Publications (Updated May 2009)

Codron, D., Codron, J., Lee-Thorp, J.A., Sponheimer, M., Grant, R.C., Brink, J.S. (2009). Stable isotope evidence for nutritional stress, competition, and loss of functional habitat as factors limiting recovery of rare antelope in southern Africa. Journal of Arid Environments 73, 449-457.

De Ruiter, D., Sponheimer, M. & Lee-Thorp, J. (2008). Animal Paleocommunity Variability and Habitat Preference of Australopithecus robustus in South Africa. Journal of Human Evolution 55, 1015–1030.

Copeland, S.R., Sponheimer, M., le Roux, P.J., Grimes, V., Lee-Thorp, J.A., de Ruiter, D.J., Richards, M.P. (2008). Strontium isotope ratios (87Sr/86Sr) of tooth enamel: a comparison of solution and laser ablation MCICPMS methods. Rapid Communications in Mass Spectrometry 22, 3187–3194.

Codron, D., Lee-Thorp, J., Sponheimer, M, de Ruiter, D & Codron, J. (2008). Insights into Early Hominin Differentiation from a Comparison with Baboon Feeding Ecology. International Journal of Primatology 29, 757-772.

Codron, D., Brink, J.S., Rossouw, L., Clauss, M., Codron, J., Lee-Thorp, J.A. & Sponheimer, M. (2008). Functional differentiation of African grazing ruminants: an example of specialized adaptations to very small changes in diet. Biological Journal of the Linnaean Society 94, 755-764.

Copeland, S.R*., Sponheimer, M., Spinage, C.A., Lee-Thorp, J.A. (2008). Isotopic evidence for the diets of waterbuck Kobus ellipsiprymnus in Queen Elizabeth National Park, Uganda. African Journal of Ecology 46, 697-701.

Cerling, T.E., Bowen, G.J., Ehleringer, J.R., Passey, B.H., Sponheimer, M. (2007). The reaction progress variable and isotope turnover in biological systems. In (T. Dawson & R. Siegwolf) Stable Isotopes as Indicators of Ecological Change. Elsevier, Amsterdam, pp. 163-172.

Codron, D., Lee-Thorp, J.A., Sponheimer, M., & Codron, J.* (2007). Stable Carbon Isotope Reconstruction of Ungulate Diet Changes Through the Seasonal Cycle. South African Journal of Wildlife Research 37, 117-125.

Lee-Thorp, J., Sponheimer, M. & Luyt, J. (2007). Tracking changing Pliocene environments of the South African hominin sites using stable isotopes in faunal tooth enamel. Journal of Human Evolution 53, 595-601.

Codron, D., Codron, J., Lee-Thorp, J.A., Sponheimer, M., de Ruiter, D., Sealy, J., Grant, R., & Fourie, N. (2007). Diets of savanna ungulates from stable carbon isotope composition of faeces. Journal of Zoology 273, 21-29.


Codron, D., Codron, J., Lee-Thorp, J.A., Sponheimer, M., de Ruiter, D., & Brink, J.S. (2007). Stable Isotope Characterization of Mammalian Predator-prey Relationships in South African Savannas. European Journal of Wildlife Research. 53, 161-170.
 

Olesiak, S.E., Oyen, M., Sponheimer, M., Eberle, J. & Ferguson, V.L. (2007). Ultrastructural Mechanical and Material Characterization of Fossilized Bone. Mater. Res. Soc. Symp. Proc. Vol. 975.

 

Loudon, J.E., Sponheimer, M., Sauther, M.L., Cuozzo, F.P. (2007). A study of intraspecific variation in δ13C and δ15N of ring-tailed lemurs (Lemur catta) with known life histories. American Journal of Physical Anthropology. 133, 978-985.

 

Sponheimer, M. & Lee-Thorp, J. (2007). Hominin Palaeodiets: The Contribution of Stable Isotopes. In Handbook of Paleoanthropology. Springer-Verlag, Berlin, pp. 555-586.

