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Global vegetation change through the Miocene/Pliocene boundary
Between 8 and 6 million years ago, there was a global increase in the biomass of plants using C4 photosynthesis as indicated by changes in the carbon isotope ratios of fossil tooth enamel in Asia,Expand
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The stable isotopic composition of modern soil carbonate and its relationship to climate
The oxygen isotopic composition of modern soil carbonate is well correlated with the isotopic composition of local meteoric water. The carbon isotopic cycle for CO 2 in soils can be described inExpand
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On the isotopic composition of carbon in soil carbon dioxide
Abstract In this study it is shown that the isotopic composition of carbon in soil CO2 differs from the isotopic composition of carbon in soil-respired CO2. Soil CO2 collected from a montane soil hasExpand
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Carbon isotope fractionation between diet and bioapatite in ungulate mammals and implications for ecological and paleoecological studies
Abstract 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 ofExpand
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Development of Asian monsoon revealed by marked ecological shift during the latest Miocene in northern Pakistan
CARBON isotopes from soil carbonate1–4 and soil organic matter5,6 yield palaeoecological information because the carbon in the soil carbonate forms in isotopic equilibrium with local soil CO2 (refsExpand
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Carbon isotope fractionation between diet, breath CO2, and bioapatite in different mammals
The carbon isotope fractionation between tooth enamel bioapatite, breath CO2, and diet was measured for voles, rabbits, pigs, and cattle on controlled diets. The measured fractionation (expressed asExpand
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Abstract We provide stable carbon isotope data from 37 species of African bovids to document dietary preferences for C3 browse (or fruits) or C4 grass. These data provide a quantitative measure ofExpand
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Nitrogen isotopes in mammalian herbivores: hair δ15N values from a controlled feeding study
Nitrogen isotope analysis is a common technique for investigating dietary behaviour in modern and archaeological populations. One of its primary uses is to provide trophic level information. ThisExpand
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Systematic variations in the carbon and oxygen isotopic composition of pedogenic carbonate along elevation transects in the southern Great Basin, United States
Stable carbon- and oxygen-isotope variations in Holocene soil carbonates that formed in the unsaturated zone were examined along several elevation transects in the southern Great Basin, UnitedExpand
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