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Ehleringer, James R.; Cerling, Thure E.; Dearing, Maria-Denise | Experimental study of carbon-isotope fractionation between diet, hair, and feces of mammalian herbivores | The carbon-isotope composition of hair and feces offers a glimpse into the diets of mammalian herbivores. It is particularly useful for determining the relative consumption of browse and graze in tropical environments, as these foods have strongly divergent carbon-isotope compositions. Fecal ?13C v... | Fractionation; Mammalian herbivores; Medicago sativa; Cynodon dactylon | 2003 |