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Showing content from https://link.springer.com/doi/10.1007/s004420050868 below:

Carbon isotope fractionation between diet and bioapatite in ungulate mammals and implications for ecological and paleoecological studies

 The isotope enrichment ɛ* of ¹³C between tooth enamel of large ruminant mammals and their diet is 14.1 ± 0.5‰. This value was obtained by analyzing both the dental enamel of a variety of wild and captive mammals and the vegetation that comprised their foodstuffs. This isotope enrichment factor applies to a wide variety of ruminant mammals. Non-ruminant ungulates have a similar isotope enrichment, although our data cannot determine if it is significantly different. We also found a ¹³C isotope enrichment ɛ* of 3.1 ± 0.7‰ for horn relative to diet, and 11.1 ± 0.8‰ for enamel relative to horn for ruminant mammals. Tooth enamel is a faithful recorder of diet. Its isotopic composition can be used to track changes in the isotopic composition of the atmosphere, determine the fraction of C₃ or C₄ biomass in diets of modern or fossil mammals, distinguish between mammals using different subpathways of C₄ photosynthesis,and identify those mammals whose diet is derived from closed-canopy habitats.

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1. Department of Geology and Geophysics, University of Utah, Salt Lake City, UT 84112, USA e-mail: tcerling@bingham.mines.utah.edu, Fax: +1-801-5817065, , , , , , US

   Thure E. Cerling

2. The George C. Page Museum, 5801 Wilshire Boulevard, Los Angeles, CA 90036, USA, , , , , , US

   John M. Harris

1. Thure E. Cerling
2. John M. Harris

Received: 1 July 1998 / Accepted: 9 February 1999

Cerling, T., Harris, J. Carbon isotope fractionation between diet and bioapatite in ungulate mammals and implications for ecological and paleoecological studies. Oecologia 120, 347–363 (1999). https://doi.org/10.1007/s004420050868

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• Issue Date: August 1999

• DOI: https://doi.org/10.1007/s004420050868

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