Turnover of oxygen and hydrogen isotopes in the body water, CO2, hair, and enamel of a small mammal. Geochimica et Cosmochima Acta 72:19-35. PDF
386. Ehleringer, J.R., G.J. Bowen, L.A. Chesson, A.G. West, D. Podlesak, and T.E. Cerling. 2008. Hydrogen and oxygen isotopes in human hair are related to geography. Proceedings of the National Academy of Sciences USA 105:2788-2793. PDF
398. Bowen, G.J., J.R. Ehleringer, L.A. Chesson, A. Thompson, D. Podlesak, and T.E. Cerling. 2009. Dietary and physiological controls on the hydrogen and oxygen isotope ratios of hair from mid-20th century indigenous populations. American Journal of Physical Anthropology 139:494-504. doi:10.1002/ajpa.21008. PDF
400. Cerling, T.E., G. Wittemyer, J.R. Ehleringer, C.H. Remien, and I. Douglas-Hamilton. 2009. History of animals using isotope records (HAIR): a 6-year dietary history of one family of African elephants. Proceedings of the National Academy of Sciences USA 106:8093-8100. doi: 10.1073/pnas0902192106. PDF
406. Thompson, A.H., L.A. Chesson, D.W. Podlesak G.J. Bowen, T.E. Cerling, and J.R. Ehleringer. 2010. Stable isotope analysis of modern human hair collected along an Asian geographic transect. American Journal of Physical Anthropology 141:440-451. PDF
415. O’Grady, S.P., A.R. Wende, C.H. Remien, L.O. Valenzuela, L.E. Enright, L.A. Chesson, E.D. Abel, T.E. Cerling, and J.R. Ehleringer. 2010. The stable isotope signature of body water as a biomarker of aberrant water homeostasis: diabetes mellitus, an index case. PLoS ONE 5(7):e11699. doi:10.1371/journal.pone.0011699. PDF
421. O’Grady, S.P., L.E. Enright, J.E. Barnette, T.E. Cerling, and J.R. Ehleringer. 2010. Accuracy and precision of a laser-spectroscopy approach to the analysis of d2H and d18O in human urine. Isotopes in Environmental and Health Studies 46:476-483. PDF
432. Chesson, L.A., L.O. Valenzuela, G.J. Bowen, T.E. Cerling, and J.R. Ehleringer. 2011. Consistent predictable patterns in the hydrogen and oxygen stable isotope ratios of animal proteins consumed by modern humans in the USA. Rapid Communications in Mass Spectrometry 25:3713-3722. PDF
434. Podlesak, D.W., G.J. Bowen, S. O’Grady, T.E. Cerling, and J.R. Ehleringer. 2012. d2H and d18O of human body water: a GIS model to distinguish residents from non-residents in the contiguous USA. Isotopes in Environmental and Health Studies 48:259-279. doi:10.1080/10256016.2012.644283. PDF
455. Bender, R.L., D. L. Dufour, L.O. Valenzuela, T.E. Cerling, M. Sponheimer, J.C. Reina, and J.R. Ehleringer. 2014. Stable isotopes (carbon, nitrogen, sulfur), diet, and anthropometry in urban Colombian women: investigating socioeconomic differences. American Journal of Human Biology doi:10.002/ajhb.2264 PDF
465..Zazzo, A., T.E. Cerling, J.R. Ehleringer, A. Mooney, F.J. Monahan, and O. Schmidt. 2015. Isotopic composition of sheep wool records seasonality of climate and diet. Rapid Communications in Mass Spectrometry 29:1357-1369. PDF
491. Chesson, L.A., B.J. Tipple, J.R. Ehleringer, T. Park, and E.J. Bartelink. 2018. Forensic applications of isotope landscapes (‘isoscapes’): a tool for predicting region-of-origin in forensic anthropology cases, pages 127-148. Chapter 8. In C.C. Boyd and D.C. Boyd (eds.), Forensic Anthropology: Theoretical Framework and Scientific Basis. John Wiley and Sons, Ltd., New York. PDF
516. Nardoto, G.B., J.P. Sena-Souza, T.B. Kisaka, F.J. Viana Costa, P.J. Duarte-Neto, J.R. Ehleringer, and L.A. Martinelli. 2020. Increased carbon isotope ratios of Brazilian fingernails are correlated with increases in socioeconomic status. npj Science of Food 4:9. https://Doi.org/10.1038/s41538- 020-0069-1. PDF
518. Ehleringer, J.R., S. Covarrubias, B.J. Tipple, L.O. Valenzuela, and T. E. Cerling. 2020. Stable isotopes in hair reveal dietary protein sources with links to socioeconomic status and health across the United States. Proceedings of the National Academy of Sciences USA 117:20044- 20051. http://doi.org/10.1073/pnas.1914087117. PDF
524. Valenzuela, L.O., S.P. O’Grady, and J.R. Ehleringer. 2021. Variations in human body water isotope composition across the United States. Forensic Science International 327:110990. https://doi.org/j.forsciint.2021.110990 PDF
526. Mancuso, C.J., C.M. Cornwall, S. Robinson, L.O. Valenzuela, and J.R. Ehleringer. 2021. Breath stable isotope analysis serves as a non-invasive analytical tool to demonstrate dietary changes in adolescent students over time. Frontiers in Medicine 8:697557. PDF