 

Lee-Thorp, J. & Sponheimer, M. (2007). Contribution of Stable Light Isotopes to Palaeoenvironmental Reconstruction. In Handbook of Paleoanthropology. Springer-Verlag, Berlin, pp. 289-310.

Sponheimer, M., Lee-Thorp, J. & de Ruiter, D. (2007). Icarus, Isotopes, and Australopith Diets. In Evolution of the Human Diet: The Known, the Unknown, and the Unknowable (P. Ungar. Ed.) Oxford University Press, New York, pp. 132-149.

Codron, D., Lee-Thorp, J.A., Sponheimer, M., Codron, J., de Ruiter, D, & Brink, J.S. (2007). Significance of diet type and diet quality for ecological diversity of African ungulates. Journal of Animal Ecology 76, 526-537.

 

Codron, D., Lee-Thorp, J.A., Sponheimer, M., & Codron, J. (2007). Nutritional content of savanna plant foods: implications for browser/grazer models of ungulate diversification. European Journal of Wildlife Research 53, 100-111.

Sponheimer, M., Passey, B., de Ruiter, D., Guatelli-Sternberg, D. Cerling, T. & Lee-Thorp, J. Isotopic Evidence for Dietary Flexibility in the Early Hominin Paranthropus robustus (2006). Science 314, 980-982.

Codron, D., Codron, J., Lee-Thorp, J.A., Sponheimer, M., de Ruiter, D, & Brink, J.S. (2006). Dietary variation in impala Aepyceros melampus recorded by carbon isotope composition of feces. Acta Zoologica Sinica 52, 1015-1025.

Lee-Thorp, J.A. & Sponheimer, M. (2006). Contributions of Biogeochemistry to Understanding Early Hominin Ecology. Yearbook of Physical Anthropology 49, 131-148.

Schubert, B., Ungar, P., Sponheimer, M. & Reed, K. (2006). Microwear evidence for Plio-Pleistocene Bovid Diets from Makapansgat Limeworks Cave, South Africa. Palaeogeography, Palaeoclimatology, Palaeoecology 241, 301-319.

Sponheimer, M., Loudon, J.E., Codron, D., Howells, M.E., Pruetz, J.D. , Codron, J., de Ruiter, D. & Lee-Thorp, J.A. (2006). Do “Savanna” Chimpanzees Consume C4 resources? Journal of Human Evolution 51, 128-133.

Robinson, T.F., Sponheimer, M., Roeder, B.L., Passey, B., Cerling, T.E., Dearing, M.D. & Ehleringer, J.R. (2006). Digestibility and Nitrogen Retention in Llamas and Goats fed Alfalfa, C3 Grass, and C4 Grass Hays. Small Ruminant Research 64, 162-168.

Sponheimer, M. & Lee-Thorp, J.A. (2006). Enamel Diagenesis at South African Australopith Sites: Implications for Paleoecological Reconstruction with Trace Elements. Geochimica et Cosmochimica Acta 70, 1644-1654.

Sponheimer, M., Robinson, T.F., Cerling, T.E., Tegland, L., Roeder, B.L., Ayliffe, L., Dearing, M.D. & Ehleringer, J.R. (2006). Turnover of Stable Carbon Isotopes in the Muscle, Liver, and Breath CO2 of Alpacas (Lama pacos). Rapid Communications in Mass Spectrometry 20, 1395-1399.

Codron, J., Lee-Thorp, J., Sponheimer, M., Grant, C.C.,  Codron, D.M. & De Ruiter, D.J. (2006)  Seasonal and Geographical Differences in African elephant (Loxodonta africana) diets in the Kruger National Park from analysis of 13C/12C ratios of faeces. Journal of Mammalogy 87, 27-34.

 

Codron, D., Lee-Thorp, J.A., Sponheimer, M., De Ruiter, D. & Codron, J. (2006). Inter- and Intra-habitat Dietary Variability of Chacma Baboons (Papio ursinus) in South African Savannas Based on Fecal δ13C and %N. American Journal of Physical Anthropology 129, 204-214.

