Rumiko Nakashita

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Stable isotopic compositions of carbon (δ13C) and oxygen (δ18O) in plants reflect growth conditions. Therefore, these isotopes might be good indicators of changes in environmental factors, such as variations in air temperature caused by climate change. It is predicted that climate change will lead to a greater increase in minimum air temperatures (primarily(More)
We determined the magnitude of isotopic fractionation of carbon and nitrogen stable isotope ratios (as enrichment factors, Δδ13C and Δδ15N, respectively) between the tissues and diets of captive Japanese macaques (Macaca fuscata) using a controlled feeding experiment, to provide basic data for reconstructing their feeding habits. The Δδ13C and Δδ15N values,(More)
Measures of δ13C and δ15N in tissues of Asiatic black bears (Ursus thibetanus) can be useful in helping researchers identify nuisance bears and in determining whether a specific bear might be consuming anthropogenic food such as garbage and corn. However, the δ13C and δ15N values of native foods vary across the bear’s range. The purposes of this study were(More)
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