Stable nitrogen isotope ratios collagen

Schoeninger, M.J., DeNiro, M.J. and Tauber, H. 1983 Stable nitrogen isotope ratios of bone collagen reflect marine and terrestrial components of prehistoric human diet. Science 220 1381-1383. 

Keegan, W.F. and DeNiro, M.J. 1988 Stable carbon- and nitrogen- isotope ratios of bone collagen used to study coral-reef and terrestrial components of prehistoric Bahamian diet. American Antiquity 53 320-336. 

Ambrose, S.H. DeNiro, M.J. (1989). Climate and habitat reconstruction using stable carbon and nitrogen isotope ratios of collagen in prehistoric herbivore teeth from Kenya. Quaternary Research 31,407-422. 

DeNiro, M., and M.J. Schoeninger. 1983. Stable carbon and nitrogen isotope ratios of bone collagen variations within individuals, between sexes, and within populations raised on monotonous diets. Journal of Archaeological Science 10 199-204. 

Walker, PL. and DeNiro, M.J. 1986 Stable nitrogen and carbon isotope ratios in bone collagen as indices of prebistoric dietary dependence on marine and terrestrial resources in Soutbem California. American Journal of Physical Anthropology 71 51-61. 

Table 9.4. C N molar ratios (calculated and measured), total C and N content and stable carbon and nitrogen isotope data from bacteria, their growth medium (nutrient broth), and from collagen (infected and non-infected marten bone). The bacteria for inoculation were raised on nutrient broth (nb), with/without additives.

Figure 1 Typical carbon and nitrogen stable isotope ratios of collagen extracted from various species. In this example the terrestrial animals consume only C3 plants (herbivores and omnivores) or animals that consume only C3 plants (carnivores and omnivores). The marine organisms are distinguished from the terrestrial organisms through the value, which is less depleted in The value indicates the trophic level of an organism in the food web.

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