 

Sponheimer, M., Lee-Thorp, J., de Ruiter, D., Codron, D., Codron, J., Baugh, A. & Thackeray, F.  (2005). Hominins, Sedges, and Termites: New Carbon Isotope Data from the Sterkfontein Valley and Kruger National Park. Journal of Human Evolution 48, 301-312.

 

Sponheimer, M., de Ruiter, D., Lee-Thorp, J. & Spath, A. (2005). Sr/Ca and early hominin diets revisited: new data from modern and fossil tooth enamel. Journal of Human Evolution 48, 147-156.

 

Codron, D., Lee-Thorp, J.A., Sponheimer, M., De Ruiter, D. & Codron, J. (2005). Utilization of Savanna-based Resources by Plio-Pleistocene Baboons. South African Journal of Science 101, 245-249.

 

Codron, J., Codron, D., Lee-Thorp, J., Sponheimer, M., Bond, W.J., De Ruiter, D. & Grant, R. (2005). Taxonomic, Anatomical, and Spatio-Temporal Variations in Stable Carbon and Nitrogen Isotopic Composition of Plants from an African Savanna. Journal of Archaeological Science  32, 1757-1772.

 

Robbins, C.T., Felicetti, L.A. & Sponheimer, M. (2005). Evaluating Nitrogen Isotope Discrimination Relative to Dietary Nitrogen in Mammals and Birds. Oecologia 144, 534-540.

 

Passey, B., Robinson, T., Ayliffe, L., Cerling, T., Sponheimer, M., Dearing, M.D., Roeder, B.L. & Ehleringer, J.R. (2005). Carbon isotope fractionation between diet, breath CO2, and bioapatite in different mammals. Journal of Archaeological Science 32, 1459-1470.

 

Codron, D., Codron, J., Sponheimer, M., Lee-Thorp, J.A., Robinson, T., Grant, C.C., DeRuiter, D. (2005). Assessing Diet in Savanna Herbivores Using Stable Carbon Isotope Ratios of Faeces. Koedoe  48:115-124.

 

Lee-Thorp, J. & Sponheimer, M. (2005). Opportunities and constraints for reconstructing palaeoenvironments from stable light isotope ratios in fossils. Geological Quarterly 49, 195-204.

 

Codron, D., Codron, J., Lee-Thorp, J.A., Sponheimer, M., & DeRuiter, D. (2005). Animal Diets in the Waterberg Based on Stable Isotopic Composition of Faeces. South African Journal of Wildlife Research 35, 43-52.

 

Botha, J., J.A. Lee-Thorp & M. Sponheimer (2004) An Examination of Triassic Cynodont Tooth Enamel Chemistry using Fourier Transform Infrared Spectroscopy.  Calcified Tissue International. 74, 162-169.

 

Ayliffe, L.K., Cerling T.E, Robinson, T., West, A., Sponheimer, M., Passey, B., Hammer, J., Roeder, B., Dearing, D., Ehleringer, J. (2004). Turnover of Carbon Isotopes in Tail Hair and Breath CO2 of Horses Fed an Isotopically Varied Diet. Oecologia 139, 11-22.

 

Sponheimer, M., Robinson, T., Roeder, B., Ayliffe, L., Passey, B., Cerling, T., Dearing, D. & Ehleringer, J. (2003).  An Experimental Study of Nitrogen Flux in Llamas: Is 14N Preferentially Excreted?  Journal of Archaeological Science. 30: 1649-1655.

 

Sponheimer, M. & Lee-Thorp, J. (2003). Using Bovid Carbon Isotope Data to Provide Paleoenvironmental Information. South African Journal of Science 99: 273-275.

 

Sponheimer, M. & Lee-Thorp, J.A. (2003) Differential Resource Utilization by Extant Great Apes and Australopithecines: Towards Solving the C4 Conundrum. Comparative Biochemistry and Physiology. 136: 27-34.

 

Sponheimer, M., Robinson, T., Ayliffe, L., Roeder, B., Shipley, L., Lopez, E., West, A., Hammer, J., Passey, B., Cerling, T., Dearing, D. & Ehleringer, J. (2003). An Experimental Study of Carbon Isotopes in the Diets, Feces, and Hair of Mammalian Herbivores. Canadian Journal of Zoology 81: 871-876.

