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      Trophic level isotopic enrichment of carbon and nitrogen in bone collagen: case studies from recent and ancient terrestrial ecosystems

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      International Journal of Osteoarchaeology

      Wiley-Blackwell

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          Experimental Evidence for the Relationship of the Carbon Isotope Ratios of Whole Diet and Dietary Protein to Those of Bone Collagen and Carbonate

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            Incorporating concentration dependence in stable isotope mixing models

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              The isotopic ecology of East African mammals.

              The stable carbon and nitrogen isotope ratios of bone collagen have been used to trace diet and habitat selection of the larger mammals of East Africa. 238 individuals of 43 species from montane forests and grasslands in Kenya and Tanzania have been analyzed. The results show that carbon isotopes discriminate between (1) grazers and browsers in savanna grasslands, (2) forest floor and savanna grassland herbivores and (3) forest floor and forest canopy species. Nitrogen isotopes discriminate between (4) carnivores and herbivores, (5) forest and savanna grassland herbivores, and (6) water-dependent and drought-tolerant herbivores. This technique provides a quantitative approach to assessing long-term habitat and diet selection and the role of resource partitioning in animal community structure.
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                Author and article information

                Journal
                International Journal of Osteoarchaeology
                Int. J. Osteoarchaeol.
                Wiley-Blackwell
                1047-482X
                1099-1212
                January 2003
                January 2003
                : 13
                : 1-2
                : 46-53
                10.1002/oa.662
                © 2003

                http://doi.wiley.com/10.1002/tdm_license_1.1

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                Self URI (article page): http://doi.wiley.com/10.1002/oa.662

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