 

Sponheimer, M, Robinson, T., Roeder, B., Hammer, J., Ayliffe, L., Passey, B., Cerling, T., Dearing, D., & Ehleringer, J. (2003). Digestion and Passage Rates of Grass Hays by Llamas, Alpacas, Goats, Horses, and Rabbits. Small Ruminant Research 48, 149-154.

 

Lee-Thorp, J. & Sponheimer, M. (2003). Three Case Studies used to Reassess the Reliability of Fossil Bone and Enamel Isotope Signals for Paleodietary studies. Journal of Anthropological Archaeology 22: 208-216.

 

Sponheimer, M., Lee-Thorp, J., DeRuiter, D, Smith, J., van der Merwe, N., Reed, K., Ayliffe, L., Heidelberger, C. & Marcus, W. (2003). Diets of Southern African Bovidae: The Stable Isotope Evidence. Journal of Mammalogy 84: 471-479.

 

Sponheimer, M., Grant, C.C., DeRuiter, D. & Lee-Thorp, J. (2003). Diets of Impala from Kruger National Park: Evidence from Stable Carbon Isotopes. Koedoe 46: 1-6.

 

Sponheimer, M., Robinson, T., Ayliffe, L., Roeder, B., Hammer, J., West, A., Passey, B., Cerling, T., Dearing, D. & Ehleringer, J. (2003). Nitrogen Isotopes in Mammalian Herbivores: Hair d15N Values from a Controlled-Feeding Study. International Journal of Osteoarchaeology 13, 80-87.

 

Richards, M.P., Fuller, B.T., Sponheimer, M., Robinson, T., & Ayliffe, L. (2003). Sulphur isotope measurements in archaeological samples: some methodological considerations. International Journal of Osteoarchaeology 13, 37-45.

 

Lee-Thorp, J., Sponheimer, M. & van der Merwe, N. (2003). What do Stable Isotopes Tell Us about Hominid Dietary and Ecological Niches in the Pliocene. International Journal of Osteoarchaeology 13, 104-113.

 

Sarnecki, J. & Sponheimer, M. (2002). Why Neanderthals Hate Poetry: A Critical Notice of Steven Mithen's The Prehistory of the Mind. Philosophical Psychology 15, 173-184.

 

Sponheimer, M. Lee-Thorp, J.A. & Reed. K. (2001). Isotopic Ecology of the Makapansgat Limeworks Perissodactyla. South African Journal of Science 97, 327-329.

 

Sponheimer, M. & Lee-Thorp, J.A. (2001). The Oxygen Isotope Composition of Mammalian Enamel Carbonate: a Case Study from Morea Estate, Mpumalanga Province, South Africa. Oecologia 126, 153-157.

 

Lee-Thorp, J. & Sponheimer, M. (2000). The Diets of South African Australopithecines: the Contribution of Stable Carbon Isotopes. Les Nouvelles de l'Archeologie 168, 767-773.

 

Sponheimer, M. & Lee-Thorp, J.A. (1999). Isotopic Evidence for the Diet of an Early Hominid, Australopithecus africanus. Science 283, 368-370.

 

Sponheimer, M., Reed, K. & Lee-Thorp, J.A. (1999). Combining Isotopic and Ecomorphological Data to Refine Bovid Paleodietary Reconstruction: a Case Study from the Makapansgat Limeworks Hominin Locality. Journal of Human Evolution 36, 705-718.

 

Sponheimer, M. & Lee-Thorp, J.A. (1999). Oxygen Isotopes in Enamel Carbonate and their Ecological Significance. Journal of Archaeological Science 26, 723-728.

 

Sponheimer, M. & Lee-Thorp, J.A. (1999). Alteration of Enamel Carbonate Environments during Fossilization. Journal of Archaeological Science 26, 143-150.

 

Lee-Thorp, J.A., Manning, L. & Sponheimer, M. (1997). Exploring Problems and Opportunities Offered by Down-Scaling Sample Sizes for Carbon Isotope Analyses of Fossils. Bulletin de la Societe Geologique de France 168, 767-773.